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45钢表面电子束微熔抛光的性能和组织分析

王荣, 王优, 崔月, 李圣

王荣, 王优, 崔月, 李圣. 45钢表面电子束微熔抛光的性能和组织分析[J]. 焊接学报, 2019, 40(5): 113-119. DOI: 10.12073/j.hjxb.2019400137
引用本文: 王荣, 王优, 崔月, 李圣. 45钢表面电子束微熔抛光的性能和组织分析[J]. 焊接学报, 2019, 40(5): 113-119. DOI: 10.12073/j.hjxb.2019400137
WANG Rong, WANG You, CUI Yue, LI Sheng. Properties and microstructure of 45 steel surface processed by electron beam micro melting polishing[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2019, 40(5): 113-119. DOI: 10.12073/j.hjxb.2019400137
Citation: WANG Rong, WANG You, CUI Yue, LI Sheng. Properties and microstructure of 45 steel surface processed by electron beam micro melting polishing[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2019, 40(5): 113-119. DOI: 10.12073/j.hjxb.2019400137

45钢表面电子束微熔抛光的性能和组织分析

基金项目: 国家自然科学基金资助项目(51665009);广西自然科学基金重点资助项目(2017GXNSFDA198007)

Properties and microstructure of 45 steel surface processed by electron beam micro melting polishing

  • 摘要: 为显著改善45钢表面粗糙度及其综合力学性能. 文中采用电子束微熔抛光技术,对45钢表面进行电子束微熔抛光处理. 研究电子束抛光对表面粗糙度、改性层组织和硬度的影响,探讨了电子束扫描电流、扫描速度对表面粗糙度、改性层组织的影响规律. 结果表明,45钢经表面抛光处理后,表面粗糙度值由2.091 μm降到0.738 μm,降幅为64.7%;其表面改性层可分为抛光层区、热影响区和基体区;抛光层区的显微组织为针状马氏体,硬度为950 ~ 913 HV;热影响区的组织为针状马氏体和铁素体,硬度为855 ~ 280 HV;基体区的组织为珠光体和铁素体,硬度为244 ~ 204 HV. 电子束工艺参数对抛光后的表面粗糙度值影响显著,在满足抛光效果的条件下,改性层的厚度随电子束扫描电流的增加而增大,随扫描速度的增加而减小.
    Abstract: Process the surface of 45 steel was carried out in order to significantly improve the surface roughness and comprehensive mechanical properties of 45 steel using electron beam micro melting polishing technology. The influences of electron beam polishing on surface roughness, microstructure and hardness of the modified layer were studied. The influences of electron beam scanning current and scanning speed on surface roughness and microstructure of modified layer was also discussed. The results show that the surface roughness of 45 steel reduced from 2.091 μm to 0.738 μm. The decrease rate is 64.7%. The surface modification layer can be divided into the polishing zone, the heat affected zone and the matrix zone. The microstructure of the polishing layer is acicular martensite with 950 ~ 913 HV hardness. The microstructure of the heat affected zone are acicular martensite and ferrite with 855 ~ 280 HV hardness. The microstructure of the matrix zone are pearlite and ferrite with a hardness of 244 ~ 204 HV. The influence of electron beam processing parameters on the surface roughness after polishing is significant. Under the corresponding polish effect condition, thickness of the modified layer increases with the increasing of the scanning current of electron beam, and decreases with the increasing of scanning speed.
  • [1] Manladan S M, Yusof F, Ramesh S, et al. Microstructure and mechanical properties of resistance spot welded in welding-brazing mode and resistance element welded magnesium alloy/austenitic stainless steel joints[J]. Journal of Materials Processing Technology, 2017, 250:45-54.
    [2] 潘金芝,任瑞铭,戚正风. 45钢真空扩散焊接时的界面变形及其作用[J].焊接学报, 2010, 31(4):65-69 Pan Jinzhi, Ren Ruiming, Qi Zhengfeng. Interface deformation and its role of steel 45 in vacuum diffusion welding[J]. Transactions of the China Welding Institution, 2010, 31(4):65-69
    [3] Li H L, Liu D, Song Y Y, et al. Microstructure and mechanical properties of underwater wet welded highcarbon-equivalent steel Q460 using austenitic consumables[J]. Journal of Materials Processing Technology, 2017, 249:149-157.
    [4] Chang C S, Yang K S, Chung C K, et al. Surface quality, microstructure, and mechanical properties of the SKD 61 tool steel with prior heat treatment affected by single-and double-pass continuous wave laser polishing[J]. The International Journal of Advanced Manufacturing Technology, 2017, 92(1):1-16.
    [5] Urlea V, Brailovski V. Electropolishing and electropolishing-related allowances for IN625 alloy components fabricated by laser powder-bed fusion[J]. The International Journal of Advanced Manufacturing Technology, 2017, 92(9-12):4487-4499.
    [6] 戴伟,郑志镇,李建军,等.金属材料表面的电子束抛光研究进展[J].真空科学与技术学报, 2016, 36(5):582-596 Dai Wei, Zheng Zhizhen, Li Jianjun, et al. Latest development of metal surface polishing and surface modification with electron beam[J]. Chinese Journal of Vacuum Science and Technology, 2016, 36(5):582-596
    [7] Lu J, Wei D, Wang R, et al. Surface polishing and modification of 3Cr2Mo mold steel by electron beam irradiation[J]. Vacuum, 2017, 143:283-287.
    [8] Uno Y, Okada A, Uemura K, et al. A new polishing method of metal mold with large-area electron beam irradiation[J]. Journal of Materials Processing Technology, 2007, 187:77-80.
    [9] Wei D, Wang X, Wang R, et al. Surface modification of 5CrMnMo steel with continuous scanning electron beam process[J]. Vacuum, 2018, 149:118-123.
    [10] 屈岳波,周健,赵琳,等. 45钢光纤激光熔凝工艺[J].焊接学报, 2015, 36(7):59-63 Qu Yuebo, Zhou Jian, Zhao Lin, et al. Fiber laser remelting technology of 45 steel[J]. Transactions of the China Welding Institution, 2015, 36(7):59-63
    [11] 易云志.球墨铸铁电子束表面淬火的温度场及应力场仿真与实验研究[D].桂林:桂林电子科技大学, 2011.
    [12] 魏德强,刘科,王荣. 45钢电子束扫描相变硬化组织和硬度的研究[J].机械工程学报, 2012, 48(2):127-132 Wei Deqiang, Liu Ke, Wang Rong. Research on the microstructure and hardness of transformation hardening of 45 steel during electron beam scanning[J]. Journal of Mechanical Engineering, 2012, 48(2):127-132
    [13] Lippold J C. Welding metallurgy and weldability[M]. America:John Wiley&Sons, 2014.
    [14] Mcnallan M J, Debroy T. Effect of temperature and composition on surface tension in Fe-Ni-Cr alloys containing sulfur[J]. Metallurgical Transactions B, 1991, 22B:557-560.
    [15] Pitscheneder W, DebRoy T, Mundra K, et al. Role of sulfur and processing variables on the temporal evolution of weld pool geometry during multikilowatt laser beam welding of steels[J]. Welding Journal, 1995, 75:71s-80s.
    [16] SindoKoua,闫久春,杨建国,等.焊接冶金学[M].北京:高等教育出版社, 2012.
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  • 收稿日期:  2018-01-12

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