| 高强度弹簧钢60Si2CrVAT热处理工艺优化试验 |
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| 引用本文： | 李秋志,高国华,周立新,杨娥,陈方玉,陈家新.高强度弹簧钢60Si2CrVAT热处理工艺优化试验[J].特殊钢,2012,33(2):49-50. |
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| 作者姓名： | 李秋志 高国华 周立新 杨娥 陈方玉 陈家新 |
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| 作者单位： | 1. 北京科技大学材料科学与工程学院,北京100083;湖北新冶钢有限公司技术中心,黄石435001
2. 湖北新冶钢有限公司技术中心,黄石,435001 |
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| 摘 要： | 用DIL850L相变仪φ4mm×10mm小试样模拟φ26mm 60Si2CrVAT钢（/%:0.60C、0.63Mn、1.50Si、1.08Cr、0.14V）870～950℃淬火试验。结果表明,随淬火温度提高,钢残余碳化物减少,950℃淬火晶粒长大明显,择优选取910℃为淬火温度。生产检验条件下,采用910℃40 min淬火,420℃90 min回火,可获得较佳的综合力学性能-即抗拉强度（Rm）1940 MPa,屈服强度(Rp0.2)1 740 MPa,伸长率（A5）9.5%,断面收缩率（Z）36.5%。
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| 关 键 词： | 高强度弹簧钢60Si2CrVAT 淬火 回火 力学性能 |
A Test for Optimization of Heat Treatment Process of High Strength Spring Steel 60Si2CrVAT |
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| Li Qiuzhi
,
Gao Guohua
,
Zhou Lixin
,
Yang E
,
Chen Fangyu
,
Chen Jiaxin.A Test for Optimization of Heat Treatment Process of High Strength Spring Steel 60Si2CrVAT[J].Special Steel,2012,33(2):49-50. |
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| Authors: | Li Qiuzhi Gao Guohua Zhou Lixin Yang E Chen Fangyu Chen Jiaxin |
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| Affiliation: | 1 School of Materials Science and Engineering,University of Science and Technology,Beijing 100083; 2 Technology Center,Hubei Xinyegang Co Ltd,Huangshi 435001 ) |
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| Abstract: | The quenching examination of φ26 mm rod of steel 60Si2CrVAT（/%:0.60C,0.63Mn,1.50Si, 1.08Cr,0.14V） at 870～950℃is simulated by DIL850L phase transition instrument with <Φ4 mm×10 mm small specimen. Simulated test results show that with quenching temperature increasing,the residual carbide in steel decreases,and quenching at 950℃the grains coarsen obvionsly,therefore the selected optimum heating temperature for quenching is 910℃.In condition of production examination,with optimum heat treatment process i.e.quenching at 910℃for 40 min and tempering at 420℃for 90 min,it is available for steel to get optimum comprehensive mechanical properties i.e.tensile strength Rm- 1 940 MPa,yield strength Rp0.2-1 740 MPa,elongation A5- 9.5%and reduction of area Z- 36.5%. |
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| Keywords: | High Strength Spring Steel 60SiCrVAT Quenching Tempering Mechanical Properties |
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