薄膜材のための小型疲労試験機の開発

概要

論文の詳細を見る
It is very important in the industrial field to examine mechanical and fatigue life properties of small materials such as thin films. Some kinds of test equipment and methods for such small material have been developed. For example, there are simple and compact tensile testing devices that use a DC motor as the actuator, and also micro indentators, which measure material properties by pushing a diamond indentator on the surface. However, it is still difficult to conduct a fatigue test with complex waves like a triangle wave by the above testers. In this study, a small fatigue testing device, in which a piezo electric ceramic is applied as the actuator, was produced as a trial for measuring a tensile strength and fatigue life properties of a small material. Through our tests, it was found that the small fatigue testor which was developed here is effective for small specimens. Results showed that a yield stress and tensile strength for our film material was much higher than for SUS304 bulk material, which we had tested previously. The fatigue life was also much higher than for the bulk.
一般社団法人日本機械学会の論文
2002-05-25