Acta Metallurgica Sinica (English Letters) ›› 1989, Vol. 2 ›› Issue (7): 27-32.
• Research paper • Previous Articles Next Articles
LUO Yang JI Qigen ZHANG Ning SU Xiujin Central Iron and Steel Research Institute,Ministry of Metallurgical Industry,Beijing,ChinaSUN Daliang Shandong University,Jinan,China senior engineer,Department of Precious Alloys,Central Iron and Steel Research Institute,Beijing,China