| 热处理工艺对GCr18Mo钢组织及硬度的影响 |
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| 引用本文： | 赵莉萍,张慧敏,陆立伟,王海燕.热处理工艺对GCr18Mo钢组织及硬度的影响[J].包头钢铁学院学报,2009,28(1). |
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| 作者姓名： | 赵莉萍 张慧敏 陆立伟 王海燕 |
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| 作者单位： | 内蒙古科技大学,材料与冶金学院,内蒙古,包头,014010
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| 基金项目： | 内蒙古高等学校科学研究项目 |
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| 摘 要： | 对GCr18Mo钢进行了淬火+回火及等温淬火热处理,并对不同热处理工艺下GCr18Mo钢的显微组织和硬度值进行了分析比较.通过分析实验结果得出:GCr18Mo钢经930℃淬火180℃回火后的硬度值低于经860℃淬火220℃回火后的硬度值,两种热处理的组织均为回火马氏体+碳化物+残余奥氏体.GCr18Mo钢在230℃等温淬火处理时,得到下贝氏体组织,其形态由单个细针转变到草丛堆状.GCr18Mo钢经930℃加热230℃等温130 min后的硬度值明显低于经870℃加热230℃等温30 min的硬度值.
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| 关 键 词： | GCr18Mo钢 下贝氏体 淬火+回火 等温淬火 |
Effect of heat treatment processes on microstructure and hardness of GCr18Mo steel |
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| ZHAO Li-ping,ZHANG Hui-min,LU Li-wei,WANG Hai-yan.Effect of heat treatment processes on microstructure and hardness of GCr18Mo steel[J].Journal of Baotou University of Iron and Steel Technology,2009,28(1). |
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| Authors: | ZHAO Li-ping ZHANG Hui-min LU Li-wei WANG Hai-yan |
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| Affiliation: | Material and Metallurgy School;Inner Mongolia University of Science and Technology;Baotou 014010;China |
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| Abstract: | The heat treatment of quenching,tempering and isothermal quenching process was used on GCr18Mo steel.Meanwhile,the microscopic structure and the hardness value of GCr18Mo steels were analyzed and compared under different heat treatment processes.It is found that the hardness value of GCr18Mo steels quenched at 930 ℃ and tempered at 180 ℃ is lower than GCr18Mo steels quenched at 860 ℃and tempered at 220 ℃.The microscopic structures in both heat treatment proesses are tempering martensite+carbide+residual aus... |
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| Keywords: | GCr18Mo steel lower bainite quenching and temper isothermal quenching |
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