Microstructural evolution and mechanical properties of maraging steel produced by wire + arc additive manufacture process
By Xiangfang Xu, S. Ganguly, Jialuo Ding, Guo Shun, Stewart W. Williams, Filomeno Martina. Materials Characterization, 2017
208 citations recorded by the source corpus.
Abstract Wire + arc additive manufacture is developed for producing large-scale metallic components. In this paper, maraging steel parts were produced, and the microstructure and mechanical properties were investigated. The microhardness and tensile strength of the as deposited alloy reduced from the bottom to the top due to the transient thermal cycling, which resulted in partial aging and non-uniform formation of intermetallic compounds along the building direction. Solutionizing, followed by 3 h aging, significantly reduced the microstructural heterogeneity and increased the mechanical properties by 24.7% through the formation of large amounts of finely distributed precipitates. The as deposited alloy possessed superior strength to the wrought alloy in solutionized condition but inferior to the later in aged condition, which was attributed to the less pronounced aging response of the low-angle columnar grains characterized microstructure and the presence of retained and reverted austenite.
Subfields: Mechanical Engineering
View Paper: https://www.semanticscholar.org/paper/356b4ed754eefc5be962a4312270eb214e026fe7
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In Mechanical Engineering
Citations in the corpus
- Tensile properties and microstructural features of 304L austenitic stainless steel produced by wire-and-arc additive manufacturing (2020, background): “Furthermore, very few studies emphasize the effect of the specific microstructural features influencing the mechanical behavior [11, 12].”
- The Current State of Research of Wire Arc Additive Manufacturing (WAAM): A Review (2021, background): “[212] and others [215,217] as well as work on maraging steels [218] and for other materials due to the highly oriented microstructural growing direction where the anisotropic material properties occur [64,212,221,223].”