摘要
研究了稀土、铌、钒、钛等元素对低合金铸钢组织和性能的影响。结果表明，强碳化物形成元素（铌、钒、钛等）可细化晶粒和沉淀强化，显著提高铸钢强度；稀土则可细化晶粒并改善非金属夹杂物的形态和分布，显著提高钢的韧性。这些合金元素复合处理铸钢。
An investigations were carried out into the effects of microalloying elements such as RE and strong carbide forming elements (Nb,V,Ti etc.)on the structure and properties of low alloy cast steel.The experimental results showed that the strong carbide forming elements including Nb,V,Ti etc.could produce grain refinement and precipitating strengthening,thus markedly increasing the strength of the cast steel.The rare earths, in addition to grain refinement, could improve the morphology and distribution of non inclusions in the cast steel so as to obviously increase the toughness.The low alloy cast steel treated by the combination of above mentioned elements could obtain the optimal effects of strengthening and toughening for the cast steel.
出处
《铸造》
EI
CAS
CSCD
北大核心
1997年第1期25-27,共3页
Foundry
