涂益友,刘响亮,蒋建清,蔡磊,卞建春

• 1:东南大学材料科学与工程系
• 2:东南大学材料科学与工程系
• 3:东南大学材料科学与工程系
• 4:江苏法尔胜集团公司

摘要(Abstract)：

用TEM、XRD研究了强塑性变形(ε=2.60)SWRH72A钢丝经不同温度(100-400℃)退火处理后的微观结构变化。XRD分析显示强塑性变形引起SWRH72A钢丝中渗碳体回溶,部分碳原子溶入铁素体形成过饱和铁素体,过饱和铁素体中含碳量约0.34at%。由TEM分析可知强塑性变形钢丝经200-300℃退火,由于渗碳体颗粒的弥散析出,钢丝强度升高到2400MPa。退火温度进一步升高到400℃,渗碳体片开始球化,钢丝强度大幅降低,但塑性显著增加。

关键词(KeyWords)： 珠光体钢;强塑性变形;渗碳体回溶;退火

Abstract:

Keywords:

基金项目(Foundation): 江苏省科技成果转化专项资金项目(BA2004019)

作者(Author): 涂益友,刘响亮,蒋建清,蔡磊,卞建春

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