ISSN:1003-8620

CN:42-1243/TF

主管:中信泰富特钢集团股份有限公司

主办:大冶特殊钢有限公司

特殊钢 ›› 2025, Vol. 46 ›› Issue (3): 34-37.DOI: 10.20057/j.1003-8620.2024-00237

• 产品研发 • 上一篇    下一篇

Ni-Cr-Al合金冷拉棒材的力学性能研究

刘军凯1, 于一鹏1, 沈亚秋2, 王晶1, 罗曦1, 张建生1   

  1. (1 钢铁研究总院有限公司功能材料研究院,北京 100081;2 北京首航科学技术开发有限公司信阳分公司,信阳464000)
  • 收稿日期:2024-09-29 出版日期:2025-05-30 发布日期:2025-06-01
  • 作者简介:刘军凯(1992—),男,硕士
  • 基金资助:
     钢铁研究总院有限公司自主投入研发专项基金青年人才项目(事23020280B)

Mechanical Properties of Ni-Cr-Al Alloy Cold Drawn Bar

Liu Junkai1, Yu Yipeng1, Shen Yaqiu2, Wang Jing1, Luo Xi1, Zhang Jiansheng1   

  1. (1 Institute of Functional Materials, Central Iron and Steel Research Institute Limited, Beijing 100081,China;2 Xinyang Branch, Beijing Shouhang Science-technology; Development Company , Xinyang 464000,China)
  • Received:2024-09-29 Published:2025-05-30 Online:2025-06-01

摘要: 通过室温拉伸试验,光学显微镜和硬度试验对200 kg的真空感应+真空自耗重熔相结合(VIM+VAR)的冶炼工艺制备Ni-Cr-Al合金进行分析(/%:0.01C,0.10~0.20Si,0.20~0.40Mn,0.01P,0.01S,15.50Cr,4.50Al,3.00Fe,0.005-0.01Y,0.005-0.01Zr)。研究不同道次变形量对Ni-Cr-Al合金材料力学性能的影响。实验结果表明:随着累计冷拔变形量的增加,合金的抗拉强度、屈服强度和维氏硬度逐渐增加,其断面收缩率和伸长率逐渐减少,当变形量增加到一定程度,合金的力学性能基本不发生变化。当Ni-Cr-Al合金的累计变形量达到78.7%,其性能最为优异,Ni-Cr-Al合金的室温抗拉强度、屈服强度、断面收缩率、伸长率和维氏硬度分别为1 449 MPa、1 130 MPa、45%、10%和476。

关键词: Ni-Cr-Al合金, 冷拔, 变形量, 力学性能

Abstract: In this paper, the preparation of Ni-Cr-Al alloy by the smelting process of 200 kg vacuum induction + vacuum arc remelting(VIM+VAR) was analyzed by means of tensile test at room temperature, optical microscope and hardness test (/%:0.01C, 0.10-0.20Si, 0.20~0.40Mn, 0.01P, 0.01S, 15.50Cr, 4.50Al, 3.00Fe, 0.005-0.01Y, 0.005-0.01Zr). The influence of different pass deformation amount on the mechanical properties of Ni-Cr-Al alloy was studied. The experimental results show that the tensile strength, yield strength and Vickers hardness of the alloy increase gradually with the increase of accumulated cold drawing deformation, and the area reduction and elongation decrease gradually. When the deformation amount increases to a certain extent, the mechanical properties of alloy basically do not change.When the cumulative deformation of Ni-Cr-Al alloy reaches 78.7%, its performance is the best. The tensile strength at room temperature, yield strength, section shrinkage, elongation and Vickers hardness of Ni-Cr-Al alloy are 1 449 MPa, 1 130 MPa, 45%, 10% and 476, respectively.

Key words: Ni-Cr-Al Alloy; , Cold-Drawing; , Deformation Amount; , Mechanical Property

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