| J75不锈钢淬火应力的X射线衍射分析 |
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| 引用本文： | 孙光爱,陈波,吴二冬,李秀艳.J75不锈钢淬火应力的X射线衍射分析[J].理化检验(物理分册),2009,45(2):89-93. |
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| 作者姓名： | 孙光爱 陈波 吴二冬 李秀艳 |
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| 作者单位： | 孙光爱,陈波,SUN Guang-ai,CHEN Bo(中国工程物理研究院,核物理与化学研究所,绵阳,621900;四川大学,原子与分子物理研究所,成都,610065);吴二冬,李秀艳,WU Er-dong,LI Xiu-yan(中国科学院,金属研究所,沈阳,110016)
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| 基金项目： | 致谢：感谢邯郸爱斯特应力技术有限公司吕克茂高级工程师提供的试验条件和有益讨论. |
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| 摘 要： | 利用铬靶X射线在侧倾结合固定ψ法基础上对J75不锈钢的（311）面进行了淬火应力测量，得到了不同淬火温度下J75合金试样中心点的残余应力值和近表面微应变效应。结果表明：试样表面残余压应力值在-400～-650MPa,最大值出现在淬火温度为700℃左右；淬火使衍射峰半高宽由1．25°增加至1．4°以上，显著增加了J75合金的位错等缺陷。受淬火瞬时热应力分布影响，越靠近试样表面衍射峰的宽化越严重。
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| 关 键 词： | J75不锈钢 X射线衍射 残余应力 |
Stress Analysis of J75 Stainless Steel Aftrer Quenching by X-ray Diffraction |
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| SUN Guang-ai,CHEN Bo,WU Er-dong,LI Xiu-yan.Stress Analysis of J75 Stainless Steel Aftrer Quenching by X-ray Diffraction[J].Physical Testing and Chemical Analysis Part A:Physical Testing,2009,45(2):89-93. |
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| Authors: | SUN Guang-ai CHEN Bo WU Er-dong LI Xiu-yan |
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| Affiliation: | 1.Institute of Nuclear Physics and Chemistry;CAEP;Mianyang 621900;China;2.Institute of Atomic and Molecular Physics;Sichuan University;Chengdu 610065;3.Institute of Metal Research;CAS;Shenyang 110016;China |
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| Abstract: | Based on the side tilt and fix ψ method, the （311） plane of quenched J75 stainless steel was measured by X-ray diffraction. The residual stress and micro strain effects of J75 stainless steel surface center in different quenching temperatures were determined. The measurement results showed that the compressed residual stress in the sample surface was between--400 MPa and -650 MPa, the maximal value appeared when quenching temperature was about 700℃. The quenching also causced the increase of FWHM of diffraction peaks from 1.25°to above 1. 4°, so a lot of dislocations and other defect developed and according to the instantaneous heat stress distribution, the nearer the surface was, the larger the diffraction line broadening was. |
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| Keywords: | J75 stainless steel X-ray diffraction residual stress diffraction line broadening |
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