论文部分内容阅读
对GH8 71合金的裂纹扩展速率及扩展行为的研究结果表明 :由于真空冶炼降低了弱化合金晶界的有害元素Pb含量 ,显著降低了该合金的裂纹扩展速率
The results of the study on the crack growth rate and the spreading behavior of GH8 71 alloy show that vacuum cracking reduces the content of Pb, which is a harmful element in the grain boundaries, and significantly reduces the crack growth rate