GB/T 6394—2002《金属平均晶粒度测定法》存在的问题  

Problems in GB/T 6394-2002 "Average Grain Size Determination"

作　　者：李硕 

机构地区：[1]中国北车兰州机车有限责任公司质量保证部,兰州730050

出　　处：《理化检验（物理分册）》2013年第6期392-394,共3页Physical Testing and Chemical Analysis(Part A:Physical Testing)

摘　　要：从理论和实际应用两方面对GB/T 6394—2002《金属平均晶粒度测定法》中,通过加热处理形成奥氏体晶粒度的方法存在的问题进行分析,并提出了修订建议,即对金属经过加热方法所形成的晶粒度和不经过任何加热处理直接侵蚀得到的晶粒度应进行区分,并提出"标准晶粒度"的概念以区分"实际晶粒度"。The existing problems in the method of formation austenite grain by heating in GB/T 6394-2002 ＂Metal Average Grain Size Determination Method＂ were analyzed from theoretical and practical aspects. And revision opinions were put forward at the same time, that is, to distinguish the grain size formed by heating and the grain size directly revealed by etching without any heat treatment, and the conception of ＂standard grain size＂ was put forward in order to distinguish the actual grain size.

关 键 词：GB T 6394—2002 奥氏体 晶粒度 加热处理 实际晶粒度 标准晶粒度 

分 类 号：TG113.1[金属学及工艺—物理冶金]