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34results about How to "Meet the high-end needs of lightweight development" patented technology

High-thermal-conductivity corrosion-resistant Al-RE-Y-Zr alloy suitable for gravity casting and preparation method thereof

The invention provides a high-thermal-conductivity corrosion-resistant Al-RE-Y-Zr alloy suitable for gravity casting and a preparation method thereof. The alloy comprises, by mass percent, 5%-16% of RE, 0.1%-7% of Y, 0.5%-0.8% of Mg, 0.01%-0.5% of Zr and the balance Al and inevitable impurity elements. RE is at least one of La and Ce. After the high-thermal-conductivity corrosion-resistant Al-RE-Y-Zr alloy is subjected to gravity casting, the room temperature tensile strength reaches up to 175 MPa, the yield strength is 86 MPa or above, the ductility is 10% or above, and the heat conductivitycoefficient is 160 W / (m.K) or above; and the high-end requirements of aerospace, war industry, cars and other industries for light weight development are met
Owner:SHANGHAI JIAO TONG UNIV

High-toughness heat-resistant Mg-Gd alloy suitable for gravity casting and preparation method thereof

The invention provides a high-toughness heat-resistant Mg-Gd alloy suitable for gravity casting and a preparation method thereof. The alloy comprises the following chemical components of, in percentage, 4.0-10.0% of Gd, 2.0-6.0% of Zn, 0.5-1.2% of Al, 0.1-0.3% of Mn, 0.01-0.08% of M, and the balance Mg, wherein the M is one or two elements of Ti and B; the preparation method comprises the following steps that (1) burdening is performed according to a Mg-Gd alloy component; (2) an industrial pure magnesium ingot is melted; (3) heating is performed to 700 DEG C, and industrial pure zinc, an Mg-Gd and Mg-Mn intermediate alloy are melted; (4) heating is performed to 730 DEG C, after an industrial pure aluminum ingot, Al-Ti, Al-Ti-B and Al-B intermediate alloys added are all melted, refining isperformed to obtain a magnesium alloy melt; (5) gravity casting is performed; and (6) secondary solid solution and artificial aging treatment are performed. According to the high-toughness heat-resistant Mg-Gd alloy and the preparation method, after the alloy is subjected to the gravity casting, the secondary solid solution treatment and the artificial aging heat treatment, the tensile strength at room temperature is 300 MPa, the elongation percentage is 15%, the high-temperature tensile strength at 200 DEG C is 218 MPa, the elongation percentage is 20%, and the high-end requirement for lightweight development in the industries of aerospace, automobiles, telecommunication and the like is met.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

High-toughness heat-resisting pressure casting Mg-Gd alloy and preparation method thereof

ActiveCN109807302AEasy to prepareGood stability at high temperatureDuctilityPressure casting
The invention provides a high-toughness heat-resisting pressure casting Mg-Gd alloy and a preparation method thereof. The high-toughness heat-resisting pressure casting Mg-Gd alloy comprises components including, by stoichiometric ratio, 4.0%-8.0% of Gd, 1.2%-4.8% of Zn, 0.5%-1.2% of Al, 0.1%-0.3% of Mn, 0.01%-0.08% of M and the balance Mg, wherein M is one or two elements of Ti and B. The preparation method comprises the steps that firstly, materials are prepared according to Mg-Gb alloy components; secondly, industrial pure magnesium ingots are melted; thirdly, the temperature is raised to 720 DEG C, industrial pure zinc, Mg-Gd and Mg-Mn intermediate alloys are added and stirred to be completely melted; fourthly, the temperature is raised to 730 DEG C, after industrial pure aluminum ingots, Al-Ti, Al-Ti-B and Al-B intermediate alloys are sequentially added, magnesium alloy melt is obtained after refining; and fifthly, the magnesium alloy melt is cooled to a pressure casting temperature so as to be subjected to pressure casting, and a pressure casting alloy is obtained. The strength of extension of the alloy in a pressure casting state at the room temperature reaches 318 MPa, thestrength of extension of the alloy at the high temperature of 200 DEG C reaches 218 MPa, the room temperature ductility reaches 12.0%, the high-toughness heat-resisting pressure casting Mg-Gd alloy can be used without aging or solution heat treatment, and the high-end requirement of aerospace and other industries for light weight is met.
Owner:JIANGSU FAVOUR AUTOMOTIVE NEW STUFF SCI TECH +1

High-strength-toughness and heat-resistant Al-RE-Y-Zr alloy suitable for pressure casting and preparation method thereof

The invention provides a high-strength-toughness and heat-resistant Al-RE-Y-Zr alloy suitable for pressure casting and a preparation method thereof. The alloy comprises the following elements in percentage by mass: 3-11% of RE, 0.1-5% of Y, 0.1-0.4% of Mg, 0.01-0.5% of Zr and the balance of Al element and inevitable impurity elements, wherein RE is at least one of La and Ce. After the high-strength-toughness and heat-resistant Al-RE-Y-Zr alloy is subjected to pressure casting, the room-temperature tensile strength of the die-cast alloy is up to 275MPa, and the elongation percentage is up to 19.5%; and the high-temperature tensile strength at 250 DEG C is up to 134MPa, and the elongation percentage is up to 25%. The alloy can be used without subsequent heat treatment, and satisfies the high-end demands for lightweight development in aerospace, military industry, automobiles and other industries.
Owner:SHANGHAI JIAO TONG UNIV

Pressure casting Mg-Er alloy with high strength, high toughness and heat resistance and preparation method thereof

The invention provides a pressure casting Mg-Er alloy with high strength, high toughness and heat resistance and a preparation method thereof. The alloy is composed of, by mass, 4.0-8.5% of Er, 1.2-5.1% of Zn, 0.5-1.2% of Al, 0.1-0.3% of Mn, 0.01-0.08% of M, and the balance Mg, wherein the M is one or two elements of Ti and B. The preparation method comprises the following steps of (1), proportioning according to the composition of the Mg-Er alloy; (2), melting industrial pure magnesium ingots; (3), heating up to 720 DEG C, adding industrial pure zinc, Mg-Er and Mg-Mn master alloys, and stirring to melt completely; (4), heating up to 730 DEG C, and totally melting the industrial pure aluminum ingots, Al-Ti, Al-Ti-B and Al-B master alloys added in sequence to obtain a magnesium alloy melt;and (5) cooling the magnesium alloy melt to pressure casting temperature to carry out pressure casting to obtain the pressure casting alloy. After the die casting of the alloy, the tensile strength ofthe pressure casting alloy reaches 302 MPa at room temperature, the tensile strength reaches 205 MPa at the high temperature of 200 DEG C, the room temperature elongation reaches 15.0%, and the alloycan be used without aging and solid solution heat treatment to meet the high-end requirement of lightweight in aerospace and other industries.
Owner:FENGYANG L S NET FORMING CO LTD

High-strength, high-ductility and heat-resisting Mg-Gd-Er alloy applicable to low-pressure casting and preparation method for same

The invention provides high-strength, high-ductility and heat-resisting Mg-Gd-Er alloy applicable to low-pressure casting and a preparation method for the same. The alloy is constituted of chemical ingredients including, by mass, 3.0%-7.0% of RE, 1.2%-4.2% of Zn, 0.5%-1.2% of Al, 0.1%-0.3% of Mn, 0.01%%-0.08% of M as well as Mg, wherein M comprises one or two elements between Ti and B. The preparation method comprises the steps that (1) the ingredients of the Mg-Gd-Er alloy are prepared; (2) industrial pure magnesium ingots are melted; (3) the temperature is increased to 700 DEG C, and industrial pure Zn and intermediate alloy of Mg-Gd, Mg-Er and Mg-Mn are melted; (4) the temperature is increased to 730 DEG C, and industrial pure aluminum ingots and intermediate alloy of Al-Ti, Al-Ti-B andAl-B are melted, so a Mg alloy melt is obtained; (5) low-pressure casting is carried out; and (6) secondary solid solution processing and artificial ageing processing are carried out. The high-strength, high-ductility and heat-resisting Mg-Gd-Er alloy applicable to low-pressure casting provided by the invention has the advantages that tensile strength under a room temperature reaches 305Mpa and aductility rate is 18% after the low-pressure casting, secondary solid solution processing and artificial ageing processing; under high-temperature tension at 200 DEG C, the tensile strength reaches 214 Mpa and the ductility rate is 22%; and the alloy satisfies high-end demands for light-weight development in industries such as aerospace and automobiles.
Owner:FENGYANG L S NET FORMING CO LTD +1

High-toughness heat-resisting pressure casting Mg-Y-Er alloy and preparation method thereof

The invention provides a high-toughness heat-resisting pressure casting Mg-Y-Er alloy and a preparation method thereof. The high-toughness heat-resisting pressure casting Mg-Y-Er alloy comprises elements including, by mass percent, 3.0%-7.0% of RE, 1.2%-4.2% of Zn, 0.5%-1.2% of Al, 0.1%-0.3% of Mn, 0.01%-0.08% of M and the balance Mg, wherein M is one or two elements of Ti and B. The preparation method comprises the steps that firstly, materials are prepared according to Mg-Y-Er alloy components; secondly, industrial pure magnesium ingots are melted; thirdly, the temperature is raised to 720 DEG C, industrial pure zinc, Mg-Y, Mg-Er and Mg-Mn intermediate alloys are added and stirred to be completely melted; fourthly, the temperature is raised to 730 DEG C, after industrial pure aluminum ingots, Al-Ti, Al-Ti-B and Al-B intermediate alloys are sequentially added, magnesium alloy melt is obtained after refining; and fifthly, the magnesium alloy melt is cooled to a pressure casting temperature so as to be subjected to pressure casting, and a pressure casting alloy is obtained. After the alloy is subjected to pressure casting, the strength of extension of the alloy in a pressure castingstate at the room temperature reaches 312 MPa, the strength of extension of the alloy at the high temperature of 200 DEG C reaches 205 MPa, the room temperature ductility reaches 13.0%, the high-toughness heat-resisting pressure casting Mg-Y-Er alloy can be used without aging or solution heat treatment, and the high-end requirement of aerospace and other industries for light weight is met.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

High-strength high-toughness heat-resistant Mg-Er alloy suitable for gravity casting and preparation method thereof

ActiveCN109943759AOvercome toughnessOvercoming craftChemical compositionRoom temperature
The invention provides a high-strength high-toughness heat-resistant Mg-Er alloy suitable for gravity casting and a preparation method thereof. The alloy is prepared from the following chemical components in percentage by mass: 4.0-10.0% of Er, 2.0-6.0% of Zn, 0.5-1.2% of Al, 0.1-0.3% of Mn, 0.01-0.08% of M, and the balance Mg, specifically, M is one or two elements of Ti and B. The preparation method comprises the following steps: (1) carrying out burdening according to the Mg-Er alloy components; (2) melting an industrial pure magnesium ingot; (3) rising the temperature to 700 DEG C to meltindustrial pure zinc, the Mg-Er intermediate alloy and a Mg-Mn intermediate alloy; (4) rising the temperature to 730 DEG C, and adding and melting an industrial pure aluminum ingot, an Al-Ti intermediate alloy, an Al-Ti-B intermediate alloy, and an Al-B intermediate alloy to obtain a magnesium alloy melt; (5) carrying out gravity casting; and (6) carrying out secondary solid solution and artificial aging treatment. After gravity casting, secondary solid solution treatment and artificial aging heat treatment, the alloy provided by the invention has tensile strength of 296 MPa and elongation rate of 18% at room temperature; while at high temperature of 200 DEG C, the tensile strength is 215 MPa and the elongation is 23%; and the requirements of aerospace, automobile, telecommunication and other industries for light weight are met.
Owner:FENGYANG L S NET FORMING CO LTD +1

Mg-Gd-Y alloy with high strength and ductility and heat resistance and suitable for low pressure casting and preparation method thereof

The invention provides an Mg-Gd-Y alloy with high strength and ductility and heat resistance and suitable for low pressure casting and a preparation method thereof. The Mg-Gd-Y alloy is prepared fromthe chemical components in percentage by mass: 3.0% to 7.0% of RE, 1.2% to 4.2% of Zn, 0.5% to 1.2% of Al, 0.1% to 0.3% of Mn, 0.01% to 0.08% of M, and the balance of Mg; and M is one or two elementsin Ti and B. The prepared method includes the steps that (1) a material is prepared according to Mg-Gd-Y alloy components; (2) an industrial pure magnesium ingot is melted; (3) a temperature rises to700 DEG C, and industrial pure zinc, and Mg-Gd, Mg-Y and Mg-Mn intermediate alloys are melted; (4) the temperature rises to 730 DEG C, an industrial pure aluminium ingot, and Al-Ti, Al-Ti-B, and Al-Bintermediate alloys are added and all melted, and then magnesium alloy fondant is obtained though refining; (5) low pressure casting is conducted; and (6) second-level solution treatment and artificial aging treatment are conducted. After the Mg-Gd-Y alloy with the high strength and ductility and heat resistance and suitable for low pressure casting is subjected to low pressure casting, second-level solution treatment and artificial aging treatment, indoor temperature extension strength reaches 307 Mpa, and ductility is 17%; and high temperature tensile extension strength at 200 DEG C reaches216 Mpa, ductility is 23%, and the high-end needs of industries of aerospace, automobiles and the like for light weight development are met.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

High-strength toughness heat-resistant mg-gd-er alloy suitable for low-pressure casting and its preparation method

The invention provides a high-strength, toughness, heat-resistant Mg-Gd-Er alloy suitable for low-pressure casting and a preparation method thereof. The alloy has a chemical composition in mass percent of: 3.0-7.0% RE, 1.2-4.2% Zn, 0.5-1.2% Al , 0.1-0.3% Mn, 0.01-0.08% M, and the balance is Mg; where M is Ti, one or two elements in B. Preparation method: 1) batching according to the composition of Mg‑Gd‑Er alloy; 2) melting industrial pure magnesium ingot; 3) heating up to 700°C, mixing industrial pure zinc with Mg‑Gd, Mg‑Er and Mg‑Mn master alloys Melting; 4) Heating up to 730°C, adding industrial pure aluminum ingots, Al-Ti, Al-Ti-B, and Al-B intermediate alloys to melt, then refining to obtain magnesium alloy melt; 5) Low-pressure casting; 6) Secondary Solution treatment, artificial aging treatment. The high-strength, toughness and heat-resistant Mg-Gd-Er alloy suitable for low-pressure casting of the present invention is subjected to low-pressure casting, secondary solution treatment and artificial aging heat treatment, and the tensile strength at room temperature reaches 305 MPa, and the elongation rate is 18%; high temperature stretching at 200 ° C The tensile strength reaches 214MPa and the elongation rate is 22%, which meets the high-end demand for lightweight development in aerospace, automotive and other industries.
Owner:FENGYANG L S NET FORMING CO LTD +1

High-toughness heat-resistant Mg-Gd-Y alloy suitable for gravity casting and preparation method thereof

ActiveCN109930044AGood stability at high temperatureAvoid performance degradationArtificial agingRoom temperature
The invention provides a high-toughness heat-resistant Mg-Gd-Y alloy suitable for gravity casting and a preparation method thereof. The alloy comprises the following chemical components of, in percentage by mass, 4.0%-10.0% of RE, 2.0%-6.0% of Zn, 0.5%-1.2% of Al, 0.1%-0.3% of Mn, 0.01-0.08% of M and the balance Mg, wherein M is one or two elements Ti and B. The preparation method comprises the following steps of (1), proportioning according to Mg-Gd-Y alloy components; (2), melting a industrial pure magnesium ingot; (3), heating to 700 DEG C, melting industrial pure zinc, Mg-Gd-Mg-Y and Mg-Mnintermediate alloy; (4), heating to 730 DEG C, adding and melting industrial pure aluminum ingots, Al-Ti, Al-Ti-B and Al-B intermediate alloy, refining to obtain a magnesium alloy melt; (5), carryingout gravity casting; and (6) carrying out secondary solid solution and artificial aging treatment. According to the method, after the alloy is subjected to gravity casting, secondary solid solution treatment and artificial aging heat treatment, the tensile strength is 298 Mpa and the elongation percentage is 16% at room temperature; the high-temperature tensile strength is 216 Mpa and the elongation percentage is 22% at 200 DEG C, and the high-end requirement for lightweight development in the industries of aerospace, war industry, automobiles and the like is met.
Owner:JIANGSU FAVOUR AUTOMOTIVE NEW STUFF SCI TECH +1

High-strength and tough heat-resistant mg-gd-y alloy suitable for low-pressure casting and its preparation method

The invention provides an Mg-Gd-Y alloy with high strength and ductility and heat resistance and suitable for low pressure casting and a preparation method thereof. The Mg-Gd-Y alloy is prepared fromthe chemical components in percentage by mass: 3.0% to 7.0% of RE, 1.2% to 4.2% of Zn, 0.5% to 1.2% of Al, 0.1% to 0.3% of Mn, 0.01% to 0.08% of M, and the balance of Mg; and M is one or two elementsin Ti and B. The prepared method includes the steps that (1) a material is prepared according to Mg-Gd-Y alloy components; (2) an industrial pure magnesium ingot is melted; (3) a temperature rises to700 DEG C, and industrial pure zinc, and Mg-Gd, Mg-Y and Mg-Mn intermediate alloys are melted; (4) the temperature rises to 730 DEG C, an industrial pure aluminium ingot, and Al-Ti, Al-Ti-B, and Al-Bintermediate alloys are added and all melted, and then magnesium alloy fondant is obtained though refining; (5) low pressure casting is conducted; and (6) second-level solution treatment and artificial aging treatment are conducted. After the Mg-Gd-Y alloy with the high strength and ductility and heat resistance and suitable for low pressure casting is subjected to low pressure casting, second-level solution treatment and artificial aging treatment, indoor temperature extension strength reaches 307 Mpa, and ductility is 17%; and high temperature tensile extension strength at 200 DEG C reaches216 Mpa, ductility is 23%, and the high-end needs of industries of aerospace, automobiles and the like for light weight development are met.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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