Author/Authors :
Inoue، نويسنده , , N. and Muroga، نويسنده , , T. and Nishimura، نويسنده , , A. and Oguri، نويسنده , , K. and Yabe، نويسنده , , H. and Uchida، نويسنده , , S. and Nishi، نويسنده , , Y.، نويسنده ,
Abstract :
The in situ measurements of hardness and X-ray diffraction have been performed at high temperature for Fe–Cr–W steels. The effect of tungsten concentration was investigated by comparing Fe–9Cr–2W–V–Ta steel and Fe–9Cr–3W–V–Ta steel. The tungsten addition increases hardness below 873 K. An aging test for 3600 s at 873 and 1073 K showed no clear change of hardness. A structural change from bcc to fcc and tungsten carbide coarsening are observed by X-ray diffractometry.
