1991 Volume 77 Issue 5 Pages 715-722
Recently, it is strongly demanded to develop a tester which makes possible to in situ observe the microstructures deformed in the wide temperature range from room temperature to high temperatures. Both Mechanical Engineering Laboratory, Agency of Industrial Science and Technology and Shimadzu Co. have produced such a tester, where a hydraulic machine with a vacuum chamber and a heater is equipped with a scanning electron microscopy.
Mod. IN-100, a slightly modified version of IN-100 which has specific points (i.e. transformation and recrystallization temperatures etc.) at high temperatures has been prepared, and in situ observed in the temperature range from room temperature to 1 323 K using an upper type furnace in installation of trapping the thermal electron.
Good scanning electron microstructures have been observed up to 1 306 K in both scanning and television mode. Beyond 1 306 K, however, it is difficult to bring its target into focus, because an amount of the detected second electron decreases in using the furnace mentioned above. In television mode, especially, the microstructures are slightly seen.
