| 形变对铁铜合金时效析出的影响 |
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| 引用本文： | 李闯,王学敏,尚成嘉,郑长安,刘学一,贺信莱.形变对铁铜合金时效析出的影响[J].北京科技大学学报,2008,30(12). |
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| 作者姓名： | 李闯 王学敏 尚成嘉 郑长安 刘学一 贺信莱 |
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| 作者单位： | 1. 北京科技大学材料科学与工程学院,北京,100083
2. 首钢(集团)公司技术研究院,北京,100041 |
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| 基金项目： | 国家自然科学基金资助项目
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| 摘 要： | 对铁铜合金分别进行50%和80%冷变形,利用金相显微镜以及高分辨投射电镜研究形变热处理过程中的微观组织与沉淀析出,分析形变量对时效析出的影响. 结果表明:变形有助于第二相的析出,大的冷变形量时沉淀相粒子形成的速率更快,所占体积分数更大. 优先析出为富铜过渡相,这种富铜过渡相所形成的GP区对合金起强化作用,其后随时效时间延长这种富铜相逐渐转转变成ε-Cu.
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| 关 键 词： | 铁铜合金 时效 形变热处理 析出 GP区 |
Influence of thermo-mechanical processing on aging precipitation of Fe-Cu alloys |
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| LI Chuang,WANG Xuemin,SHANG Chengjia,ZHENG Chang'an,LIU Xueyi,HE Xinlai.Influence of thermo-mechanical processing on aging precipitation of Fe-Cu alloys[J].Journal of University of Science and Technology Beijing,2008,30(12). |
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| Authors: | LI Chuang WANG Xuemin SHANG Chengjia ZHENG Chang'an LIU Xueyi HE Xinlai |
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| Institution: | LI Chuang1),WANG Xuemin1),SHANG Chengjia1),ZHENG Chang\'an1),LIU Xueyi2),HE Xinlai1)1)School of Materials Science , Engineering,University of Science , Technology Beijing,Beijing 100083,China2)Shougang Technical Research Institute,Shougang Iron , Steel Group Co.,Beijing 100041,China |
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| Abstract: | The aging precipitation of a Fe-Cu alloy cold-deformed 50% and 80% was studied.Optical microscope and HREM were employed to observe the microstructure and precipitation in thermo-mechanical processing,and the effect of cold deformation on the aging precipitation was analyzed.The results show that cold deformation is helpful to the precipitation of second phase,after a large quantity of cold deformation the precipitation is accelerated and the bulk volume of second phase becomes greater.Copper-rich transitio... |
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| Keywords: | Fe-Cu alloy aging thermo-mechanical processing precipitation GP zone |
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