摘要
为了测量经过热喷涂-激光原位反应合成技术在CLAM钢表面制备的Al_2O_3-TiO_2陶瓷涂层的界面剪切强度,采用万能拉压试验机配合自制的剪切装置研究了涂层与基材界面的剪切强度,并通过有限元的方法模拟了剪切强度的大小与在界面处的受力、变形情况。结果表明:通过热喷涂-激光原位合成技术制备的Al_2O_3-TiO_2涂层的界面剪切强度较高,大约为283MPa;有限元(FEM)模拟的结果大约为319.59MPa,与实验结果相似。
To measure the shear strength of the interface between CLAM steel and Al2O3-TiO2 composite coating that prepared by hot-spraying and situ-laser on CLAM steel, this paper studies the shear strength of interface between coating and substrate using universal mechanics-testing machine and home-made shearing device. The size of shear strength and the forces at the interface is simulated by finite element measure. The results show that Al2O3-TiO2 coating has a high-shear strength, which is about 283 MPa; the simulation result is 319.59 MPa, which is similar to the test result.
出处
《机械工程师》
2017年第1期18-20,共3页
Mechanical Engineer
基金
国家自然科学基金重大研究计划项目(91326114)
湖南省高校重点实验室项目(湘财教指[2014]85号)
湖南省高校科技创新团队支持计划项目(湘教通[2012]318号)
湖南省重点学科建设项目(湘教发[2011]76号)
