| 锰及热处理参数对中碳低合金耐磨钢组织与性能的影响 |
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| 引用本文： | 杨宝国.锰及热处理参数对中碳低合金耐磨钢组织与性能的影响[J].中国铸造装备与技术,2014(2):42-45. |
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| 作者姓名： | 杨宝国 |
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| 作者单位： | 济南铸造锻压机械研究所有限公司,山东济南250022 |
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| 摘 要： | 研究了Mn和热处理工艺对中碳低合金耐磨铸钢组织和力学性能的影响。结果表明,实验钢的最佳奥氏体化温度为870℃,实验钢经不同温度淬火、低温回火后,钢的硬度变化并不显著,在46~54 HRC之间;w(Mn)1.5%时经870℃奥氏体化+等温淬火和200℃回火热处理,试验钢回火后的组织主要为回火马氏体,材料获得最佳的综合力学性能,是矿用挖掘机铲齿最好材质之一。
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| 关 键 词： | 低合金钢 Mn 热处理 显微组织 机械性能 |
Influence of Mn and Heat Treatment on Microstructure and Mechanical Properties of a Medium-carbon-low-alloy Cast Steel |
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| Yang Baoguo.Influence of Mn and Heat Treatment on Microstructure and Mechanical Properties of a Medium-carbon-low-alloy Cast Steel[J].China Foundry Machinery & Technology,2014(2):42-45. |
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| Authors: | Yang Baoguo |
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| Affiliation: | Yang Baoguo (Jinan Foundry and Metalforming Machinery Research Institute Company Limited, Jinan 250022, Shandong , China) |
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| Abstract: | The influences of Mn and heat-treatment on microstructure and mechanical properties of mediumcarbon-low-alloy wear-resistant cast steel were investigated. The results show that the best quenching temperature is 870 ℃,the hardness is not significantly changed （46-54 HRC） through different quenching and tempering temperature. The optimal impact toughness of the tested steel can be obtaind by quenching at 870 ℃ and tempering at 200℃. Microstructure finds that steel after tempering main matrix of tempered martensite. |
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| Keywords: | Medium-carbon-low-alloy Cast Steel Mn content Heat treatment Martensite Hardness Impact toughness |
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