carburizing/nitriding/hardening layer measurement -凯发官网入口首页

carburizing/nitriding/hardening layer depth measurement

purposes:

to check the component's the penetration depth and organizational changes after surface hardening or carburizing, nitriding treatment.

applications:

surface treatment on steel by carburizing, nitriding, decarbonization, carbonitriding, induction hardening steel.

tested flow:

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

reference standard:

iso 3887-2003 steel, determination of depth of decarburization

gb/t 224-2008 determination of depth of decarburization of steels

qc/t 29018-1991 metallographic examination of automobile carbon and nitrogen co permeation gear

astm e1077-2001(2005) standard test methods for estimating the depth of decarburization of steel specimens

iso 2639-2002 steels—determination and verification of the depth of carburized and hardened cases

gb/t 11354-2005 determination of nitrided case depth and metallographic microstructure examination for steel and iron parts

gb/t 9451-2005 determination of total or effective thickness of thin surface hardened layers of steel parts

gb/t 5617-2005 determination of effective depth of hardening after induction or flame hardening of steel

gb/t 9450-2005 steels—determination and verification of the depth of carburized and hardened cases

gb/t 9095-2008 (iso 4507-2000)  sintered ferrous materials，carburized or carbonitrided —determination and verification of case-harding depth

classic photos:

the depth of nitriding layer	the depth of carburized layer