| 等离子熔覆多元镍基涂层-基体的力学性能研究 |
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| 引用本文： | 郝金龙,张梦月,李洋,金国,吕长生. 等离子熔覆多元镍基涂层-基体的力学性能研究[J]. 表面技术, 2017, 46(8): 55-60. DOI: 10.16490/j.cnki.issn.1001-3660.2017.08.009 |
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| 作者姓名： | 郝金龙 张梦月 李洋 金国 吕长生 |
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| 作者单位： | 中车长春轨道客车股份有限公司工程技术部,长春,130062;哈尔滨工程大学材料科学与化学工程学院,哈尔滨,150001;陆军航空兵驻哈尔滨地区军代室,哈尔滨,150001 |
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| 摘 要： | 目的在FV520B不锈钢基体上,采用等离子熔覆技术制备多元镍基涂层,研究不同成分配比涂层-基体协同作用下的力学性能。方法通过扫描电子显微镜分析涂层的表面及界面形貌,并对涂层-基体进行了拉伸及高温压缩性能测试,得到各涂层的抗拉强度及高温变形抗力,对比分析组织、相分布特征及涂层成分对涂层-基体系统力学性能的影响。结果等离子熔覆涂层组织致密,界面处呈现良好的冶金结合,这种结合方式可提高涂层-基体的综合力学性能;涂层-基体协同作用可显著提高材料的抗拉强度及变形抗力,且涂层的成分、组织及相分布特征是影响涂层-基体协同形变行为的关键因素。其中,Ni60+20%Ti涂层材料的抗拉伸性能最好,抗拉强度高达921 MPa,较基体材料提高了19.6%。Ni60+30%Ti+10%WC涂层-基体的高温力学性能最好,高温变形抗力达687.87 MPa。结论等离子熔覆多元镍基涂层使基体材料的抗拉强度有所提高,且高温变形抗力提高显著。
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| 关 键 词： | 等离子熔覆 镍基涂层 拉伸 高温压缩 力学性能 |
| 收稿时间： | 2017-02-15 |
| 修稿时间： | 2017-08-20 |
Mechanical Property of Plasma Cladded Multivariate Nickel-based Coating and Substrate |
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| HAO Jin-long,ZHANG Meng-yue,LI Yang,JIN Guo and LYU Chang-sheng. Mechanical Property of Plasma Cladded Multivariate Nickel-based Coating and Substrate[J]. Surface Technology, 2017, 46(8): 55-60. DOI: 10.16490/j.cnki.issn.1001-3660.2017.08.009 |
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| Authors: | HAO Jin-long ZHANG Meng-yue LI Yang JIN Guo LYU Chang-sheng |
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| Affiliation: | Engineering Technology Department of CRRC Changchun Railway Vehicles Co. Ltd, Changchun 130062, China,College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China,College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China,College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China and Army Aviation Stationed in Harbin Military Representative Office, Harbin 150001, China |
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| Abstract: | The work aims to study mechanical property under synergistic effect of coating-substrate in different composition proportion by preparing multi-element nickel-based coatingon FV520B stainless steel substrate by adopting plasma cladding technology. Surface and interface morphology of the coatingswere observed byusing scanning electron microscope (SEM), tensile and high temperature compression property of the coating-substrate were tested. Tensile strength and high temperature deformation resistance of each coating were obtained. Influences of structure, phase distribution characteristics and coating composition on mechanical properties of the coating-substrate system were analyzed. Plasma cladded coatings featured in dense microstructure and good metallurgical bonding on interface, the bonding mode could improve comprehensive mechanical property of the coating-substrate; synergistic effectof the coating-substrate could improve tensile strength and deformation resistance significantly, and composition, structure and phase distribution characteristics of the coatingswere key factors influencing synergistic deformation behavior of the coating-substrate. The coating Ni60+20%Ti exhibited the best tensile strength, which was up to 921 MPa, 19.6% higher than that of substrate material. The coating Ni60+30%Ti+10%WC exhibited the best high temperature mechanical properties, the high temperature deformation resistance was up to 687.87 MPa. Tensile strength of the plasma claddedmulti-element nickel-based coating on the substrate improves, and the high temperature deformation resistance improves significantly. |
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| Keywords: | plasma cladding nickel-based coating tension high temperature compression mechanical properties |
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