ISO 643-2003 钢.表面粒度的缩微照相测定.pdf

标准号：ISO 643-2003
实施状态：作废
中文名称：钢.表面粒度的缩微照相测定
英文名称：Steels - Micrographic determination of the apparent grain size
发布日期：2003-02
被替代标准：ISO 643-2012
代替标准：ISO 643-1983;ISO/FDIS 643-2002
采用标准：DIN EN ISO 643-2003,IDT;BS EN ISO 643-2003,IDT;EN ISO 643-2003,IDT;NF A04-102-2003,IDT;JIS G 0551-2005,MOD;SN EN ISO 643-2003,IDT;OENORM EN ISO 643-2003,IDTN-EN ISO 643-2005,IDT;UNE-EN ISO 643-2004,IDT
起草单位：ISO/TC 17
标准简介：This International Standard specifies a micrographic method of determining apparent ferritic or austenitic grain size in steels. It describes the methods of revealing grain boundaries and of estimating the mean grain size of specimens with unimodal size distribution. Although grains are three-dimensional in shape, the metallographic sectioning plane can cut through a grain at any point from a grain corner, to the maximum diameter of the grain, thus producing a range of apparent grain sizes on the two-dimensional plane, even in a sample with a perfectly consistent grain size.
文件格式：PDF
文件大小：2.24MB
文件页数：40
（以上信息更新时间为：2019-11-23）



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