氮化铌，是一种化工生产产品。
计算结果表明：冷却速率对碳氮化铌的析出及长大有重要影响。
As a result, It is found that the cooling rate has great effect on the Nb (CN) nucleation and growth.
研究结果表明，铌含量的提高抑制了珠光体的形成，促进了针状铁素体的形成，细小的碳氮化铌析出相增多；
The results show that niobium increment retains the formation of pearlite and makes fraction of acicular ferrite and fine niobium carbonitride niobium increase.
通过含铌与不含铌基体钢气体软氮化工艺对比实验，初步探索了合金元素铌对基体钢软氮化渗层组织与性能的影响。
This paper has investigated the influence of alloying element Nb on structure and properties of the soft nitriding layer by means of experiments of the matrix steels containing Nb and Nbfree.
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