本帖最后由 武歆 于 2020-8-27 16:43 编辑 ! U0 l _ l- u2 c
4 G& u% p! U1 R7 k; i/ y5 a这个应该是碳氮共渗,参考《USE OF THE METHOD OF ACOUSTIC EMISSION FOR STUDYING% z; T2 ~/ g' i/ }1 M. u/ `
THE LAWS OF FORMATION OF SECONDARY STRUCTURES& P* R/ W/ ^$ J$ Q# }8 t! q
AT FRICTION OF NICOTRATED STEELS》,“We used the method of acoustic emission for analyzing
, D% \* f8 U# w6 h: ]the parameters of structure formation in thin surface layers of
* B, }8 i$ |, h9 P5 p4 @( c9 Fhigh-hardness carbonitride coatings on nicotrated steels.The nicotratingwas performed at 580°C for 8 h in a gaseous saturating medium: K, @+ G7 j3 V7 Y
consisting of 50% ammonium and 50% endothermic
% H. u; O- [" I0 Tgas.” |