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Novel powder high-temperature alloy and preparing method thereof

A superalloy and powder technology, applied in the field of new powder superalloy and its preparation, can solve the problems of poor uniformity of microstructure and deterioration of alloy processing performance, shorten melting time and homogenization time, increase density and improve purity degree of effect

Pending Publication Date: 2019-09-10
西部超导材料科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the increase of the content of alloying elements and phases, the uniformity of the microstructure of the alloy blank and the final disc is poor, and the processing performance of the alloy deteriorates sharply.

Method used

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  • Novel powder high-temperature alloy and preparing method thereof
  • Novel powder high-temperature alloy and preparing method thereof
  • Novel powder high-temperature alloy and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment one: a kind of novel powder superalloy of the present invention and preparation method thereof, specifically comprise the following steps:

[0025] 1) According to the powder superalloy composition distribution ratio, as shown in Table 1, calculate and determine the consumption of each raw material;

[0026] Table 1 Alloy chemical composition ratio, wt%

[0027]

[0028] The alloy feeding amount is 2000kg, and the ingredient list is shown in Table 2.

[0029] Table 2 ingredient list

[0030] serial number Raw material type Feeding amount 1 Ni 993.1 2 C 0.44 3 NiP 0.93 4 co 370.1 5 NiTa 81.6 6 Al 63.6 7 Cr 303.9 8 Mo 104 9 Ti 79.6 10 Zr 1.2 11 NiB 2.2

[0031] 2) Surface treatment is carried out on the electrolytic nickel and electrolytic cobalt in the raw materials until the surface is clean and bright in color, and then dried with nickel-tantalum alloy, metal tungs...

Embodiment 2

[0039] A kind of novel powder superalloy of the present invention and preparation method thereof, specifically comprise the following steps:

[0040] 1) According to the powder superalloy composition distribution ratio, as shown in Table 3, calculate and determine the consumption of each raw material;

[0041] Table 3 Alloy chemical composition ratio, wt%

[0042]

[0043] The alloy feeding amount is 3000kg, and the ingredient list is shown in Table 4.

[0044] Table 2 ingredient list

[0045] Table 4 ingredient list

[0046]

[0047]

[0048] 2) Surface treatment is carried out on the electrolytic nickel and electrolytic cobalt in the raw materials until the surface is clean and bright in color, and then dried with nickel-tantalum alloy, metal tungsten, pure titanium, pure aluminum, and pure chromium at 100°C for 5 hours stand-by;

[0049] 3) The electrolytic nickel, pure chromium, electrocobalt, nickel-tantalum alloy, pure tungsten and carbon in step 2) are firs...

Embodiment 3

[0056] A kind of novel powder superalloy of the present invention and preparation method thereof, specifically comprise the following steps:

[0057] 1) According to the powder superalloy composition distribution ratio, as shown in Table 5, calculate and determine the consumption of each raw material;

[0058] Table 5 Alloy chemical composition ratio, wt%

[0059]

[0060] The alloy feeding amount is 2000kg, and the ingredient list is shown in Table 6.

[0061] Table 6 ingredient list

[0062] serial number Raw material type Feeding amount 1 Ni 1041.3 2 C 0.18 3 NiP 2.71 4 co 344.1 5 NiTa 62.7 6 Al 61.6 7 Cr 307.9 8 Mo 100.6 9 Ti 75.8 10 Zr 1 11 NiB 1.4

[0063] 2) Surface treatment is carried out on the electrolytic nickel and electrolytic cobalt in the raw materials until the surface is clean and bright in color, and then dried with nickel-tantalum alloy, metal tungsten, pure titan...

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Abstract

The invention relates to novel powder high-temperature alloy and preparing method thereof. The novel powder high-temperature alloy comprises, by weight percent, 14.00 to 15.00% of Cr, 14.50 to 19.50%of Co, 4.5 to 5.5% of Mo, 3.25 to 4.10% of Ti, 2.50 to 3.10% of Al, 1.45 to 2.50% of Ta, 0.55 to 1.55% of Hf, 0.045 to 0.068% of Zr, 0.005 to 0.030% of C, 0.006 to 0.023% of B, 0.002 to 0.030% of P, 0.01 to 2.0% of Re, 0.1 to 2.0% of W, 0.1 to 1.0% of Nb, smaller than 0.5% of Y, smaller than 0.3% of V, smaller than 0.5% of Fe, smaller than 0.15% of Si, smaller than 0.12% of Mn, and the balance Ni.The gamma' phase content in the l powder high-temperature alloy is about 40 to 50%. The novel powder high-temperature alloy prepared through the preparing method has the good room temperature strength, high temperature strength and high temperature creep properties, and the use temperature is up to 750 DEG C.

Description

technical field [0001] The invention relates to the field of superalloys, in particular to a novel powder superalloy and a preparation method thereof. Background technique [0002] Superalloys are widely used in aviation, aerospace, nuclear industry, energy power, petrochemical industry, transportation and other fields. They are irreplaceable key structural materials for military and civil aero-engines and hot-end components of ground gas turbines. Typical aeroengine turbine disk materials mainly include GH4738 alloy, GH4720li alloy, etc. GH4738 alloy and GH4720Li alloy are phase precipitation hardening nickel-based superalloys, which are added to the original iron-nickel-chromium-based GH4169 deformed superalloy by adding more solid solution strengthening elements W, Mo and precipitation strengthening elements Al and Ti to improve The phase content in the alloy, thereby increasing the service temperature of the alloy, makes the GH4738 alloy have good tensile and durable st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C19/05C22C1/03B22F9/10C22F1/10
CPCB22F9/10C22C1/023C22C1/03C22C19/056C22F1/10
Inventor 曹国鑫付宝全王玮东史新波薛建飞张建伟杜刚刘向宏冯勇
Owner 西部超导材料科技股份有限公司
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