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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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VC沉淀粒子对TWIP钢加工硬化行为的影响
DOI: 10.3724/SP.J.1037.2012.00094, PP. 1067-1073
Keywords: TWIP钢,加工硬化速率,VC沉淀粒子,形变孪晶
Abstract:
对Fe-Mn-C系2种TWIP钢Fe22Mn0.6C和Fe22Mn0.6C0.19V的显微组织、力学性能及加工硬化行为进行了研究.结果表明,经900℃固溶处理后的Fe22Mn0.6C0.19V钢和经800℃固溶处理的Fe22Mn0.6C钢具有晶粒尺寸相近的奥氏体组织;Fe22Mn0.6C0.19V钢在真应变ε>0.14后进入加工硬化速率平台区,而Fe22Mn0.6C钢则在ε>0.12后即进入加工硬化速率平台区;Fe22Mn0.6C0.19V钢在ε>0.21以后结束了加工硬化速率平台区,其平台区明显较Fe22Mn0.6C钢短;Fe22Mn0.6C0.19V钢加工硬化速率平台在ε>0.21以后结束是由VC沉淀粒子与TWIP钢形变孪晶相互作用引起的,VC沉淀粒子对于TWIP钢形变孪晶的产生及增殖都有明显的抑制作用.
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