徐红勇,王文权,黄诗铭,方丽琴

• 1:吉林大学汽车材料教育部重点实验室

摘要(Abstract)：

采用光学显微镜、X射线衍射仪(XRD)和显微硬度计等研究了Ni Cr-Cr3C2添加量、喷焊层数对H13钢表面Ni60B等离子喷焊层显微组织与性能的影响。研究表明:随着Ni Cr-Cr3C2添加量增加,喷焊层硬质颗粒相明显增多,组织更加细密和均匀。当添加10%Ni Cr-Cr3C2时,其显微硬度可达基材的4倍以上;喷焊层数增加,喷焊层出现明显的分层现象,且组织也变得不均匀,显微硬度下降;熔合区白色胞状晶粒为部分熔化的残留基材晶粒,柱状树枝晶区为联生结晶和以基材残晶为核心的"包覆结晶"共同作用的结果,与现有研究结果不同;喷焊层主相均为Cr2Ni3、(Ni,Fe)、Fe Ni3、(Fe,C)、Cr23C6,硬质强化相Cr2Ni3、Cr23C6、B2Fe3Ni3、Fe23B等显著提高了喷焊层的力学性能。

关键词(KeyWords)： 等离子喷焊;Ni Cr-Cr3C2;包覆结晶;显微组织与性能

Abstract:

Keywords:

基金项目(Foundation): 吉林省科技厅工业高新处项目(3D511AC32416)

作者(Author): 徐红勇,王文权,黄诗铭,方丽琴

DOI: 10.13289/j.issn.1009-6264.2015.04.039

参考文献(References)：

• [1]潘邻,高万振,潘春旭,等.激光熔覆层与等离子喷焊层凝固组织对比及界面特征[J].材料热处理学报,2006,27(3):104-107.PAN Lin,GAO Wan-zhen,PAN Chun-xu,et al.Microstructure of laser cladding layer and plasma transferred are layer and interface characteristics[J].Transactions of Materials and Heat Treatment,2006,27(3):104-107.
• [2]Herman H,Sampath S,Mccune R.Thermal spray:current status and future trends[J].MRS Bulletin,2000,25(7):17-25.
• [3]Grum J,Slabe J M.A comparison of tool-repair methods using CO2laser surfacing and arc surfacing[J].Applied Surface Science,2003,208:424-431.
• [4]Hou Q Y,Gao J S,Zhou F.Microstructure and wear characteristics of cobalt-based alloy deposited by plasma transferred arc weld surfacing[J].Surface and Coatings Technology,2005,194(2/3):238-243.
• [5]ZHAO Cheng,TIAN Feng,PENG Hong-rui,et al.Non-transferred arc plasma cladding of stellite Ni60 alloy on steel[J].Surface and Coatings Technology,2002,155(1):80-84.
• [6]Turk A,Bindal C.Characterization of plasma nitrided X32Cr Mo V33 die steel[J].Materials and Manufacturing Processes,2009,24(7/8):898-902.
• [7]Muhic T,Tusek J,Pleterski M,et al.Problems in repair-welding of duplex-treated tool steels[J].Metalurgija,2009,48(1):39-42.
• [8]商延赓,王文权,黄诗铭,等.等离子喷焊层Ni Cr BSi+WC/Co的组织与性能[J].吉林大学学报:工学版,2011,41(增刊2):198-201.SHANG Yan-geng,WANG Wen-quan,HUANG Shi-ming,et al.Microstructures and properties of plasma surfaced Ni Cr BSi+WC/Co layers[J].Journal of Jilin University:Engineering and Technology Edition,2011,41(S2):198-201.
• [9]李殿凯,李明喜,洪海峰.Y2O3对等离子喷焊高铬铁基涂层组织和性能的影响[J].材料热处理学报,2013,34(6):153-157.LI Dian-kai,LI Ming-xi,HONG Hai-feng.Effect of Y2O3on microstructures and properties of high-chromium Fe-based coating produced by plasma arc cladding process[J].Transactions of Materials and Heat Treatment,2013,34(6):153-157.
• [10]马幼平,赵峰,潘景余,等.过共晶高铬白口铸铁碳化物生长机制及影响因素分析[J].热加工工艺,2007,36(1):14-16.MA You-ping,ZHAO Feng,PAN Jing-yu,et al.Study on carbides growth mechanism and influencing factors of hyper eutectic high chromium white cast irons[J].Hot Working Technology,2007,36(1):14-16.
• [11]胡文富,易伟,尹光福,等.稀土对铁基自熔合金喷焊层组织与耐蚀性能的影响[J].稀土,2003,24(5):57-60.HU Wen-fu,YI Wei,YIN Guang-fu,et al.Effect of rare earth on microstructure and corrosion resistance of iron base fluxing alloy spray-welding coating[J].Chinese Rare Earths,2003,24(5):57-60.
• [12]郝石坚.现代铸铁学[M].北京:冶金工业出版社,2004.
• [13]黄凤晓,江中浩,陈莉.Nb对送粉激光熔覆层组织和性能的影响[J].金属热处理,2007,32(12):45-48.HUANG Feng-xiao,JIANG Zhong-hao,CHEN Li.Effect of niobium on microstructure and properties of coating formed by powder feeding laser cladding[J].Heat Treatment of Metals,2007,32(12):45-48.

文章评论(Comment)：