Effect of scanning strategy on grain structure and crystallographic texture of Inconel 718 processed by selective laser melting

被引：2
|
作者：
H.Y.Wan [1 ,2 ]
Z.J.Zhou [3 ]
C.P.Li [3 ]
G.F.Chen [3 ]
G.P.Zhang [1 ]
机构：
[1] Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences
[2] School of Materials Science and Engineering, University of Science and Technology of China
[3] Materials & Manufacturing Qualification Group, Corporate Technology, Siemens Ltd.
来源：
JournalofMaterialsScience&Technology | 2018年 / 34卷 / 10期
基金：
中国国家自然科学基金;
关键词：
Selective laser melting; Additive manufacturing; Scanning strategy; Texture; Grain structure;
D O I：
暂无
中图分类号：
TG146.15 []; TN249 [激光的应用];
学科分类号：
摘要：
Two types of scanning strategies were adopted to study the effect of scanning strategy on grain structure and crystallographic texture of selective laser melted(SLM) Inconel 718. The results show that bidirectional scanning without and with a 90?-rotation for every layer produced the bimodal grain structure and the directional columnar grain structure, respectively. Controlling the heat flux direction between the successive layers via scanning strategy enabled the formation of such different grain structures. Furthermore, when the 90?-rotation was applied, the competitive grain growth mechanism became more pronounced and the strong cube texture developed.
引用
收藏
页码：1799 / 1804
页数：6
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