| 激光和TIG堆焊钴基合金的性能 |
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| 引用本文： | 徐国建,黄雪,杭争翔,傅新皓,于恩洪. 激光和TIG堆焊钴基合金的性能[J]. 焊接学报, 2013, 0(8): 22-26 |
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| 作者姓名： | 徐国建 黄雪 杭争翔 傅新皓 于恩洪 |
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| 作者单位： | 沈阳工业大学材料科学与工程学院, 沈阳 110870,沈阳工业大学材料科学与工程学院, 沈阳 110870,沈阳工业大学材料科学与工程学院, 沈阳 110870,沈阳工业大学材料科学与工程学院, 沈阳 110870,沈阳新松机器人自动化股份有限公司, 沈阳 110168 |
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| 基金项目： | 辽宁省自然科学基金资助项目(20092047) |
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| 摘 要： | 为了提高马氏体不锈钢蒸汽涡轮叶片的性能,采用Nd:YAG激光、CO2激光、半导体激光和TIG堆焊方法,在12%Cr马氏体不锈钢表面堆焊了钴基合金粉末(Stellite-6).通过X射线衍射分析、电子探针分析、能谱分析和耐磨试验,研究了堆焊层的形状、稀释率、维氏硬度、DAS(枝晶间距)值、显微组织和耐磨性能,并比较了不同堆焊方法的特点.与TIG堆焊相比,激光堆焊方法的堆焊层具有更小的稀释率、细小的显微组织、狭窄的热影响区、高的维氏硬度、优良的耐磨性、高的钴含量和低的铁含量的特点.
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| 关 键 词： | 激光堆焊 显微组织 维氏硬度 耐磨性 稀释率 |
| 收稿时间： | 2012-05-30 |
Characteristics of Co-based clad layer formed by laser and TIG cladding |
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| XU Guojian,HUANG Xue,HANG Zhengxiang,FU Xinhao and YU Enhong. Characteristics of Co-based clad layer formed by laser and TIG cladding[J]. Transactions of The China Welding Institution, 2013, 0(8): 22-26 |
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| Authors: | XU Guojian HUANG Xue HANG Zhengxiang FU Xinhao YU Enhong |
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| Affiliation: | School of Materials Science and Engineering, Shenyang University of Technology, Shenyang 110870, China,School of Materials Science and Engineering, Shenyang University of Technology, Shenyang 110870, China,School of Materials Science and Engineering, Shenyang University of Technology, Shenyang 110870, China,School of Materials Science and Engineering, Shenyang University of Technology, Shenyang 110870, China and Shenyang Siasun Robot & Automation Co. , Ltd. , Shenyang 110168, China |
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| Abstract: | In order to improve the performance of martensitic stainless steel steam turbine blade,pulsed Nd:YAG laser, CO2 laser,diode laser,and TIG cladding were carried out to deposite Stellite-6 powder on the surface of 12% Cr martensitic stainless steel plate. The shape of cladding layer,dilution, Vickers hardness,dendrite arm spacing (DAS) value,microstructure and wear resistance were investigated with X-ray diffraction, EPMA,EDS and wear test. And the characteristics of different cladding processes were compared. It was found that laser cladding processes, comparing with TIG cladding, have smaller dilution rate,finer microstructure,narrower heat-affected zone,higher Vickers hardness,better wear resistance,higher Co content,and lower Fe content in the resultant cladding layer. |
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| Keywords: | laser cladding microstructure Vickers hardness wear resistance dilution |
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