20Mn2钢棒低温冲击不合格原因分析

李翼飞，朱斌，王春奕，张全新

Analysis on unqualified reason of 20Mn2 steel bar under low temperature impact

LI Yifei，ZHU Bin，WANG Chunyi，ZHANG Quanxin

物理测试 . 2021, (3): 53 . DOI: 10.13228/j.boyuan.issn1001-0777.20200085