摘要
对钒氮微合金化HRB400高强钢筋的自然时效性能、应变时效性能、韧脆转变温度、金相组织参数及V(CN)析出相进行了研究,结果表明VN微合金化HRB400钢筋具有良好的自然时效性能、应变时效性能,韧脆转变温度低于-20℃,适用于我国大部分地区的建筑,细小弥散分布的V(CN)析出物有益于钢筋强度、塑性的提高。大批量工业化生产实践表明VN微合金化HRB400钢筋产品性能优异、质量稳定可靠。
The natural aging and strain aging property, ductile-brittle transition temperature, microstructure parameters and V （ON） precipitation of VN （16） microalloyed HRB400 steel bar were studied. Results showed that VN- microalloyed steel bar had good natural aging and strain-aging property. With a ductile-brittle transition temperature lower than -20℃, the bar is applicable in buildings in most regions of China. Finely dispersed V （ON） phase improves the strength and ductility of the steel bar. Industrial production showed that VN-microalloyed steel bar had good mechanical property and stable quality.
出处
《安徽冶金》
2016年第1期4-7,11,共5页
Anhui Metallurgy
