| Q&P工艺处理低碳CrNi3Si2MoV钢中马氏体的研究 |
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| 引用本文： | 王存宇,时捷,曹文全,惠卫军,王毛球,董瀚.Q&P工艺处理低碳CrNi3Si2MoV钢中马氏体的研究[J].金属学报,2011(6). |
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| 作者姓名： | 王存宇 时捷 曹文全 惠卫军 王毛球 董瀚 |
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| 作者单位： | 钢铁研究总院结构材料研究所; |
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| 基金项目： | 国家重点基础研究发展计划项目2010CB630803; 国家高技术研究发展计划项目2009AA033401资助~~ |
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| 摘 要： | 通过SEM,TEM,EBSD和纳米硬度等多种手段对经Q&P(quenching and partitioning)工艺处理的低碳CrNi3Si2MoV钢中的马氏体进行了表征,并探讨马氏体在单轴拉伸过程中的作用.研究结果表明:一次马氏体发生了C配分和回火析出现象,容易腐蚀;二次马氏体呈淬火态特征,由1个马氏体领域构成,板条尺寸较小,约为0.1—0.2μm,C含量和纳米硬度均高于一次马氏体,在变形过程中能够协同组织变形,起到强化作用,而氧化物夹杂和大尺寸的析出物是微裂纹产生和扩展的主要原因.
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| 关 键 词： | 马氏体 残留奥氏体 Q&P工艺 力学性能 高强度钢 |
STUDY ON THE MARTENSITE IN LOW CARBON CrNi3Si2MoV STEEL TREATED BY Q&P PROCESS |
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| WANG Cunyu,SHI Jie,CAO Wenquan,HUI Weijun,WANG Maoqiu,DONG Han Institute for Structural Materials,Central Iron & Steel Research Institute,Beijing.STUDY ON THE MARTENSITE IN LOW CARBON CrNi3Si2MoV STEEL TREATED BY Q&P PROCESS[J].Acta Metallurgica Sinica,2011(6). |
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| Authors: | WANG Cunyu SHI Jie CAO Wenquan HUI Weijun WANG Maoqiu DONG Han Institute for Structural Materials Central Iron & Steel Research Institute Beijing |
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| Affiliation: | WANG Cunyu,SHI Jie,CAO Wenquan,HUI Weijun,WANG Maoqiu,DONG Han Institute for Structural Materials,Central Iron & Steel Research Institute,Beijing 100081 |
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| Abstract: | The martensite in low carbon CrNi3Si2MoV steel treated by Q&P(quenching and partitioning)process was characterized by means of SEM,TEM,EBSD and nano intender.The effect of martensite on uniaxial tension behaviors was discussed.The results showed that initial martensite phase formed at the first quenching step,whose carbon content was lowered due to its carbon diffusion into untransformed austenite during partitioning step.However,the martensite phase formed at the final quenching step consisted of only one ... |
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| Keywords: | martensite retained austenite Q&P process mechanical property high strength steel |
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