A Review on Properties of Aerospace Materials Through Additive Manufacturing

Abstract

Abstract-Additive Manufacturing (AM) process has been effective in producing materials that are being utilized by the aerospace industry in order to improve their performance by increasing their properties. Industry now opts for this technique over conventional methods as it has enormous advantages and applications. This Additive Manufacturing process is capable of producing complex near net shape of parts. The materials that are produced by this technique for aerospace industries are metal alloys, metal matrix composites, polymer matrix composites, ceramic matrix composites and nano-composites. Many of the composite materials are still under research and development. In this study, a literature review on the mechanical properties of the materials that are used in the aerospace industry by AM process is discussed and these properties are also compared with the materials produced by conventional methods. The purpose of this review is to highlight the importance of Additive Manufacturing technique and also understand the effect of this process on the materials tested. During this work, the evolution of materials in the aerospace sector, the basic concept of AM technique, the application of the materials, the properties obtained when processing is done, the limitations and the scope for research are given.

Mechanical and Microstructural Anisotropy of Laser Powder Bed Fusion 316L Stainless Steel

“…Casati et al [27] reported reduced tensile strength with a wide scatter in the elongation to failure in LPBF AISI 316L stainless steel (316L SS) and attributed this to the presence of partially melted powder particles in the microstructure. AM components can also exhibit certain variations in mechanical and microstructural properties between different machines using the same set up, and even among the same parts printed in the same batch on the same platform [28,29].…”