| 脱碳深度对60Si2CrVAT弹簧钢疲劳性能的影响 |
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| 引用本文： | 安丽乔,刘玉宝,刘德义,刘世程.脱碳深度对60Si2CrVAT弹簧钢疲劳性能的影响[J].大连铁道学院学报,2009(3):52-55. |
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| 作者姓名： | 安丽乔 刘玉宝 刘德义 刘世程 |
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| 作者单位： | 大连交通大学材料科学与工程学院;大连华锐集团有限公司热处理厂; |
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| 摘 要： | 研究了60Si2CrVAT弹簧钢在不同加热温度、保温时间下的脱碳行为及其对疲劳性能的影响．结果表明，脱碳层厚度随着加热温度的升高、保温时间的延长而增加．淬火温度为860℃，保温时间为40min时，脱碳层深度为0．06mm，保温时间延长至640min，脱碳层深度增加到0．30mm,对中18him的60Si2CrVAT弹簧钢试样，在淬火温度为860℃、脱碳层深度达到0．2mm时，疲劳寿命才明显降低．
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| 关 键 词： | 弹簧钢 脱碳深度 疲劳寿命 |
Effect of Practical Decarburized Depth on Fatigue Property of 60Si2CrVAT Spring Steel |
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| AN Li-qiao,LIU Yu-bao,LIU De-yi,LIU Shi-cheng.Effect of Practical Decarburized Depth on Fatigue Property of 60Si2CrVAT Spring Steel[J].Journal of Dalian Railway Institute,2009(3):52-55. |
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| Authors: | AN Li-qiao LIU Yu-bao LIU De-yi LIU Shi-cheng |
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| Institution: | AN Li-qiao1,LIU Yu-bao2,LIU De-yi1,LIU Shi-cheng1(1.School of Materials Science , Engineering,Dalian Jiaotong University,Dalian 116028,China,2.Heat Treatment Factory,Dalian Huarui Joint Stock Co.,Ltd.,Dalian 116035,China) |
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| Abstract: | Decarburation of 60Si2CrVAT spring steel and its effect on fatigue property were studied at different heat treatment temperatures and holding times. The results show that practical decarburized depth, is increased with the increase in holding time. When the steel is treated at 860℃ for 40 min,the decarburation depth is 0.06 mm. After the holding time prolong to 640 min, the decarburation depth increases to 0.30 mm. Its fatigue life is reduced remarkablely as the decarburation of 60Si2CrVAT spring steel with a diameter of 18 mm reaches 0.2 mm. |
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| Keywords: | spring steel practical decarburized depth fatigue life |
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