This paper studies the effects of rare earth elements (re) in the gas carbonitriding and puts forward a systematic proposition of the rare earth elements catalyzing mechanism.
本文研究了稀土元素在气体碳氮共渗中的作用，并系统地提出了稀土催化机理。
2
It can be quenched in a controlled atmosphere, thin carburizing, carbonitriding heat treatment process.
它能在可控气氛下进行淬火，薄层渗碳、碳氮共渗等热处理工艺。
3
The unsuitable carbonitriding process, internal oxidation, over deep depth of carbonitrided layer and crust like C N compound on the surface are the main reasons to cause fracture.