| 冲击载荷下热喷涂涂层的塑性变形行为分析 |
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| 引用本文： | 李学敏.冲击载荷下热喷涂涂层的塑性变形行为分析[J].兰州理工大学学报,1997(2). |
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| 作者姓名： | 李学敏 |
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| 作者单位： | 甘肃工业大学技术基础课部 |
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| 摘 要： | 采用ＡＰＳ－Ａｒ／Ｈ２，ＡＰＳ－Ａｒ／Ｈｅ和ＣＤＳ三种工艺制成的Ｃｒ３Ｃ２－２５％ＮｉＣｒ涂层，在自制的冲击磨损试验机上对其进行了冲击特性试验研究．根据试验结果和相应的实验分析，结合晶体位错理论，初步探讨了涂层在冲击条件下的变形机理．理论分析认为，涂层所产生的塑性变形不是连续的，表面变形也是不均匀的，是一个累积过程，这主要与冲击动能和涂层的微结构有关。
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| 关 键 词： | 涂层 塑性变形 位错 冲击 微结构 |
Behavior analysis of abrasion and plastic deformation of Cr3C2 25% NiCr hot sprayed coatings under repeated impact |
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| Li Xuemin.Behavior analysis of abrasion and plastic deformation of Cr3C2 25% NiCr hot sprayed coatings under repeated impact[J].Journal of Lanzhou University of Technology,1997(2). |
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| Authors: | Li Xuemin |
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| Abstract: | Experimental investigation of impact wear performance of Cr3C2 25%NiCr coatings deposited by the APS Ar/H2 and APS Ar/He plasma spray and CDS detonation spray has been carried out using a self made impact wear rig. Based on the test results and experimental analysis, mircodeformation mechanism of the coating under impact is discussed preliminarily according to crystal dislocation theory, providing a theoretical and experimental basis for the application of this kind of coating. |
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| Keywords: | coating plastic deformation dislocation impact mircrostructure |
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