| 40Cr钢淬火工艺研究 |
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| 引用本文： | 胡世菊,时海芳.40Cr钢淬火工艺研究[J].煤矿机械,2008,29(6):92-94. |
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| 作者姓名： | 胡世菊 时海芳 |
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| 作者单位： | 1. 辽宁广播电视大学阜新分校,辽宁,阜新,123000
2. 辽宁工程技术大学,辽宁,阜新,123000 |
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| 摘 要： | 研究了完全淬火态40Cr和退火态40Cr进行亚温淬火和低温回火后的组织和性能,确立了920℃淬火+790℃淬火+200℃回火最佳亚温淬火工艺,与常规淬火及低温回火相比较强度bσ提高9%,塑性δ提高16%,韧性αk提高25%,硬度提高6%,磨损质量损耗下降67%。
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| 关 键 词： | 40Cr钢 亚温淬火 低温回火 强韧性 |
| 文章编号： | 1003-0794(2008)06-0092-03 |
| 修稿时间： | 2008年3月1日 |
Study on Quenching for 40Cr Steel |
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| HU Shi-ju,SHI Hai-fang.Study on Quenching for 40Cr Steel[J].Coal Mine Machinery,2008,29(6):92-94. |
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| Authors: | HU Shi-ju SHI Hai-fang |
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| Abstract: | The effects of sub-temperature quenching and low tempering on the quenched 40Cr steel and annealed 40Cr steel were studied.The study shows that the best heat treatment process is 40Cr steel is pre-quenched at 920 ℃ and sub-temperature quenched at 790 ℃ and low tempered at 200 ℃.Compared with that of traditional quenching and low tempering treatment,the σb,δ,αk and hardness was increased 9%,16%,25% and 6% respectively,the wear mass loss quantity was decreased 67%. |
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| Keywords: | 40Cr steel sub-temperature quenching low tempering strength and toughness |
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