摘要
试验结果表明，锻造模具钢5CrMnMo浇铸时添加稀土元素处理后，改变了硫化物夹杂的形状，细化钢的奥氏体晶粒，提高了钢的横向冲击性能，使锻造模具的使用寿命提高15%～20%。
The test results show that the die steel 5CrMnMo f or forging is treated by rear earth (RE) metal in casting, which results in modi fying thesulphide inclusion in steel, fining the austenitic grain of steel, improving th e transverse impact toughness, and increasing the service life of die for forging by 15%-20%.
出处
《特殊钢》
北大核心
2000年第6期11-13,共3页
Special Steel
