| 加钛的镍铬钢回火脆性的锑非平衡晶界偏聚机理 |
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| 引用本文： | 谢颖,郭二军,李庆芬,杨尚林,李莉,郑卫,金国,张菊,胡艳华,刘二保. 加钛的镍铬钢回火脆性的锑非平衡晶界偏聚机理[J]. 钢铁研究学报, 2006, 18(1): 39-43 |
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| 作者姓名： | 谢颖 郭二军 李庆芬 杨尚林 李莉 郑卫 金国 张菊 胡艳华 刘二保 |
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| 作者单位： | 天津市塘沽区河华里11栋302号,天津,300450 |
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| 摘 要： | 回火脆性的溶质非平衡晶界偏聚机理的本质是溶质非平衡晶界偏聚的临界时间引起回火脆性的临界时间.在此基础上,研究了加钛的镍铬钢回火脆性的临界时间、回火脆性的极大值和充分回火后2.7J脆-韧转变温度随回火温度的变化,并结合锑的非平衡晶界偏聚量的测量结果,论述了加钛的镍铬钢中回火脆性的锑的非平衡晶界偏聚机理.
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| 关 键 词： | 回火脆性 非平衡晶界偏聚 临界时间 镍铬 钢 |
| 文章编号： | 1001-0963(2006)01-0039-05 |
| 收稿时间： | 2004-08-03 |
Mechanism of Non-Equilibrium Grain-Boundary Sb Segregation for Temper Embrittlement of Ti-Doped NiCr Steel |
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| XIE Ying,GUO Er-jun,LI Qing-fen,YANG Shang-lin,LI Li,ZHENG Wei,JIN Guo,ZHANG Ju,HU Yan-hua,LIU Er-bao. Mechanism of Non-Equilibrium Grain-Boundary Sb Segregation for Temper Embrittlement of Ti-Doped NiCr Steel[J]. Journal of Iron and Steel Research, 2006, 18(1): 39-43 |
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| Authors: | XIE Ying GUO Er-jun LI Qing-fen YANG Shang-lin LI Li ZHENG Wei JIN Guo ZHANG Ju HU Yan-hua LIU Er-bao |
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| Affiliation: | 1. No. 302, Building 11, Tanggu District, Tianjin 300450, Chinas 2. School of Materials Science and Engineering, Harbin University of Science and Technology, Harbin 150080, Heilongjiang, China; 3. School of Mechanical and Electronic Engineering, Harbin Engineering University, Harbin 150001, Heilongjiang, China; 4. Department of Mechanical Engineering, Armored Force Engineering Institute, Beijing 100072, China |
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| Abstract: | The most characteristic aspect of non-equilibrium grain boundary segregation mechanism of temper embrittlement is that the critical time in a non-equilibrium segregation isotherms will induce a critical time in the relative temper embrittlement isotherms. On the basis of this concept and measured Sb grain-boundary segregation at different temperatures, the non equilibrium Sb segregation mechanism for temper embrittlement of Ti-doped NiCr steel is discussed according to the relationships of ageing temperature to maximum temper embrittlement, critical time of temper embrittlement, and temper embrittlement after long enough ageing. |
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| Keywords: | temper embrittlement non-equilibrium grain-boundary segregation critical time NiCr steel |
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