| 渗碳20CrMnTi温变形超细晶粒的形成机制 |
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| 引用本文： | 张治民,杨卓越,冯再新,李硕本,郑炀曾. 渗碳20CrMnTi温变形超细晶粒的形成机制[J]. 塑性工程学报, 2002, 9(2): 32-35 |
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| 作者姓名： | 张治民 杨卓越 冯再新 李硕本 郑炀曾 |
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| 作者单位： | 1. 华北工学院,太原,030051
2. 燕山大学,秦皇岛,066004 |
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| 基金项目： | 教育部骨干教师资助项目(MP2000512);山西省自然科学基金资助项目(19991060). |
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| 摘 要： | 研究了渗碳 2 0CrMnTi钢温变形过程中微观组织演化规律 ,结果表明 :通过温变形 ,渗碳 2 0CrMnTi钢的晶粒由 16 μm～ 2 0 μm超细化到 2 μm～ 3μm ,甚至 1μm以下 ;晶界区域局部变形和晶界滑动控制晶粒的细化 ;而变形参数 ,尤其是应变速率控制晶界区域局部变形和晶界滑动
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| 关 键 词： | 渗碳 20CrMnTi钢 温变形 晶粒超细化 |
| 修稿时间： | 2002-03-08 |
The formation mechanisms of ultrafine grain of carburized 20CrMnTi steel during warm deformation |
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| ZHANG Zhi|min YANG Zhuo|yue FENG Zai|xin. The formation mechanisms of ultrafine grain of carburized 20CrMnTi steel during warm deformation[J]. Journal of Plasticity Engineering, 2002, 9(2): 32-35 |
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| Authors: | ZHANG Zhi|min YANG Zhuo|yue FENG Zai|xin |
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| Abstract: | The microstructural evolution of carburized 20CrMnTi steel, has been investigated during warm deformation The results show that the grains with size of 16μm～20μm were refined to 2μm～3μm,even less than 1μm during deformation The form of ultrafine grains was controlled by both the grain boundary sliding and local deformation of materials near grain boundary The grain boundary sliding and local deformation depended on the deformed parameters, especially the strain rates |
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| Keywords: | carburization 20CrMnTi steel warm deformation grain ultra|refinement |
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