8 results about "Mg composite" patented technology

The application discloses a self-circulation C f / Mg composite material recycling device and method, belonging to the field of material recycling; including an electrochemical reaction module, a heating and stirring module connected with the electrochemical reaction module, and a recycling module; the electrochemical reaction is accelerated through the heating and stirring module, and the electrolyte is automatically circulated and filtered through the recycling module, so that the electrolyte concentration is stable and the recovery rate is ensured; the electrochemical reaction module comprises a recycling pool containing electrolyte and a reaction piece arranged in the recycling pool; the reaction piece comprises a recycling piece connected with a positive electrode of a power supply and a carbon steel plate connected with a negative electrode of the power supply; the recycling module filters and recycles the electrolyte after reaction, and circulates the filtered electrolyte to the recycling pool again, so as to be continuously recycled. The application can recycle at room temperature, avoids the risk of flammability and explosion of magnesium alloy in a high-temperature environment, reduces energy consumption while ensuring the recovery rate, and realizes green and environment-friendly recycling.

The invention belongs to the technical field of preparation of light metal plates, and particularly relates to a preparation method of a heterogeneous aluminum alloy composite plate. The method comprises the following steps: preheating an Al-Zr plate sample, dipping the Al-Si alloy in a semi-molten state, and cooling to obtain an Al-Zr-Si composite sample; the method comprises the following steps: preheating an Al-Zr-Si composite sample, dipping the Al-Mg-Si alloy in a semi-molten state, and cooling to obtain an Al-Zr-Si-Mg composite sample; and the Al-Zr-Si-Mg composite sample is pretreated and subjected to accumulative ply rolling, and the heterogeneous aluminum alloy composite board is obtained. The prepared heterogeneous aluminum alloy composite board is of a layered gradient heterostructure, the mechanical property layout of'toughness-strength-stronger 'from outside to inside is achieved, the bearing capacity of each layer is fully played, the best matching of strength and plasticity is achieved, and the performance requirements of shells of aerospace and electronic equipment are met.

The application belongs to the field of metal materials, and specifically discloses a preparation method of Ti / Mg composite material powder for 3D printing; the preparation method of the Ti / Mg composite material powder comprises the following steps: mixing titanium powder and a magnesium source, and then sequentially performing ultrasonic dispersion and grinding to obtain a composite powder; performing segmented hot-pressing sintering on the composite powder to obtain a composite material block; hot-extruding the composite material block into a filament to obtain a composite material filament; and performing plasma atomization on the composite material filament to obtain the Ti / Mg composite material powder. The preparation method has the advantages of simplicity, stability, easy operation, and the like, and the prepared Ti / Mg composite material powder has high sphericity, high fluidity, uniform composition, good dispersity, and the like, and can meet the requirements of the 3D printing process.

This invention provides a Gr / Al-Mg2Si-Mg composite powder, its preparation method, alloy components, and end products. The composite powder comprises 6.0%~14.0% Mg, 1.0%~6.0% Si, 0.1%~0.6% Mn, 0.1%~0.2% Ti, 0.28%~0.32% Al-5Ti-B, 1.0%~8.0% Mg2Si, and 0.5%~3% graphene Gr, with the balance being Al. By increasing the Mg content and adding a small amount of Si, the content of the Mg2Si reinforcing phase is increased. Simultaneously, in addition to introducing small amounts of Mn and Ti, graphene Gr is introduced as a reinforcement to significantly improve mechanical properties. Through forming processes such as selective laser melting, alloy components with high yield strength, high tensile strength, and high elongation can be formed, filling the gap in low-cost, high-strength aluminum alloy systems produced by selective laser melting.

A kind of zero inclusion stainless steel electron beam melting directional solidification preparation method belongs to stainless steel smelting technical field.The alloy is quantitatively supplemented according to the Cr content of stainless steel: when the alloy base material component of electron beam melting can be adjusted in the process of induction melting, the Cr element is supplemented in the process of induction melting;when the alloy base material of electron beam melting is standard alloy component, the alloy component is adjusted back through the form of alloy package in the process of electron beam melting;in the process of electron beam melting, Ca-Mg composite reaction agent is added to realize the conversion and removal of large-size inclusions in stainless steel;the directional solidification electron beam scanning mode is designed to realize the preparation of zero-inclusion stainless steel product.The present application solves the problems of long process, complex process control, and poor removal effect of large-size inclusions in the process of slagging and multi-stage melting by using electron beam melting directional solidification technology, adding Ca-Mg reaction agent and variable radius annular scanning mode, and the product can reach the cleanliness level of zero-inclusion product.

The invention provides TiBCN / AlSi10Mg composite powder, a preparation method of the TiBCN / AlSi10Mg composite powder and a 3D printing method of a TiBCN / AlSi10Mg composite material, and belongs to the technical field of additive manufacturing. The purified alloy liquid is subjected to ultrasonic treatment and then subjected to pneumatic atomization, obtained composite powder particles are uniform in distribution and composition and free of agglomeration, TiBCN is adopted as a reinforcement phase, in the process of preparing the composite material through 3D printing, the surface of TiBCN is partially molten and reacts to form a shell layer, and the interior unmolten TiBCN forms a core layer, so that the TiBCN exists in a matrix in a core-shell structure, and the composite material is prepared. And the interface bonding effect of a reinforcing phase and a matrix can be improved, so that the mechanical property of the composite material is improved.

This invention belongs to the field of materials technology, specifically relating to a biomedical nanocrystalline Ti-Mg alloy coating with a micro / nano porous structure, its preparation method, and its applications. This invention constructs a nanocrystalline Ti-Mg alloy coating with a micro / nano porous structure on the surface of pure titanium or titanium alloys. Specifically, its interior contains micron-sized macropores, while its pore walls contain numerous submicron to nano-sized micropores. The framework material is nanocrystalline, thereby achieving a synergistic enhancement of the bioactivity and adjustment of the elastic modulus of the Ti-Mg alloy through porous structures of different scales. Simultaneously, the nanocrystalline structure strengthens the mechanical properties of the porous coating. Ti acts as the framework, providing mechanical support, while Mg serves as the bioactive and micro / nano-porous material. When the Ti-Mg composite material is implanted into the human body, Mg gradually degrades, which can improve the material's bioactivity (inducing new bone formation).

This invention discloses a biodegradable iron-reinforced Zn / Fe / Mg composite material, its preparation method, and its applications. The preparation method involves mixing magnesium powder and zinc powder to obtain a mixed powder. Iron foam is then filled with the mixed powder, and two Zn plates are placed on top and bottom to cover the iron foam, forming a composite plate. The composite plate is then subjected to single-pass cold rolling to obtain a cold-rolled plate. The cold-rolled plate is cut in half lengthwise, stacked, and then subjected to single-pass cold rolling again. This process of cutting, stacking, and single-pass cold rolling is repeated until the biodegradable Zn / Fe / Mg layered composite material is obtained. The biodegradable Zn / Fe / Mg composite material prepared by this invention exhibits significant work hardening ability at room temperature, showing a 260% strength increase compared to the same pass of pure zinc plate rolling. It also possesses excellent mechanical properties and antitumor properties.