Abstract
Laser metal deposition technique was used for the fabrication of Ti–Al–Cu coating on Ti–6Al–4V Alloy. The microstructure and elemental and phase composition of coatings were studied. The SEM images showed the homogeneous distribution of Cu addition in Ti–10Al–9Cu at scanning speed of 1.0 m/min. Strong metallurgical bond without pores and cracks were observed between the coating and the substrate. Grain refinement was observed within the microstructure as the grains grew in a columnar and dendritic pattern in a counter direction to heat flow. However, the cross-section microstructures of Ti–10Al–6Cu and Ti–10Al–3Cu at 0.8 and 1.0 m/min scanning speed and laser power of 1000 and 1100 W showed minute pores and cracks. The existence of amorphous phase revealed via XRD was also observed in the coatings. The microstructure of these alloys is highly influenced by processes involving plastic deformation and thermal treatments which, in effect, determines the mechanical properties adhering to desired properties. The microhardness testing results indicated that the fabricated coatings had enhanced by 61.9% as compared to the micro-hardness of the Ti–6Al–4V alloy substrate.
| Original language | English |
|---|---|
| Title of host publication | Materials Processing Fundamentals, 2019 |
| Editors | Samuel Wagstaff, Antoine Allanore, Guillaume Lambotte, Jonghyun Lee |
| Publisher | Springer International Publishing |
| Pages | 143-152 |
| Number of pages | 10 |
| ISBN (Print) | 9783030057275 |
| DOIs | |
| Publication status | Published - 2019 |
| Event | Materials Processing Fundamentals Symposium held at the TMS Annual Meeting and Exhibition, 2019 - San Antonio, United States Duration: 10 Mar 2019 → 14 Mar 2019 |
Publication series
| Name | Minerals, Metals and Materials Series |
|---|---|
| ISSN (Print) | 2367-1181 |
| ISSN (Electronic) | 2367-1696 |
Conference
| Conference | Materials Processing Fundamentals Symposium held at the TMS Annual Meeting and Exhibition, 2019 |
|---|---|
| Country/Territory | United States |
| City | San Antonio |
| Period | 10/03/19 → 14/03/19 |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 9 Industry, Innovation, and Infrastructure
Keywords
- Copper
- Hardness
- Microstructure
- Temperature distribution
- Ti–6Al–4V alloy
- Ti–Al–Cu coatings
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Energy Engineering and Power Technology
- Mechanics of Materials
- Metals and Alloys
- Materials Chemistry
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