微观结构
材料科学
板条
马氏体
回火
铁氧体(磁铁)
阴极射线
珠光体
冶金
融合
复合材料
碳纤维
电子
奥氏体
量子力学
语言学
复合数
物理
哲学
作者
Yunwei Gui,Huakang Bian,Kazuhiko Aoyagi,Akihiko Chiba
标识
DOI:10.1016/j.matlet.2022.133096
摘要
The microstructure and hardness of S30C carbon steel fabricated via powder bed fusion using an electron beam (PBF-EB) and the influence of subsequent heat treatments were firstly investigated. The microstructure of as-built S30C, comprising ferrite and pearlite with an amount of dislocations. The microstructure and hardness showed a height-dependent relationship along building direction. The quenched sample showed lath martensite with maximum hardness (HV 643 ± 18), which transformed to tempered martensite after further tempering. This study provides a research basis for the application of PBF-EB technology in the development of high-performance carbon steel.
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