High-quality GH2132 alloy bar for fasteners and production method of high-quality GH2132 alloy bar

A GH2132, alloy bar technology, applied in furnaces, heat treatment equipment, manufacturing tools, etc., can solve the problems of unstable performance, poor organizational uniformity, restricting the development and production requirements of a new generation of aerospace vehicles and aero-engines, etc. Tensile yield strength at room temperature, stable performance, easy-to-control effects

Pending Publication Date: 2021-06-29
JIANGSU TOLAND ALLOY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In practical applications, high-quality GH2132 superalloy rods for fasteners have long had important problems such as poor microstructure uniformity and unstable performance, which seriously restrict the development and production needs of the new generation of aerospace vehicles and aero-engines

Method used

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  • High-quality GH2132 alloy bar for fasteners and production method of high-quality GH2132 alloy bar

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] The high-quality GH2132 alloy bar for fasteners of the present embodiment includes each composition and weight percentage thereof as follows:

[0046] C: 0.04%;

[0047] Si: 0.32%;

[0048] Mn: 0.28%;

[0049] P: 0.010%;

[0050] S: 0.001%;

[0051] Cu: 0.15%;

[0052] Al: 0.15%;

[0053] V: 0.35%;

[0054] Cr: 14.60%;

[0055] Ni: 26.50%;

[0056] Mo: 1.20%;

[0057] Ti: 2.05%;

[0058] B: 0.005%;

[0059] O: 0.001%;

[0060] N: 0.001%;

[0061] Pb: ≤0.0005%;

[0062] Bi: 0.00001%;

[0063] Se: 0.0001%;

[0064] Ca: 0.002%;

[0065] Sn: 0.001%;

[0066] Mg: 0.001%;

[0067] Ag: 0.0002%;

[0068] Te: ≤0.00005%;

[0069] Tl: 0.00005%; the balance is iron;

[0070] The GH2132 alloy rods for the above-mentioned fasteners are prepared by the following method:

[0071] First, batching→vacuum induction melting→casting electrode→electrode surface treatment→vacuum self-consumption melting→steel ingot diffusion annealing→steel ingot surface treatment to obt...

Embodiment 2

[0082] The high-quality GH2132 alloy bar for fasteners of the present embodiment includes each composition and weight percentage thereof as follows:

[0083] C: 0.03%;

[0084] Si: 0.26%;

[0085] Mn: 0.25%;

[0086] P: 0.008%;

[0087] S: 0.001%;

[0088] Cu: 0.14%;

[0089] Al: 0.13%;

[0090] V: 0.33%;

[0091] Cr: 14.86%;

[0092] Ni: 26.62%;

[0093] Mo: 1.21%;

[0094] Ti: 2.07%;

[0095] B: 0.004%;

[0096] O: 0.001%;

[0097] N: 0.001%;

[0098] Pb: ≤0.0005%;

[0099] Bi: 0.00001%;

[0100] Se: 0.0001%;

[0101] Ca: 0.001%;

[0102] Sn: 0.001%;

[0103] Mg: 0.001%;

[0104] Ag: 0.0001%;

[0105] Te: ≤0.00001%;

[0106] Tl: 0.00004%; the balance is iron;

[0107] The GH2132 alloy rods for the above-mentioned fasteners are prepared by the following method:

[0108] First, batching→vacuum induction melting→casting electrode→electrode surface treatment→vacuum self-consumption melting→steel ingot diffusion annealing→steel ingot surface treatment to obt...

Embodiment 3

[0117] The high-quality GH2132 alloy bar for fasteners of the present embodiment includes each composition and weight percentage thereof as follows:

[0118] C: 0.02%;

[0119] Si: 0.24%;

[0120] Mn: 0.24%;

[0121] P: 0.007%;

[0122] S: 0.001%;

[0123] Cu: 0.13%;

[0124] Al: 0.12%;

[0125] V: 0.31%;

[0126] Cr: 14.63%;

[0127] Ni: 26.31%;

[0128] Mo: 1.18%;

[0129] Ti: 2.04%;

[0130] B: 0.01%;

[0131] O: 0.001%;

[0132] N: 0.001%;

[0133] Pb: ≤0.0005%;

[0134] Bi: 0.00001%;

[0135] Se: 0.0001%;

[0136] Ca: 0.002%;

[0137] Sn: 0.002%;

[0138] Mg: 0.002%;

[0139] Ag: 0.0002%;

[0140] Te: ≤0.00001%;

[0141] Tl: 0.00005%; the balance is iron;

[0142] The GH2132 alloy rods for the above-mentioned fasteners are prepared by the following method:

[0143] First, batching→vacuum induction melting→casting electrode→electrode surface treatment→vacuum self-consumption melting→steel ingot diffusion annealing→steel ingot surface treatment to obta...

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Abstract

The invention relates to a high-quality GH2132 alloy bar for a fastener and a production method of the high-quality GH2132 alloy bar. The grain size of the high-quality GH2132 alloy bar for the fastener is smaller than the fifth grade, the grade difference is the second grade or within, and strip grains do not exist, meanwhile, the room-temperature tensile yield strength of a bar is larger than 720 MPa, the production method is simple in process flow and easy to control, the structure stability of the bar can be effectively improved by conducting diffusion annealing treatment on a consumable steel ingot and controlling the deformation amount during follow-up hot rolling, and the grain size of the obtained bar is generally 7-9 grade, by adopting multi-pass and small-deformation cold drawing processing, the room-temperature tensile yield strength of the material can be effectively improved, the room-temperature tensile yield strength of the bar of the same batch is 729-770 MPa, and the performance is stabler.

Description

technical field [0001] The invention relates to the technical field of deformed superalloys, in particular to a high-quality GH2132 alloy rod for fasteners and a production method thereof. Background technique [0002] The high-quality GH2132 is a Fe-Cr-Ni-based precipitation-hardening deformable superalloy. In order to improve the strength, on the basis of the GH2132 superalloy, the purity is further improved, the content of sulfur, gas and trace elements is reduced, and the heat treatment is adjusted. system. The alloy has good high and low temperature strength and long-term stability, good corrosion resistance and thermal deformation performance, and has good processing plasticity and satisfactory welding performance. It is suitable for making high-temperature load-bearing parts such as turbine disks, compressor disks, and fasteners of aviation, aerospace, ground gas turbines, and flue gas turbine engines. [0003] In practical applications, high-quality GH2132 superall...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21C37/04C22C38/54C22C38/50C22C38/46C22C38/42C22C38/04C22C38/02C22C38/06C21D1/26C21D9/52
CPCB21C37/04C22C38/002C22C38/001C22C38/007C22C38/008C22C38/60C22C38/54C22C38/50C22C38/46C22C38/42C22C38/04C22C38/02C22C38/06C21D1/26C21D9/525
Inventor 石建军王林涛束文武
Owner JIANGSU TOLAND ALLOY
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