Comparison of Additive Manufactured and Conventional 316L Stainless Steels
Comparison of Additive Manufactured and Conventional 316L Stainless Steels
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DOI：
10.1017/s143192761500313x
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发表时间：
2015-08
影响因子：
2.8
通讯作者：
Joven J.H. Lim;A. R. C. Malheiros;G. Bertali;C. Long;P. Freyer;M. G. Burke
中科院分区：
文献类型：
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作者：
Joven J.H. Lim;A. R. C. Malheiros;G. Bertali;C. Long;P. Freyer;M. G. Burke
J. J. H. Lim、A. R. C. Malheiros、G. Bertali、C. J. Long、P. D. Freyer 和 M. G. Burke 1. 曼彻斯特大学材料学院材料性能中心，曼彻斯特（英国） 2 Westinghouse Electric Company LLC，Hopkins，SC 29061（美国） 3 Westinghouse Electric Company LLC，匹兹堡，PA 15235（美国） 增材制造(AM) 技术提供了高度的设计自由度，并且能够生产具有定制特性的近净形状复杂组件 [1, 2]。这些独特的性能可节省原材料成本并简化制造链流程。因此，通过增材制造进行微观结构设计的前景对于制造核电站结构部件极具吸引力。然而，在这种控制水平下，在增材制造用于“真正的”工程应用之前，需要解决工艺引起的缺陷，例如孔隙率[3]、残余应力[4]和优先晶粒生长方向[5]。为了克服这些缺陷，了解增材制造材料的微观结构、加工和机械性能之间的联系至关重要。
J. J. H. Lim, A. R. C. Malheiros, G. Bertali, C. J. Long, P. D. Freyer and M. G. Burke 1. Material Performance Centre, School of Materials, University of Manchester, Manchester (UK) 2 Westinghouse Electric Company LLC, Hopkins, SC 29061 (USA) 3 Westinghouse Electric Company LLC, Pittsburgh, PA 15235 (USA) Additive manufacturing (AM) technology provides a high degree of design freedom and is capable of producing near-net-shape sophisticated components with tailored properties [1, 2]. These unique properties provide savings in terms of raw material costs and a simplified manufacturing chain process. Thus, the prospect of microstructural design through AM is extremely attractive for manufacturing structural components for nuclear power plants. However, with this level of control, process-induced imperfections, such as porosity [3], residual stress [4] and preferential grain growth orientation [5], need to be addressed before AM can be used for ‘real’ engineering applications. In order to overcome these imperfections, it is crucial to understand the connection between microstructure, processing and mechanical properties of AM materials.