VARIATION OF IMPACT TOUGHNESS OF AS-BUILT DMLS TI6AL4V (ELI) SPECIMENS WITH TEMPERATURE

Authors

  • Amos Mwangi Muiruri Central University of Technology
  • M Maringa Central University of Technology
  • WB du Preez Central University of Technology
  • LM Masu Vaal University of Technology

DOI:

https://doi.org/10.7166/29-3-2076

Abstract

The response of direct metal laser sintering (DMLS) produced Ti6Al4V (ELI) to impact was investigated using an instrumented Charpy impact test machine and V-notch specimens. Impact toughness testing was conducted over the temperature range of -130oC to 250oC. The effect of the orientation of the V-notch, with reference to the base plate, was investigated. The results indicated that the samples that were produced with the V-notch facing the base plate (LO) had better values of impact toughness than those that were produced with the V-notch facing away from the base plate (UP) over most of the test temperatures. The study further established that as-built DMLS Ti6Al4V (ELI) retains appreciable notch toughness, even at extremely low temperatures

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Published

2018-11-09

How to Cite

Muiruri, A. M., Maringa, M., du Preez, W., & Masu, L. (2018). VARIATION OF IMPACT TOUGHNESS OF AS-BUILT DMLS TI6AL4V (ELI) SPECIMENS WITH TEMPERATURE. The South African Journal of Industrial Engineering, 29(3), 284–298. https://doi.org/10.7166/29-3-2076

Issue

Vol. 29 No. 3 (2018)

Section

Special Edition

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