GB/T 38222—2019《工程结构用中、高强度不锈钢铸件金相检验》国家标准解读  

Interpretation of National Standard GB/T 38222—2019“Metallographic Examination Method of Medium and High Strength Stainless Steel Castings for General Engineering Applications”

作　　者：王志明 李巨文 尚尔峰 关帅 WANG Zhi-ming;LI Ju-wen;SHANG Er-feng;GUAN Shuai(State Key Laboratory of Light Alloy Casting Technology for High-End Equipment,Shenyang Research Institute of Foundry Co.,Ltd.,Shenyang 110022,Liaoning,China)

机构地区：[1]沈阳铸造研究所有限公司,高端装备轻合金铸造技术国家重点实验室,辽宁沈阳110022

出　　处：《铸造》2022年第4期495-498,共4页Foundry

摘　　要：介绍了GB/T 38222—2019《工程结构用中、高强度不锈钢铸件金相检验》国家标准的制定概况,分别在标准范围、规范性引用文件、试样的选取与制备、金相组织、马氏体级别、δ铁素体含量、非金属夹杂物评级等方面论述了标准的内容,并分析了标准的技术特点和应用范围。The development of national standard GB/T 38222—2019“Metallographic Inspection of Medium and High Strength Stainless Steel Castings for General Engineering Applications”was introduced.The scope of the standard,normative reference documents,sample selection and preparation,metallographic structure,martensite grade,δferrite content and non-metallic inclusion rating were discussed in detail,and the technical characteristics and application scope of the standard were analyzed.

关 键 词：金相检验 国家标准 马氏体级别 Δ铁素体 

分 类 号：TG115.21[金属学及工艺—物理冶金]