| 23MnNiCrMo煤机链条钢淬火回火转变的研究 |
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| 引用本文： | 赵莉萍,刘宗昌,杨慧,李强.23MnNiCrMo煤机链条钢淬火回火转变的研究[J].兵器材料科学与工程,2002,25(1):11-13,20. |
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| 作者姓名： | 赵莉萍 刘宗昌 杨慧 李强 |
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| 作者单位： | 1. 包头钢铁学院,材料系,包头,014010;2. 抚顺特殊钢有限,公司,抚顺,113001 |
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| 摘 要： | 将23MnNiCrMo钢奥氏体化后分别在空气、水、油中冷却.随后将水淬和油淬的试样进行不同温度和不同保温时间的回火.研究结果表明,该钢合适的淬火温度为860℃,油淬和水淬的组织为板条马氏体+少量下贝氏体+残余奥氏体+剩余碳化物.由于有合金元素的作用,在中温回火时并不得到完全的回火屈氏体组织,而是以回火马氏体为主,还有贝氏体及剩余碳化物的复合组织.
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| 关 键 词： | 23MnNiCrMo钢 淬火 回火 复合组织 |
| 文章编号： | 1004-244X(2002)01-0011-03 |
study on quenching and tempering transformation of 23Mn NiCrMo steel |
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| ZHAO Li-ping ,LIU Zong-chang ,YANG Hui ,LI Qiang.study on quenching and tempering transformation of 23Mn NiCrMo steel[J].Ordnance Material Science and Engineering,2002,25(1):11-13,20. |
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| Authors: | ZHAO Li-ping LIU Zong-chang YANG Hui LI Qiang |
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| Affiliation: | ZHAO Li-ping 1,LIU Zong-chang 1,YANG Hui 1,LI Qiang 2 |
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| Abstract: | Quenching and tempering transformations of 23MnNiCrMo steel for the chains of coal machines were investigated. After being heated up to austenite range, the steel pieces were cooled separately in air, water and oil, then the cooled steel pieces were tempered at different temperature and time. It is showed that, when the quenching temperature is 860?℃, the microstructure of the steel quenched by water and oil are lath martensite + a little bainite + some residual austenite + some residual cabide. As the effect of the alloy elements, the tempering transformation of this steel is diferent from carbon-steel.When tempered at mid-temperature, the microstructure of this steel is transformed into a kind of composite structure composed mainly of tempering martensite with some bainite and residual carbide instead of complete tempering troostite structure. |
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| Keywords: | MnNiCrMo steel quenching tempering composite structure |
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