About this Abstract |
| Meeting |
MS&T25: Materials Science & Technology
|
| Symposium
|
Advances in Titanium Technology
|
| Presentation Title |
Development and Characterization of Titanium Alloys for Powder Metallurgy |
| Author(s) |
Brian A. Welk, Andrew H. Baker, Nicole Hudak, Paraic O'Kelly, G. Babu Viswanathan, Hamish L. Fraser |
| On-Site Speaker (Planned) |
Brian A. Welk |
| Abstract Scope |
Additive manufacturing and hot isostatic pressing of titanium alloys have been focused on traditional alloys such as Ti-6Al-4V. Typically, beta eutectoid stabilizers such as Fe, Ni or Co are only added in small amounts due to the issue of beta fleck (i.e., element segregation) which occurs during traditional melt processes due to the low cooling rate. Recent research has shown that due to the high cooling rate in AM, beta eutectoid stabilizers, in quantities higher than traditionally tolerated, can be added to titanium alloys resulting in an equiaxed grain structure and no segregation. In this work, titanium alloys modified with beta eutectoid stabilizers were deposited using additive manufacturing. Heat treatments were performed to determine the effect of the alloy additions on the microstructure and mechanical properties. Elemental powder blends of select alloys were HIP’d to investigate the potential of producing large components with no beta fleck. |
| Keywords |
Aluminum, |