A study of the microstructural evolution during selective laser melting of Ti–6Al–4V
TL;DR: In this article, the development of the microstructure of the Ti-6Al-4V alloy processed by selective laser melting (SLM) was studied by light optical microscopy.
About: This article is published in Acta Materialia.The article was published on 2010-05-01. It has received 2201 citations till now. The article focuses on the topics: Selective laser melting & Microstructure.
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TL;DR: In this paper, the authors review the emerging research on wire arc additive manufacturing (WAAM) techniques and the commonly used metallic feedstock materials, and also provide a comprehensive over view of the metallurgical and material properties of the deposited parts.
671 citations
TL;DR: In this paper, the current research status of microstructure, properties and heat treatment of SLM processing aluminum alloys is systematically reviewed respectively and a future outlook is given at the end of this review paper.
642 citations
TL;DR: In this article, the service properties of AM parts are described, including physical, mechanical, optical and electrical properties, and an additive manufacturability index is proposed, based on the seven categories of ISO/ASTM AM categories.
636 citations
26 Mar 2014-Materials Science and Engineering A-structural Materials Properties Microstructure and Processing
TL;DR: In this paper, the authors evaluated the fatigue properties of Ti-6Al-4V specimens produced by the Selective Laser Melting additive manufacturing process and found that the fatigue life is significantly lower compared to wrought material.
Abstract: Additive Manufacturing of titanium components holds promise to deliver benefits such as reduced cost, weight and carbon emissions during both manufacture and use. To capitalize on these benefits, it must be shown that the mechanical performance of parts produced by Additive Manufacturing can meet design requirements that are typically based on wrought material performance properties. Of particular concern for safety critical structures are the fatigue properties of parts produced by Additive Manufacturing. This research evaluates the fatigue properties of Ti–6Al–4V specimens produced by the Selective Laser Melting additive manufacturing process. It was found that the fatigue life is significantly lower compared to wrought material. This reduction in fatigue performance was attributed to a variety of issues, such as microstructure, porosity, surface finish and residual stress. There was also found to be a high degree of anisotropy in the fatigue performance associated with the specimen build orientation.
633 citations
TL;DR: In this article, the mechanical properties of Ti-6Al-4V samples produced by selective laser melting (SLM) and electron beam melting (EBM) were evaluated for hardness, tensile, and fatigue tests.
620 citations
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Book•
01 Dec 1994
TL;DR: The Materials Properties Handbook: Titanium Alloys as discussed by the authors provides a data base for information on titanium and its alloys, and the selection of specific alloys for specific applications, including applications, physical properties, corrosion, mechanical properties (including design allowances where available), fatigue, fracture properties, and elevated temperature properties.
Abstract: Comprehensive datasheets on more than 60 titanium alloys More than 200 pages on metallurgy and fabrication procedures Input from more than 50 contributors from several countries Careful editorial review for accuracy and usefulness Materials Properties Handbook: Titanium Alloys provides a data base for information on titanium and its alloys, and the selection of specific alloys for specific applications The most comprehensive titanium data package ever assembled provides extensive information on applications, physical properties, corrosion, mechanical properties (including design allowances where available), fatigue, fracture properties, and elevated temperature properties The appropriate specifications for each alloy are included This international effort has provided a broad information base that has been compiled and reviewed by leading experts within the titanium industry, from several countries, encompassing numerous technology areas Inputs have been obtained from the titanium industry, fabricators, users, government and academia This up-to-date package covers information from almost the inception of the titanium industry, in the 1950s, to mid-1992 The information, organized by alloy, makes this exhaustive collection an easy-to-use data base at your fingertips, which generally includes all the product forms for each alloy The 60-plus data sheets supply not only extensive graphical and tabular information on properties, but the datasheets also describe or illustrate important factors which would aid in the selection of the proper alloy or heat treatment The datasheets are further supplemented with back-ground information on the metallurgy and fabrication characteristics of titanium alloys An especially extensive coverage of properties, processing and metallurgy is provided in the datasheet for the workhorse of the titanium industry, Ti-6Al-4V This compendium includes the newest alloys made public even those still under development In many cases, key references are included for further information on a given subject Comprehensive datasheets provide extensive information on: Applications, Specifications, Corrosion, Mechanical Design Properties, Fatigue and Fracture
2,286 citations
TL;DR: In this article, the effect of the shifting of consecutive single vectors on the process of forming the first layer was studied and the optimal parameters of layer thickness and power input per unit speed for SLS/SLM were determined.
551 citations
TL;DR: The DLF-Ti-6Al-4V approach proved to be efficient and could be further advanced in the field of hard tissue biomaterials and matched American Society of Testing and Materials (ASTM) specifications for the usage of this alloy as medical material.
416 citations
TL;DR: In this article, the influence of the manufacturing strategy on the internal structure and mechanical properties of the components manufactured by selective laser melting technology was analyzed, and the anisotropy of the internal structures and structural properties of fabricated objects were studied.
290 citations
TL;DR: In this article, the authors present a pragmatic engineering model to study aspects of the SLM process using an enthalpy formulation and accounting for shrinkage and laser light penetration, and investigate the importance of evaporation for a set of process parameters relevant to production.
271 citations