4140圆管锻件热处理裂纹检验分析

哈曜，徐加银，陈琳，汪海潮，陈昌华

Inspection and analysis of the heat treatment cracks of 4140 round tube forging

HA Yao，XU Jia-yin，CHEN Lin，WANG Hai-chao，CHEN Chang-hua

. 2017, (6): 38 -42 . DOI: 10.13228/j.boyuan.issn1001-0777.20170068