材料科学
微观结构
奥氏体
制作
复合材料
原材料
结构材料
复合数
纹理(宇宙学)
马氏体
基质(化学分析)
冶金
计算机科学
化学
有机化学
人工智能
病理
替代医学
图像(数学)
医学
作者
Hongyu Chen,Konrad Kosiba,C. Suryanarayana,Tiwen Lu,Yang Liu,Yonggang Wang,Konda Gokuldoss Prashanth
标识
DOI:10.1080/09506608.2023.2258664
摘要
Laser-based additive manufacturing (LBAM) has shown great potential in the development of new metallic materials, especially in the design and fabrication of metal matrix composites (MMCs). Steel matrix composites (SMCs) as one MMC-type, have been successfully additively manufactured with full density and good performance. This article reviews emerging studies of LBAM-fabricated SMCs, starting from the methods of feedstock preparation including respective merits and challenges. The mechanisms of phase transformation, grain growth and texture development of the steel matrix, as well as the precipitation of reinforcements during rapid solidification inherent to LBAM are demonstrated. Microstructural features of SMCs with different matrix (austenitic, martensitic, duplex and ferritic) and reinforcement types are discussed. The interrelationship between the composition and physical properties of the composite powder, microstructures and mechanical properties of SMCs are disclosed and the involved strengthening mechanisms are discussed. Lastly, conclusions and outlook focusing on emerging trends of LBAM-fabricated SMCs are presented.
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