摘要
研究了时效温度和保温时间对时效硬化型超低碳含铜钢的显微组织和硬度的影响。对时效处理后的含铜钢进行了显微硬度测试及组织观察,分析了时效工艺与硬度、显微组织及时效析出粒子之间的对应关系。用电子显微镜观察到了峰值时效试样及过时效试样中析出的细小ε Cu粒子以及时效初期形成的过渡结构,证实了铜在钢中的时效硬化作用。
The effects of the aging temperature and holding time on the microstructure and hardness of the ultra-low-carbon steel bearing copper were investigated. The corresponding relationships between aging process and hardness, microstructure, aging precipitated particles were analyzed after testing microhardness and observing the microstructure of the aged steel. Both the fine ε-Cu particles precipitated in specimens of peak aging and overaging, and the transient structure formed in the early stage of aging were observed by high resolution electron microscope (HREM), and thus the age hardening effect of copper in steels have been proved.
出处
《钢铁研究学报》
CAS
CSCD
北大核心
2004年第4期61-63,67,共4页
Journal of Iron and Steel Research
关键词
超低碳
含铜钢
时效硬化
ε-Cu粒子析出
ultra-low-carbon
steel bearing copper
age hardening
ε-Cu precipitation
