Abstract：A method was proposed to measure a-N cures of thermal fatigue of metals by measuring surface crack other than fracture crack with "single group of specimens" other than "multiple groups of specimens".The index of toughness necessary to measure surface crack length is determined by comparing the actual observation and measured crack length under the same surface toughness condition at the same cycles.The special operation method for measuring a-N curves with "single group of specimens" was also presented.A common rule of thermal fatigue of metals was analyzed and a method for fitting a-N curves was proposed.
韩增祥. 金属热疲劳a-N曲线测定方法的研究[J]. 材料工程, 2007, 0(11): 45-48,53.
HAN Zeng-xiang. Study on a Method for Measuring a-N Curves of Thermal Fatigue of Metals. Journal of Materials Engineering, 2007, 0(11): 45-48,53.