Effects of Stress-Relieving Heat Treatment on Impact Toughness of Direct Metal Laser Sintering (DMLS)-Produced Ti6Al4V (ELI) Parts
| dc.contributor.author | Muiruri, Amos | |
| dc.contributor.author | Maringa, Maina | |
| dc.contributor.author | Du Preez, Willie | |
| dc.contributor.author | Masu, Leonard | |
| dc.date.accessioned | 2021-01-02T17:24:57Z | |
| dc.date.available | 2021-01-02T17:24:57Z | |
| dc.date.issued | 2019-10-21 | |
| dc.description | Published Article | en_US |
| dc.description.abstract | The impact toughness of as-built (AB) and stressed-relieved (SR) direct metal laser sintering-produced Ti6Al4V (ELI) was investigated using the standard Charpy impact test over the temperature range of 130 C to 250 C. Stressrelieving heat treatment was conducted at 650 C for a soaking period of 3 h in argon gas atmosphere. The results showed improvements in the impact toughness after stress-relieving heat treatment. Stress relieving also shifted the established ductile-to-brittle transition temperature to lower temperatures. Comparative analysis of the impact toughness values for AB and SR specimens at ambient temperature showed them to be 48% and 22% lower than recommended values for use in aircraft structures, respectively. | en_US |
| dc.identifier.issn | 1047-4838 | |
| dc.identifier.uri | http://hdl.handle.net/11462/2085 | |
| dc.language.iso | en | en_US |
| dc.publisher | The Journal of The Minerals, Metals & Materials Society | en_US |
| dc.title | Effects of Stress-Relieving Heat Treatment on Impact Toughness of Direct Metal Laser Sintering (DMLS)-Produced Ti6Al4V (ELI) Parts | en_US |
| dc.type | Article | en_US |
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