Towards high-temperature applications of aluminium alloys enabled by additive manufacturing

• DOI: 10.1080/09506608.2021.1951580
• Publication Date: 2021-07-16T18:45:02Z
• Authors: Richard A. Michi; Alex Plotkowski; Amit Shyam; Ryan R. Dehoff; Sudarsanam Suresh...
• Keywords: 0203 mechanical engineering; 02 engineering and technology

Research on powder-based additive manufacturing of aluminium alloys is rapidly increasing, and recent breakthroughs in printing defect-free parts promise substantial movement beyond traditional Al–Si–Mg) systems. One potential technological advantage manufacturing, however, has received little attention: the design for use at T > ~200°C, or ~1/2 absolute melting temperature aluminium. Besides offering lightweighting improved energy efficiency through replacement ferrous, titanium, nickel-based 200–450°C, development such will reduce economic roadblocks widespread implementation manufacturing. We herein review existing literature three categories high-temperature alloys, discuss strategies optimizing microstructures elevated-temperature performance, highlight gaps current research. Although extensive microstructural characterisation been performed these we conclude that evaluations their mechanical properties corrosion responses are severely deficient.