摘要
用氮的质量分数为103×10^-6、88×10^-6、56×10^-6的带钢进行钢材拉伸应变时效试验，得出3种氮含量的钢都有明显的应变时效现象，钢材的应变时效现象随氮含量增加而增加。应变时效后钢材的屈服强度大幅提高，抗拉强度与屈服强度的比值减小，伸长率降低，材料脆化倾向增加。
The tensile strain aging experiments of the strip steel with the nitrogen content of 103 × 10^-6, 88 × 10^-6 and 56 ×10^-6, respectively, were conducted. The results showed that the tensile strain aging phenomenon of the steel with the three kinds of nitrogen content was obvious, and the higher the nitrogen content of steel, the stronger the strain ag- ing phenomenon. After the strain aging, the yield strength of the steel increased greatly, the ratio of the tensile strength and the yield strength decreased, the elongation decreased, and the tendency of brittle material increased.
作者
李江华
赵征宇
杨辉
杨培红
李曼琳
LI Jiang-hua1, ZHAO Zheng-yu2, YANG Hui2, YANG Pei-hong3, LI Man-lin2(1. Technical Center, Kunming Iron and Steel Limited by Share Ltd., Kunming 650302, China; 2. Yuxi Xinxing Iron and Steel Co., Ltd., Yuxi 653100, China; 3. Yunnan Kun Steel Asset Management Co., Ltd., Kunming 650302, Chin)
出处
《物理测试》
CAS
2018年第1期12-15,共4页
Physics Examination and Testing
关键词
低碳钢
应变时效
屈服强度
氮含量
low carbon steel
strain aging
yield strength
nitrogen content
