陈枭.激光重熔低压等离子喷涂MoB/CoCr梯度涂层组织与性能研究[J].表面技术,2012,(2):23-25，46.
CHEN Xiao.Study on Microstructure and Property of Low Pressure Plasma Sprayed MoB/CoCr Gradient Coatings by Laser Remelting[J].Surface Technology,2012,(2):23-25，46 |
| 激光重熔低压等离子喷涂MoB/CoCr梯度涂层组织与性能研究 |
| Study on Microstructure and Property of Low Pressure Plasma Sprayed MoB/CoCr Gradient Coatings by Laser Remelting |
| 投稿时间：2011-11-30 修订日期：2012-04-20 |
| DOI： |
| 中文关键词: MoB/CoCr 低压等离子喷涂 激光重熔 显微硬度 组织 |
| 英文关键词:MoB/CoCr low pressure plasma spraying laser remelting microhardness microstructure |
| 基金项目:江西省自然科学基金项目(2010GQC0117);江西省教育厅科技项目(GJJ12622);江西省高校省级教改课题(JXJG-11-17-10) |
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| 中文摘要: |
| 采用低压等离子喷涂技术在310S不锈钢表面制备MoB/CoCr梯度涂层,然后对MoB/CoCr涂层进行激光重熔处理,对重熔后涂层的组织结构及性能进行了研究。研究结果表明,激光重熔后,涂层表面平整致密,截面的显微组织呈树枝晶—胞状晶—平面晶过渡;激光重熔过程中,微熔的310S基体元素与熔化的涂层元素发生对流扩散现象,涂层中出现Fe元素成分;激光重熔后,MoB/CoCr层的硬度明显提高。 |
| 英文摘要: |
| MoB/CoCr gradient coatings were sprayed on 310S stainless steel using low pressure plasma spraying method, and then MoB/CoCr gradient coatings were laser remelted. The microstructure and property of MoB/CoCr coatings were studied. Results show that the surface morphology of MoB/CoCr coating is smooth and dense, cross sectional microstucture of MoB/CoCr gradient coatings consists of dentrite crystal, cystiform crystal and flat crystal from the surface to the bottom of coatings; There is convection-diffusion phenomena occurred between element of 310S stainless steel and that of coatings, Fe element appears in the coatings; Microhardness of MoB/CoCr coating increases obviously after laser remelting. |
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