Abstract
AbstractSelective laser melting (SLM) of Ti6Al4V is a very promising method to produce complex geometries for challenging impact applications. Hot isostatic pressing (HIP) is typically used to improve fatigue behavior, ductility and material reliability of parts produced by SLM. However, this treatment leads to an undesired deterioration of strength. The present study addresses that issue by investigating the effect of two different HIP conditions on the mechanical properties under compression and tensile loading for a strain rate range spanning up to 6 order of magnitudes and two different temperatures. We found a significant tensile-compression anisotropy in both flow stress and strain rate sensitivity depending on the HIP temperatures. These findings was correlated with microstructures and damage mechanisms.
Funder
Bundesministerium der Verteidigung
Wehrwissenschaftliches Institut für Werk-, Explosiv- und Betriebsstoffe
Publisher
Springer Science and Business Media LLC
Subject
Mechanics of Materials,Materials Science (miscellaneous)
Reference40 articles.
1. Gangireddy S, Komarasamy M, Faierson EJ, Mishra RS (2019) High strain rate behavior of Ti-6Al-4V octet lattice structures additively manufactured by selective laser melting (SLM). Mater Sci Eng A 745:231–239
2. Liu S, Shin CY (2019) Additive manufacturing of Ti6Al4V alloy: a review. Mater Des 164:107552
3. Aguis D, Kourousis KI, Wallbrink C (2018) A review of the as built SLM Ti-6Al-4V mechanical properties towards achieving fatigue resistant designs. Metals 8:15
4. Vrancken B, Thijs L, Kruth HP, Humbeek JV (2012) Heat treatment of Ti6Al4V produced by selective laser melting: microstructure and mechanical properties. J Alloys Compd 541:177–185
5. Ter Haar GM, Becker TH (2018) Selective laser melting produced Ti-6Al-4V: post-process heat treatments to achieve superior tensile properties. Materials 21:146f
Cited by
3 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献