H22—40SiMnCrNiMoA钎杆的亚温正火延寿处理

来源 :热加工工艺 | 被引量 : 0次 | 上传用户：Mr__x007

【摘要】

：

40SiMnCrNiMoA钢780℃亚温正火(风冷)后,其组织为以板条马氏体和条状无碳贝氏体为主、并有少量细条状铁素体的复合组织,晶粒细小均匀.由于780℃亚温正火后材料强度和塑韧性都

【作者】

：

饶建华张国榉

【机构】

：

中国地质大学机电学院

【出处】

：

热加工工艺

【发表日期】

：

2001年6期

【关键词】

：

钎杆复合组织亚温正火 40SiMnCrNiMoA钢 drill rod mixture phase structure subcritical norma

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40SiMnCrNiMoA钢780℃亚温正火(风冷)后,其组织为以板条马氏体和条状无碳贝氏体为主、并有少量细条状铁素体的复合组织,晶粒细小均匀.由于780℃亚温正火后材料强度和塑韧性都得到提高,工业考核也证明780℃亚温正火延长H22-40SiMnCrNMoA钎杆寿命比调质处理、正火处理以及亚温淬火更显著.

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H22—40SiMnCrNiMoA钎杆的亚温正火延寿处理

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