| Fe—Mn—Al—Cr系奥氏体热强钢持久缺口脆性的研究 |
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| 引用本文： | 张彦生.Fe—Mn—Al—Cr系奥氏体热强钢持久缺口脆性的研究[J].大连铁道学院学报,1992,13(2):51-56. |
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| 作者姓名： | 张彦生 |
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| 作者单位： | 大连铁道学院材料工程系 |
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| 摘 要： | 利用光滑与缺口试样高温持久试验、沉淀相分析及电子金相等方法,研究了Fe-Mn-Al-Cr 基奥氏体热强钢的高温持久缺口脆性.实验结果表明,通过优化 C 与 V 及 Nb 含量的配比和选择适宜的时效温度,可以消除持久缺口敏感性.
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| 关 键 词： | 耐热钢 缺口韧性 合金钢 |
A Study on the Notch Brittleness of Stress Rupture in Fe-Mn-Al-Cr Austenitic Heat-Resisting Steels |
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| Zhang Yansheng.A Study on the Notch Brittleness of Stress Rupture in Fe-Mn-Al-Cr Austenitic Heat-Resisting Steels[J].Journal of Dalian Railway Institute,1992,13(2):51-56. |
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| Authors: | Zhang Yansheng |
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| Institution: | Dep.of Matl.Eng. |
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| Abstract: | Notch-brittleness in Fe-Mn-Al-Cr host austenitic heat-resisting steals when stress-rupture tested at high temperature has been studied by Smooth/Notched stress rupture test,analysis of precipitating pahse and electron-metallographic examination.The results show that the Notch-brittleness of stress rupture could be eliminated by the appropriate combination of C V and Nb content and correct aging temperature. |
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| Keywords: | heat resistant steels notch toughness notch sensitivity/Fe-Mn-Al-Cr alloy steels |
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