张海峰,杨豪,韩顺,厉勇,王春旭,吴波

• 1:福州大学先进制造学院
• 2:钢铁研究总院有限公司特殊钢研究院
• 3:西北工业大学重庆科创中心

摘要(Abstract)：

采用扫描电镜(SEM)、能谱仪(EDS)、透射电镜(TEM)和X射线衍射(XRD)等研究了淬火温度对N63钢组织及性能的影响。结果表明：当淬火温度低于1050℃时，N63钢中观察到M_(23)C_6型未溶相；随淬火温度升高，N63钢中未溶相逐渐溶解，晶粒有长大趋势；N63钢在900～1150℃范围内淬火时(淬火后还进行了深冷及回火处理),随着淬火温度的升高，其抗拉强度先升高后降低，在1000℃淬火时达到峰值，为1479 MPa,屈服强度整体上呈降低趋势，在950℃淬火时达到峰值，为1209 MPa,冲击吸收能量先升高后略有降低，在1100℃淬火时达到峰值，为148 J。N63钢在1100℃淬火及深冷和回火处理后，碳化物完全溶解且组织完全奥氏体化，具有最佳的强韧性匹配，其抗拉强度为1470 MPa、屈服强度为1136 MPa,冲击吸收能量为148 J。

关键词(KeyWords)： N63钢;淬火处理;力学性能;微观组织;M_(23)C_6

Abstract:

Keywords:

基金项目(Foundation): 国家重点研发计划(2022YFB3705202)

作者(Author): 张海峰,杨豪,韩顺,厉勇,王春旭,吴波

DOI: 10.13289/j.issn.1009-6264.2022-0527

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