摘要
以钛基复合材料为研究对象,选择影响离子抛光质量的主要工艺参数、加速电压和试样凸出量,进行相关离子抛光实验.结果表明,随着加速电压的增大,抛光表面与材料原始表面之间形成了不同程度的抛光台阶.通过抛光形貌和粗糙度的综合对比分析,得到了加速电压的优化工艺参数范围.选择最佳加速电压参数条件,研究了不同试样凸出量对表面抛光形态和粗糙度的影响,当试样凸出量过大时,抛光台阶增大,且粗糙度明显增大.因此,在控制精度允许范围内,应尽量减小试样凸出量以获得高质量的抛光表面.
The ion polishing can solve the problem of interface convex caused by mechanical polishing and electrolytic polishing of metal matrix composite materials.However,there is not enough research on the polishing process parameters impacting on the polishing quality.Since the macroscopic metallographic of polished surface and roughness are the important basis for studying the quality of ion polishing,the titanium matrix composite material was selected to analyze the polishing voltage and the sample protrusion impact on the polishing quality.The results have shown that different polishing steps are formed between the polished surface and the original surface of the material as the polishing voltage increases.Through the combination analysis of the macroscopic metallographic and roughness,the optimized range of the polishing voltage were obtained.Under the condition of selecting the best polishing voltage parameters,the influence of the sample protrusion on the surface roughness was studied.When the amount of protrusion becomes too large,the polishing step and the roughness are significantly increased.Therefore,the amount of protrusion should be minimized to obtain a high-quality polished surface within the allowable accuracy of controlling the sample protrusion.
作者
马晓丽
刘礼
王立强
MA Xiaoli;LIU Li;WANG Liqiang(School of Materials Science and Engineering,Shanghai Jiao Tong University,Shanghai 200240,China;Yungtay Elevator Equipment(China)Co.,Ltd.,Shanghai 201615,China)
出处
《实验室研究与探索》
CAS
北大核心
2019年第11期42-45,共4页
Research and Exploration In Laboratory
基金
上海交通大学决策咨询课题重点课题(JCZXSJA2018-001)
关键词
加速电压
试样凸出量
粗糙度
polishing voltage
sample protrusion
roughness
