| 超音速火焰喷涂316L不锈钢涂层性能研究 |
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| 引用本文： | 郭孟秋,张兴华,阙民红,刁望勋,王长亮,智幼波.超音速火焰喷涂316L不锈钢涂层性能研究[J].失效分析与预防,2013(4):216-221. |
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| 作者姓名： | 郭孟秋 张兴华 阙民红 刁望勋 王长亮 智幼波 |
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| 作者单位： | [1]北京航空材料研究院,北京100093 [2]中国人民解放军第五七一0工厂,湖北宜昌444100 |
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| 摘 要： | 采用超音速火焰喷涂技术(HVOF)在高强钢表面制备了316L不锈钢涂层,利用扫描电镜、显微硬度仪、电化学测试系统等设备对涂层金相组织、硬度、结合性能和抗腐蚀性能等进行了测试,并分析了WC-CoCr中间层对316L不锈钢粉末涂层结合强度及涂层界面的影响。结果表明:超音速火焰喷涂316L不锈钢粉末颗粒在喷涂中变形充分,形成较致密的涂层,并具有超过400 HV0.1的显微硬度;涂层具有较高自腐蚀电位,耐蚀性优于高强钢;涂层结合强度随着涂层厚度的减小、基体硬度的增加而提高;WC-CoCr底层可改善涂层界面结合,从而改善316L不锈钢涂层的结合性能。
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| 关 键 词： | 涂层组织 结合强度 316L不锈钢涂层 超音速火焰喷涂 |
Study on Properties of HVOF 316L Stainless Steel Coating |
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| GUO Meng-qiu,ZHANG Xing-hua,QUE Min-hong,DIAO Wang-xun,WANG Chang-liang,ZHI You-bo.Study on Properties of HVOF 316L Stainless Steel Coating[J].Failure Analysis and Prevention,2013(4):216-221. |
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| Authors: | GUO Meng-qiu ZHANG Xing-hua QUE Min-hong DIAO Wang-xun WANG Chang-liang ZHI You-bo |
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| Affiliation: | 1. Beijing Institute of Aeronautical Materials, Beifing 100095, China; 2. No. 5710 Factory of PLA, Hubei Yichang 444100, China) |
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| Abstract: | 316L stainless steel coatings were deposited by high velocity oxy-fuel （HVOF） spraying on high strength steels. The properties of the coatings were tested including microstructure, micro-hardness, bonding and corrosion resistance, the influence of WC-CoCr interlayer on bond strength and interface was also studied. The results indicated that the 316L stainless steel powders were deformed during spraying and formed dense coatings, the micro-hardness value was above 400Hv0.l. 316L stainless steel coatings have lower free corrosion potential and better corrosion resistance than high strength steels; the coating bond strength increased because of the reduced coating thickness and harder substrate. At last, WC-CoCr interlay can improve the interface and bonding performance. |
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| Keywords: | microstructure bonding strength 316L stainless steel coating HVOF |
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