| Q-P(-T)工艺对35Si2Ni2钢组织和力学性能的影响 |
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| 引用本文： | 王存宇,时捷,刘苏,董瀚.Q-P(-T)工艺对35Si2Ni2钢组织和力学性能的影响[J].钢铁,2010,45(1). |
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| 作者姓名： | 王存宇 时捷 刘苏 董瀚 |
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| 作者单位： | 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"淬火-配分-(回火)"(Q-P(-T))工艺处理对35Si2Ni2钢显微组织和力学性能的影响,并与传统的淬火回火(Q-T)工艺进行比较,用SEM、TEM、XRD分析了微观组织。试验结果表明:相对于传统Q-T工艺,经Q-P工艺处理后得到了较多的残余奥氏体,强度水平稍有降低,而塑韧性明显提高,经Q-P工艺处理后再进行回火处理,残余奥氏体分解,析出ε碳化物,导致Q-P工艺处理钢的屈服强度升高,屈强比升高。
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| 关 键 词： | 马氏体钢 Q-P工艺 Q-T工艺 屈强比 残余奥氏体 |
Effect of Q-P(-T) Process on Microstructure and Mechanical Properties of 35Si2Ni2 Steel |
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| WANG Cun-yu,SHI Jie,LIU Su,DONG Han.Effect of Q-P(-T) Process on Microstructure and Mechanical Properties of 35Si2Ni2 Steel[J].Iron & Steel,2010,45(1). |
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| Authors: | WANG Cun-yu SHI Jie LIU Su DONG Han |
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| Affiliation: | Institute for Structural Materials;Central Iron & Steel Research Institute;Beijing 100081;China |
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| Abstract: | The effect of "Quenching-Partitioning-(Tempering)(Q-P(-T)) process on the microstructure and mechanical properties of 35Si2Ni2 steel were investigated,and compared them with traditional Quenching-Tempering(Q-T) process.Microstructure was studied by using SEM,TEM and XRD.The results show that samples treated by quenching-partitioning get more retained austenite compared with traditional quenching-tempering process,the strength decrease slightly,while the ductility and toughness improved markedly.Retained aus... |
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| Keywords: | martensitic steel Q-P process Q-T process yield ratio retained austenite |
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