Abstract
The prior β grain structure is recognized to be an important factor governing the mechanical properties of laser additive manufacturing (LAM) titanium alloys (ti-alloys) components. Five kinds of ti-alloys plates were fabricated by LAM process aiming to investigate the solidification behavior and grain morphology. Full columnar grains, full equiaxed grains and a special mixed grains structure were observed in LAM TC4, TB6 and TC11 plates, respectively, indicating that the formation tendency and volume fraction of equiaxed grains in LAM ti-alloys plates increase gradually with the increasing alloying content. It was proposed the formation of equiaxed grains is a multifactor functioning result of the constitutional supercooling and the remaining powders in the local melting pool.
| Original language | English |
|---|---|
| Pages (from-to) | 712-716 |
| Number of pages | 5 |
| Journal | Journal of Alloys and Compounds |
| Volume | 777 |
| DOIs | |
| State | Published - 10 Mar 2019 |
Keywords
- Columnar grains
- Constitutional supercooling
- Equiaxed grains
- Laser additive manufacturing
- Solidification
- Titanium alloy
Fingerprint
Dive into the research topics of 'Solidification behavior and grain morphology of laser additive manufacturing titanium alloys'. Together they form a unique fingerprint.Cite this
- APA
- Author
- BIBTEX
- Harvard
- Standard
- RIS
- Vancouver