摘要
通过准静态拉伸测试、显微硬度测试研究短时退火对含碳量为0.10%（质量分数）的纳米层片结构低碳钢加工硬化的影响,利用扫描电镜观察微观结构和断口形貌。结果表明：短时退火处理使轧制态10号钢试样软硬微区组织不均匀性增加,增强了加工硬化能力。随着退火温度升高,晶粒长大,层片结构不明显,导致加工硬化能力减弱。
Effect of short-time annealing on work hardening of low carbon steel with O. 10% C（ mass fraction）and a nano lamellar structure was studied by quasi-static tensile test and microhardness test, and the microstructure and fracture surface were observed by SEM. The results show that the inhomogeneity of the soft and hard microstructure zones of rolled steel sample is increased by short-time annealing treatment, and the work hardening ability is enhanced. With the increase of annealing temperature, the grain size increases and the lamellar structure are not obvious, which leads to the weakening of the work hardening ability.
出处
《金属热处理》
CAS
CSCD
北大核心
2018年第2期182-186,共5页
Heat Treatment of Metals
基金
国家自然科学基金(11572328,11072243)
关键词
低碳钢
退火
力学性能
加工硬化
微观组织
low carbon steel
annealing
mechanical properties
work hardening
microstructure
