摘要
对锻造态的1.37%C超高碳钢采用离异共析转变的工艺,得到铁素体基体上弥散分布碳化物颗粒的组织,随后进行二次正火热处理工艺。扫描电镜分析表明:在相同的保温时间内,随正火温度的升高,片层状珠光体越来越密集。室温拉伸试验显示出,超高碳钢获得了优异的综合力学性能,具有明显的屈服现象,强度和塑性均很好。
The forged ultra-high carbon steel （UHCS） containing 1.37% carbon was studied through spheroidizing process of divorced-eutectoid transformation （DET）, the microstructure of fine carbide particles distributing dispersedly in ferrite matrix was formed, and then the second normalizing treatment technology was carried on. The result of SEM analysis shows that, within the same holding time, with normalizing temperature increasing, the layer-meso structure is denser and denser. Tensile testing at ambient temperature shows that the UHCS possesses excellent mechanical properties, and is an excellent structural material.
出处
《热加工工艺》
CSCD
北大核心
2007年第22期54-56,共3页
Hot Working Technology
基金
国家自然科学基金资助项目(50571077)
陕西省科技攻关资助项目(2004KD7-G18)
