dc.contributor.author |
Lengopeng, T
|
|
dc.contributor.author |
Tlotleng, Monnamme
|
|
dc.contributor.author |
Pityana, Sisa L
|
|
dc.date.accessioned |
2017-04-10T10:34:09Z |
|
dc.date.available |
2017-04-10T10:34:09Z |
|
dc.date.issued |
2016-11 |
|
dc.identifier.citation |
Lengopeng, T., Tlotleng, M. and Pityana, S. 2016. Microstructural evolution of the LENS manufactured TiAl structure. In: 17th Annual Conference of the Rapid Product Development Association of South Africa (RAPDASA), 2-4 November 2016, Vaal University of Technology |
en_US |
dc.identifier.uri |
http://hdl.handle.net/10204/8996
|
|
dc.description |
17th Annual Conference of the Rapid Product Development Association of South Africa (RAPDASA), 2-4 November 2016, Vaal University of Technology |
en_US |
dc.description.abstract |
The advent of additive manufacturing presented the new-era where complex structures can be prototype and rapidly manufactured from a computer aided device file. Robust industries such as the aerospace and medicinal require 3D printed complex components which can be reproduced and are without defects. The laser engineered net-shaping (LENS) system is an additive manufacturing machines and can be used for industrial research and prototyping. In this paper, the Optomec LENS; a 1 kW maximum power output system, was used to fabricate a cubic structure of titanium aluminides from elemental titanium (Ti) and aluminium (Al) by in-situ alloying. This is a novel approach since the traditional methods used in the production of TiAl structures focus primarily on powder metallurgy and electron beam melting (EBM) process where pre-alloyed powders instead are used. These pre-alloyed powders are superior since they already have oxidation promoting and ductility stabilisers element. The resulting microstructure of the in-situ alloyed Ti and Al powders were evaluated, bottom-up, on the produced structure. The SEM images concluded a lamellar rich microstructure at the top, middle and the bottom. The HAZ showed a hexagonal structure. The EDS map of the different regions concluded Ti:Al ratio of 3:1 which could mean the overall composition was Ti3Al. |
en_US |
dc.language.iso |
en |
en_US |
dc.relation.ispartofseries |
Workflow;18030 |
|
dc.subject |
Aluminium |
en_US |
dc.subject |
Scanning electron microscope |
en_US |
dc.subject |
LENS |
en_US |
dc.subject |
Microstructures |
en_US |
dc.subject |
Titanium |
en_US |
dc.subject |
Titanium Aluminides |
en_US |
dc.title |
Microstructural evolution of the LENS manufactured TiAl structure |
en_US |
dc.type |
Conference Presentation |
en_US |
dc.identifier.apacitation |
Lengopeng, T., Tlotleng, M., & Pityana, S. L. (2016). Microstructural evolution of the LENS manufactured TiAl structure. http://hdl.handle.net/10204/8996 |
en_ZA |
dc.identifier.chicagocitation |
Lengopeng, T, Monnamme Tlotleng, and Sisa L Pityana. "Microstructural evolution of the LENS manufactured TiAl structure." (2016): http://hdl.handle.net/10204/8996 |
en_ZA |
dc.identifier.vancouvercitation |
Lengopeng T, Tlotleng M, Pityana SL, Microstructural evolution of the LENS manufactured TiAl structure; 2016. http://hdl.handle.net/10204/8996 . |
en_ZA |
dc.identifier.ris |
TY - Conference Presentation
AU - Lengopeng, T
AU - Tlotleng, Monnamme
AU - Pityana, Sisa L
AB - The advent of additive manufacturing presented the new-era where complex structures can be prototype and rapidly manufactured from a computer aided device file. Robust industries such as the aerospace and medicinal require 3D printed complex components which can be reproduced and are without defects. The laser engineered net-shaping (LENS) system is an additive manufacturing machines and can be used for industrial research and prototyping. In this paper, the Optomec LENS; a 1 kW maximum power output system, was used to fabricate a cubic structure of titanium aluminides from elemental titanium (Ti) and aluminium (Al) by in-situ alloying. This is a novel approach since the traditional methods used in the production of TiAl structures focus primarily on powder metallurgy and electron beam melting (EBM) process where pre-alloyed powders instead are used. These pre-alloyed powders are superior since they already have oxidation promoting and ductility stabilisers element. The resulting microstructure of the in-situ alloyed Ti and Al powders were evaluated, bottom-up, on the produced structure. The SEM images concluded a lamellar rich microstructure at the top, middle and the bottom. The HAZ showed a hexagonal structure. The EDS map of the different regions concluded Ti:Al ratio of 3:1 which could mean the overall composition was Ti3Al.
DA - 2016-11
DB - ResearchSpace
DP - CSIR
KW - Aluminium
KW - Scanning electron microscope
KW - LENS
KW - Microstructures
KW - Titanium
KW - Titanium Aluminides
LK - https://researchspace.csir.co.za
PY - 2016
T1 - Microstructural evolution of the LENS manufactured TiAl structure
TI - Microstructural evolution of the LENS manufactured TiAl structure
UR - http://hdl.handle.net/10204/8996
ER -
|
en_ZA |