Tensile processing transformation fever measuring device and the tensile test method for metallic materials

摘要

PROBLEM TO BE SOLVED: To provide a metallic material tension processing modification heating measurement device and a metallic material tension test method capable of tracking a local tension deformation behavior.;SOLUTION: A tension test piece 1 to whose one side (side temperature surface) a black body lacquer is coated, is used, and a tension processing modification heating measurement device in which, at least half or more of a periphery of the tension test piece 1 is surrounded by a blackout curtain 2b, is used for a tension test. In time series since start to end of the tension test, load is measured by load measurement means 3a, displacement is measured by displacement measurement means 3b, and a temperature distribution image is imaged by an infrared ray thermography from one side of the test piece 1, and an appearance of the test piece 1 is imaged by a test piece imaging device 4 from the other side. The acquired pieces of data are subjected to arithmetic processing, and the deformation behavior and temperature distribution are associated in time series for visualizing them. Therefore, local processing heating, a position where modification heating is generated, and a generation timing of the modification heating can be indicated in association with the tension deformation behavior, and deformation behavior of a material such as a steel plate can be analyzed.;COPYRIGHT: (C)2016,JPO&INPIT