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Low-density magnetism-free constant elasticity alloy

A constant elastic alloy, low density technology, applied in the field of alloy materials, can solve problems such as low density

Inactive Publication Date: 2009-05-20
CENT IRON & STEEL RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

There are no patent reports on low-density, non-magnetic, constant elastic Nb-based alloys in China

Method used

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Embodiment Construction

[0026] Using the chemical composition of the alloy of the present invention and the method of secondary vacuum self-consumption, 3 batches of low-density, non-magnetic, and constant-elastic alloy steel ingots were prepared: the alloy ingots were homogenized and annealed at 1650 ° C for 1 hour, and kept at 1070 ° C for 1 hour Forging into a billet, the billet is heated at 1020°C for 1 hour and then hot-rolled into a slab, and the slab is quenched after solution treatment at 1000°C for 1 hour to obtain a solid solution state alloy. Carry out 600 DEG C, 650 DEG C, 700 DEG C × 10h vacuum aging treatment respectively to solid solution state alloy, the performance of the alloy after the aging of gain is listed in the table: In the above-mentioned list, table 1 low-density non-magnetic constant elastic alloy chemistry of the present invention Composition table (weight %), Table 2 is the performance table of the alloy after aging treatment obtained by vacuum aging treatment at 600° C.,...

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Abstract

This patent belongs to alloy material field, and is about a kind of alloy with low density and without magnetism, and the flexibility of it is constant. The following is the chemical components of this alloy( weight percent): Ti 36.0-42.0%, Al 4.0-6.0%, Cr 3.0-6.0%, Hf 2.0-5.0%, the other is Nb. Otherwise, the purity of the materials, which are used to melt the alloy, such as Nb, Ti, Al, Cr and Hf, is not lower than 99.0%. The alloy in this patent owns several advantages compared with the technology in existence, such as high strength, low density, without magnetism and the flexibility of it are constant.

Description

technical field [0001] The invention belongs to the field of alloy materials, in particular to a low-density non-magnetic constant elastic alloy. Background technique [0002] In the prior art, a constant elastic alloy refers to an alloy in which the elastic modulus of the alloy remains basically unchanged with changes in temperature within the temperature range used. As early as 1896, it was found that when the Ni content in the Fe-Ni binary alloy was 28% and 44%, the temperature coefficient of elastic modulus could be zero, but the temperature range of constant elasticity was very narrow, and the temperature coefficient of elastic modulus was extremely sensitive to Ni content. Sensitive and not applied. Since then, carbide-strengthened and aging-strengthened Fe-Ni-based constant elastic alloys have been developed, and many brands have been formed, such as Ni-Span C, Ni-Span D, and 3J53, 3J58 constant elastic alloys in my country. Due to the poor performance consistency a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C27/02C22C30/00C22C1/02
Inventor 张建福卢凤双张敬霖张建生赵栋梁陈建刚
Owner CENT IRON & STEEL RES INST