| 0Cr21Ni6Mn9N奥氏体不锈钢的应变强化行为 |
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| 引用本文： | 刘树勋,刘宪民,刘蕤,王春旭,邢峰. 0Cr21Ni6Mn9N奥氏体不锈钢的应变强化行为[J]. 钢铁研究学报, 2005, 17(4): 40-44 |
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| 作者姓名： | 刘树勋 刘宪民 刘蕤 王春旭 邢峰 |
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| 作者单位： | 钢铁研究总院结构材料研究所,北京,100081;钢铁研究总院结构材料研究所,北京,100081;钢铁研究总院结构材料研究所,北京,100081;钢铁研究总院结构材料研究所,北京,100081;钢铁研究总院结构材料研究所,北京,100081 |
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| 摘 要： | 研究了不同氮含量的0Cr21Ni6Mn9N奥氏体不锈钢的塑性流变行为。结果表明，其形变强化特性可用Ludwigson模型来表示。钢在不同的应变下表现出不同的塑性流变行为，存在一个瞬变应变。当应变量低于它时，流变行为与Ludwik方程存在一个正偏差；而应变量高于它时，则符合Ludwik模型。造成这一差异的主要原因是位错滑移模式发生了改变，低于瞬变应变时为单系滑移，高于瞬变应变时为多系滑移。氮对位错滑移模式的影响主要表现为对瞬变应变的影响。随氮含量的增加，瞬变应变被推向更高的水平，这意味着氮原子使位错在更大的应变下才产生多系滑移和交滑移。
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| 关 键 词： | 奥氏体不锈钢 加工硬化 氮 0Cr21Ni6Mn9N |
| 文章编号： | 1001-0963(2005)04-0040-05 |
Work-Hardening Behavior of 0Cr21Ni6Mn9N Austenitic Stainless Steel |
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| LIU Shu-xun,LIU Xian-min,LIU Rui,WANG Chun-xu,XING Feng. Work-Hardening Behavior of 0Cr21Ni6Mn9N Austenitic Stainless Steel[J]. Journal of Iron and Steel Research, 2005, 17(4): 40-44 |
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| Authors: | LIU Shu-xun LIU Xian-min LIU Rui WANG Chun-xu XING Feng |
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| Abstract: | The plastic flow behavior of 0Cr21NI6Mn9N austenitic stainless steel containing different nitrogen was studied. The work-hardening behavior of the steel can be modeled by Ludwigson model. There is a transient L, below which the deviation appears and above which the Ludwik model is available. This transient corresponds to the change of dislocation slip mode from planar at less than L to multiple at higher than L. The influence of nitrogen on dislocation slip mode is through L, which is moved to higher stain level with the increase of nitrogen content. |
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| Keywords: | austenitic stainless steel work-hardening nitrogen 0Cr21Ni6Mn9N |
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