韩文奎,张彦敏,王要利,葛学元,宋克兴

• 1:河南科技大学材料科学与工程学院
• 2:河南省有色金属试验钢科学与加工技术点实验室
• 3:有色金属共性技术河南省协同创新中心
• 4:北京机科国创轻量化科学研究院有限公司

摘要(Abstract)：

采用扫描电镜(SEM)、洛氏硬度计、电子拉伸试验机和夏比冲击摆锤等分析了4Cr5MoSiV1Ti钢经Q-P-T(淬火+碳分配+回火)热处理后的组织性能。结果表明:当碳配分温度为400℃和碳配分时间为3 min时,试验钢的冲击韧性达到26.25 J·cm~(-2),碳配分时间增加到20 min和60 min,其强度和硬度均呈上升趋势;当碳配分温度为370℃和碳配分时间为3 min时,试验钢的硬度值为49.66 HRC,冲击韧性为25 J·cm~(-2),断面收缩率为51.2%;当碳配分温度升高到400℃和430℃,试验钢的强度提高,冲击韧性和断面收缩率呈先上升后下降的趋势。

关键词(KeyWords)： Q-P-T工艺;4Cr5MoSiV1Ti钢;性能

Abstract:

Keywords:

基金项目(Foundation): 国家重点研发计划(2016YFB0300400);; 河南省杰出人才创新基金(182101510003);; 河南省创新型科技团队(C20150014)

作者(Author): 韩文奎,张彦敏,王要利,葛学元,宋克兴

DOI: 10.13289/j.issn.1009-6264.2020-0490

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