Al42CrMo螺栓钢淬透性及组织的影响
吕超然1, 徐乐1(), 史超2, 刘进德3, 蒋伟斌4, 王毛球1
Effect of Al on Hardenability and Microstructure of 42CrMo Bolt Steel
LU Chaoran1, XU Le1(), SHI Chao2, LIU Jinde3, JIANG Weibin4, WANG Maoqiu1

图11. 含晶界针尖试样以及通过3DAP测得针尖处金属元素含量

Fig.11. Needle tip samples with grain boundary (a) and three-dimensional spatial distribution of alloy element atoms (b), metal element content at the needle tip (c) measured by 3DAP
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