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Co对高Ni-Co二次硬化钢微结构影响的穆斯堡尔谱研究
Influence of Co on Microstructure of High Ni-Co Secondary Hardening Steel by Mossbauer Spectroscopy Study
【摘要】 用穆斯堡尔谱研究了钴含量对高 Ni- Co二次硬化钢微结构的影响。发现 :随着钢中钴含量的减少 ,马氏体中的钴作为铁原子近邻的原子组态总量减少 ;钴在马氏体中的分布会影响镍、铬、钼原子在马氏体中的分布 ;钴促进奥氏体向马氏体转变 ,减少残余奥氏体量 ;钴促进合金碳化物的形成 ,增加其析出量
【Abstract】 The influence of Co on the microstructure of high Ni Co secondary hardening steel was studied by Mossbauer spectroscopy. The results showed that the configuration of Fe C 2Co, Fe 2Co in martensite is reduced with decreasing of Co content in steel; the distribution of alloying elements Ni, Cr, Mo is influenced by Co content in martensite; Co promotes the transformation of austenite to martensite during quenching, the amount of austenite is decreased with increasing of Co content in steel; Co promotes the formation of carbide during tempering, the quantity carbide increases with increasing of Co content in steel.
【Key words】 Mossbauer spectrum; hyperfinefield; alloying element distribution; Co; secondary hardening steel;
- 【文献出处】 钢铁研究学报 ,Journal of Iron and Steel Research , 编辑部邮箱 ,2001年06期
- 【分类号】TG142.1
- 【被引频次】3
- 【下载频次】118