Effect of reinforcement phase on the mechanical property of tungsten nanocomposite synthesized by spark plasma sintering
- Kongju National Univ., Cheonan (Korea)
- Korea Institute of Industrial Technology, Incheon (Korea)
- Ames Lab., Ames, IA (United States)
- IFW Dresden, Dresden (Germany)
- IFW Dresden, Dresden (Germany); TU Dresden, Dresden (Germany)
Nanostructured tungsten composites were fabricated by spark plasma sintering of nanostructured composite powders. The composite powders, which were synthesized by mechanical milling of tungsten and Ni-based alloy powders, are comprised of alternating layers of tungsten and metallic glass several hundred nanometers in size. The mechanical behavior of the nanostructured W composite is similar to pure tungsten, however, in contrast to monolithic pure tungsten, some macroscopic compressive plasticity accompanies the enhanced maximum strength up to 2.4 GPa by introducing reinforcement. As a result, we have found that the mechanical properties of the composites strongly depend on the uniformity of the nano-grained tungsten matrix and reinforcement phase distribution.
- Research Organization:
- Ames Laboratory (AMES), Ames, IA (United States)
- Sponsoring Organization:
- USDOE
- Grant/Contract Number:
- 2014-2020-103910; AC02-07CH11358
- OSTI ID:
- 1235584
- Alternate ID(s):
- OSTI ID: 1359209
- Report Number(s):
- IS-J-8886; PII: S0263436815300834
- Journal Information:
- International Journal of Refractory and Hard Metals, Vol. 54, Issue C; ISSN 0263-4368
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
Selective laser melting of high-performance pure tungsten: parameter design, densification behavior and mechanical properties
|
journal | April 2018 |
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