Effects of high-temperature exposure on mechanical properties of thermal sprayed CoNiCrAlY alloy coating
Thermal spraying is widely used in various industrial fields as an effective surface modification method.In this study,mechanical properties of thermal sprayed CoNiCrAlY alloy coating were investigated.The coatings were prepared by three kinds of thermal spray methods.High-temperature exposure of the coated specimens was carried out in the atmosphere.After high-temperature exposure,apparent Youngs modulus,strain tolerance and residual stress of CoNiCrAlY coating were measured.These tests were also carried out using specimens without high-temperature exposure.As the results,the changes of mechanical properties caused by high-temperature exposure seemed to be correlated with the initial morphology at as-sprayed state.From these results,effects of high-temperature exposure on mechanical properties of thermal sprayed CoNiCrAlY alloy coating were discussed.
thermal spray coating CoNiCrAlY alloy high-temperature exposure Youngs modulus strain tolerance residual stress
Hideaki Yamano Takeshi Takabatake Kazumi Tani
Thermal Spraying Technology R & D Laboratories,Tocalo Co.,Ltd.,Akashi,Japan
国际会议
上海
英文
1142-1146
2008-09-26（万方平台首次上网日期，不代表论文的发表时间）