GB/T 6394-2017 Translated English of Chinese Standard (GBT 6394-2017, GB/T6394-2017, GBT6394-2017): Determination of estimating the average grain size of metal

Couverture
https://www.chinesestandard.net, 20 juil. 2017 - 50 pages
This standard specifies the expression and determination methods of the average grain size of metal structure, including the comparison method, area method and interception method; it is applicable to the single-phase structure; however, after being specified, it is also applicable to the determination of the average grain size of the certain type in the multi-phase or multi-component sample. If the histomorphology of the non-metallic material is similar to the metal structure in the rating chart, it may also make reference to it.
 

Table des matières

Foreword
3
Introduction
5
Scope
6
Terms and definitions
7
Symbols
8
Overview and application
10
Sampling
12
Determination method
13
Grain size of nonequiaxed grain
26
Grain size of sample containing two or more phase structures
29
Grain size report
31
Precision and deviation
32
Appendix A Normative Grain size formation and display method
34
Appendix B Normative Statistical technique Calculation of confidence interval and relative error of grain size measurement results
41
Informative Grain size measurement basis
45

Expressions et termes fréquents

À propos de l'auteur (2017)

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