鲍玉坤,马金锁,吴萌,谢家成,赵秀明

• 1:南京工程学院材料工程学院
• 2:江苏省先进结构材料与应用技术重点实验室
• 3:南京福贝尔五金制品有限公司

摘要(Abstract)：

采用电子万能试验机和冲击试验机测试了耐海洋大气腐蚀螺栓钢经不同工艺淬火、回火后的拉伸、冲击等力学性能,利用扫描电镜(SEM)分析试验钢在不同工艺下的冲击断口形貌,并采用J-MatPro软件计算试验钢奥氏体临界转变温度点。结果表明:试验钢经940℃油淬及570℃回火后的力学性能最佳。与580℃回火试样相比,试验钢在570℃回火时具有更高的韧性。结合冲击断口以及软件计算结果分析可知,试验钢中Ni含量较高且存在偏析,会导致局部区域A_1点降到600℃以下,使得试验钢在580℃回火时局部奥氏体化,冷却时形成硬脆的马氏体,造成冲击性能下降。

关键词(KeyWords)： 耐海洋大气腐蚀螺栓钢;回火温度;冲击性能;偏析;马氏体

Abstract:

Keywords:

基金项目(Foundation): 江苏省研究生科研与实践创新计划(SJCX20-0707);; 南京工程学院大学生科技创新基金项目(TB202017027)

作者(Author): 鲍玉坤,马金锁,吴萌,谢家成,赵秀明

DOI: 10.13289/j.issn.1009-6264.2020-0411

参考文献(References)：

• [1] Morcillo M,Díaz I,Cano H,et al.Atmospheric corrosion of weathering steels.Overview for engineers.Part I:Basic concepts[J].Construction and Building Materials,2019,213:723-737.
• [2] Cano H.Atmospheric corrosion of weathering steels.Overview for engineers.Part II:Testing,inspection,maintenance[J].Construction and Building Materials,2019,222:750-765.
• [3] 陶晓燕，沈家华，史志强.我国钢桥高强度螺栓连接的发展历程及展望[J].铁道建筑，2017,57(9):1-4.TAO Xiao-yan,SHEN Jia-hua,SHI Zhi-qiang.Development history and prospect of high-strength bolt connection of steel bridge in China[J].Railway Architecture,2017,57(9):1-4.
• [4] 刘浩然.热处理工艺对耐候螺栓钢组织和力学性能的影响[D].秦皇岛：燕山大学，2018.LIU Hao-ran.Effect of heat treatment process on microstructure and mechanical properties of weather-resistant bolt steel[D].Qinhuangdao:Yanshan University,2018.
• [5] 惠卫军，董瀚，王毛球，等.回火温度对Cr-Mo-V系高强度钢力学性能的影响[J].金属学报，2002(10):1009-1014.HUI Wei-jun,DONG Han,WANG Mao-qiu,et al.Effect of tempering temperature on mechanical properties of Cr-Mo-V series high-strength steel[J].Acta Metallurgica Sinica,2002(10):1009-1014.
• [6] 徐慧，李天生.回火温度对Nb微合金化NM500钢组织和性能的影响[J].金属热处理，2020,45(9):116-120.XU Hui,LI Tian-sheng.Effect of tempering temperature on microstructure and properties of Nb microalloyed NM500 steel[J].Heat Treatment of Metals,2020,45(9):116-120.
• [7] 凌纯，姚智颖.结构钢的回火脆性综述[J].热加工工艺，2018,47(2):11-14.LING Chun,YAO Zhi-ying.Review of tempering brittleness of structural steel[J].Hot Working Technology,2018,47(2):11-14.
• [8] 刘春泉，彭其春，范丹萍.NM360耐磨钢回火工艺优化的研究[J].热加工工艺，2018,47(4):212-214+219.LIU Chun-quan,PENG Qi-chun,FAN Dan-ping.Research on optimization of tempering process of NM360 wear resistant steel[J].Hot Working Technology,2018,47(4):212-214+219.
• [9] 郝凯冰.热处理对海洋工程用低碳合金钢组织和性能的影响[D].哈尔滨：哈尔滨工程大学，2018.HAO Kai-bing.Effect of heat treatment on microstructure and properties of low carbon alloy steel for marine engineering[D].Harbin:Harbin Engineering University,2018.
• [10] 顿亚鹏，杨伟，刘建永，等.回火温度对37CrMnMo钢冲击性能的影响[J].金属热处理，2020,45(2):193-196.DAN Ya-peng,YANG Wei,LIU Jian-yong,et al.Effect of tempering temperature on impact performance of 37CrMnMo steel[J].Heat Treatment of Metals,2020,45(2):193-196.
• [11] 孙奇，张立新，韦廷立，等.回火温度对1Cr11Ni2W2MoV钢冲击性能的影响[J].理化检验(物理分册),2017,53(3):165-168.SUN Qi,ZHANG Li-xin,WEI Ting-li,et al.Effect of tempering temperature on impact performance of 1Cr11Ni2W2MoV steel[J].Physical Testing and Chemical Analysis(Part A:Physical Testing),2017,53(3):165-168.
• [12] 林国标，赵攀，敖伟.回火温度对中碳合金钢4Cr5MoSiV1Nb组织和性能的影响[J].钢铁，2019,54(5):73-77.LIN Guo-biao,ZHAO Pan,AO Wei.Effect of tempering temperature on microstructure and properties of 4Cr5MoSiV1Nb medium carbon alloy steel[J].Iron and Steel,2019,54 (5):73-77.
• [13] 王剑星，杨钢，刘天模，等.Ni含量对0Cr17Ni4Cu4Nb钢中逆转变奥氏体的影响[J].热加工工艺，2010,39(20):9-11+15.WANG Jian-xing,YANG Gang,LIU Tian-mo,et al.Effect of Ni content on reversed austenite in 0Cr17Ni4Cu4Nb steel[J].Hot Working Technology,2010,39(20):9-11+15.
• [14] Zhai W Y,Pu B W,Sun L,et al.Influence of Ni content on the microstructure and mechanical properties of chromium carbide-nickel composites[J].Ceramics International,2020,46(7):8754-8760.
• [15] 赵晋斌，邱保文，田勇，等.Ni对高强船板钢显微组织及低温韧性的影响[J].轧钢，2020,37(4):12-16.ZHAO Jin-bin,QIU Bao-wen,TIAN Yong,et al.Effect of Ni on microstructure and low temperature toughness of high strength ship plate steel[J].Steel Rolling,2020,37(4):12-16.

文章评论(Comment)：