metal average grain size evaluation -j9九游会登录入口

metal average grain size evaluation

purposes:

unit area grain size and grain number is related to the size of the grains. the size of the grains has a decisive effect on the mechanical properties of tensile strength of the metal, toughness, ductility etc. checking the material grain size can evaluate material properties.

applications:

steel, copper alloy, aluminum alloy, magnesium alloy, nickel alloy, titanium alloy etc.

tested flow:

sampling→cleaning→inlaying→grinding→polishing→etching→observeing

reference standard:

gb/t 6394-2002 metal-methids for estimating the average grain size

astm e112-2013 standard test methods for determining average grain size

ys/t 347-2004 copper and copper alloys. estimation of average grain size

classic photos:

grain size of pure copper	pure aluminium grain size
pure iron grain size	aluminum alloy grain size