2014 年 22 巻 5 号 p. 15-20
In the previous report, it was shown that for a standard hardness specimen, the relation between heat-treatment conditions and the indenting deformation process changes depending on the test conditions. In this report, the method of analysis was changed; aparameter design of the heat-treatment conditions and test conditions of the indenting deformation process was performed and the change caused by altering the two conditions was evaluated. This showed that the strength of the material is determined by the combination of the heat-treatment conditions and test conditions. By using the results of this indenting deformation process test, it became possible to study the meaning of the test as a strength of materials characteristic.