Microstructural control in a Ti-based alloy by changing laser processing mode and power during direct laser deposition
Research output: Contribution to journal › Article › peer-review
Standard
Microstructural control in a Ti-based alloy by changing laser processing mode and power during direct laser deposition. / Ravi, G. A.; Qiu, Chunlei; Attallah, Moataz M.
In: Materials Letters, Vol. 179, 15.09.2016, p. 104-108.Research output: Contribution to journal › Article › peer-review
Harvard
APA
Vancouver
Author
Bibtex
}
RIS
TY - JOUR
T1 - Microstructural control in a Ti-based alloy by changing laser processing mode and power during direct laser deposition
AU - Ravi, G. A.
AU - Qiu, Chunlei
AU - Attallah, Moataz M.
PY - 2016/9/15
Y1 - 2016/9/15
N2 - Ti-6Al-4V samples have been fabricated by direct laser deposition using different laser powers and two different laser processing modes, continuous wave (CW) mode and CW+PW (pulsed wave) mode. The as-fabricated microstructure was investigated using photography, optical microscopy and secondary electron microscopy. It was found that both laser mode and laser power show significant influence on grain structure. The CW mode generally leads to well-developed large columnar grains whereas the CW+PW mode tends to give rise to much finer equiaxed grains. Higher laser power was found to result in larger grains and coarser microstructure.
AB - Ti-6Al-4V samples have been fabricated by direct laser deposition using different laser powers and two different laser processing modes, continuous wave (CW) mode and CW+PW (pulsed wave) mode. The as-fabricated microstructure was investigated using photography, optical microscopy and secondary electron microscopy. It was found that both laser mode and laser power show significant influence on grain structure. The CW mode generally leads to well-developed large columnar grains whereas the CW+PW mode tends to give rise to much finer equiaxed grains. Higher laser power was found to result in larger grains and coarser microstructure.
KW - Direct Laser Deposition
KW - Laser Mode
KW - Microstructure
KW - Ti-6Al-4V
UR - http://www.scopus.com/inward/record.url?scp=84969172354&partnerID=8YFLogxK
U2 - 10.1016/j.matlet.2016.05.038
DO - 10.1016/j.matlet.2016.05.038
M3 - Article
AN - SCOPUS:84969172354
VL - 179
SP - 104
EP - 108
JO - Materials Letters
JF - Materials Letters
SN - 0167-577X
ER -