Please use this identifier to cite or link to this item:
https://hdl.handle.net/10356/79369
Title: | An experimental and simulation study on build thickness dependent microstructure for electron beam melted Ti-6Al-4V | Authors: | Tan, Xipeng Kok, Yihong Tan, Yu Jun Vastola, Guglielmo Pei, Qing Xiang Zhang, Gang Zhang, Yong-Wei Tor, Shu Beng Leong, Kah Fai Chua, Chee Kai |
Keywords: | DRNTU::Engineering::Materials::Metallic materials::Alloys | Issue Date: | 2015 | Source: | Tan, X., Kok, Y., Tan, Y. J., Vastola, G., Pei, Q. X., Zhang, G., et al. (2015). An experimental and simulation study on build thickness dependent microstructure for electron beam melted Ti-6Al-4V. Journal of alloys and compounds, 646, 303-309. | Series/Report no.: | Journal of alloys and compounds | Abstract: | Build thickness dependent microstructure of electron beam melted (EBM®) Ti–6Al–4V has been investigated from both experiment and simulation using four block samples with thicknesses of 1, 5, 10 and 20 mm. We observe a mixed microstructure of alternate α/β with some α′ martensite inside the 1 mm-thick sample. By contrast, only the alternate α/β microstructure with both colony and basket-weave morphologies occurs inside the 5 mm-, 10 mm- and 20 mm-thick samples. It is found that β spacing is constantly increased with the build thickness, leading to an obvious decrease in microhardness. Finite element method (FEM) simulations show that cooling rates and thermal profiles during EBM process are favorable for the formation of martensite. Moreover, full-scale FEM simulations reveal that the average temperature inside the samples is higher as the build thickness increases. It suggests that martensitic decomposition is faster in thicker samples, which is in good agreement with the experimental observations. | URI: | https://hdl.handle.net/10356/79369 http://hdl.handle.net/10220/26154 |
ISSN: | 0925-8388 | DOI: | 10.1016/j.jallcom.2015.05.178 | Schools: | School of Mechanical and Aerospace Engineering | Rights: | © 2015 Elsevier B.V. This is the author created version of a work that has been peer reviewed and accepted for publication by Journal of alloys and compounds, Elsevier B.V. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [http://dx.doi.org/10.1016/j.jallcom.2015.05.178]. | Fulltext Permission: | open | Fulltext Availability: | With Fulltext |
Appears in Collections: | MAE Journal Articles |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Accepted Manuscript.pdf | 3.48 MB | Adobe PDF | View/Open |
SCOPUSTM
Citations
5
108
Updated on Mar 23, 2024
Web of ScienceTM
Citations
5
93
Updated on Oct 27, 2023
Page view(s) 50
611
Updated on Mar 27, 2024
Download(s) 5
527
Updated on Mar 27, 2024
Google ScholarTM
Check
Altmetric
Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.