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) |
|
|
摘要点击次数: |
全文下载次数: |
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. |
查看全文 查看/发表评论 下载PDF阅读器 |
关闭 |