摘要
Nb-18Si-24Ti-2Cr-2Al-2Hf (at.%) alloy was fabricated by selective laser melting (SLM). Results showed that an ultra-fined microstructure was achieved by SLM. After oxidation at 1250 °C for 50 h, the weight gains of Nb-Si based alloys via SLM and vacuum induction melting (VIM) were 96.48 mg/cm2 and 198.91 mg/cm2, respectively. Compared with the VIM alloy, the SLM alloy exhibited a slower oxidation kinetic rate, featured by the formation of a more compact oxide scale without spallation. The improvement in the oxidation resistance was attributed to the microstructure refinement.
源语言 | 英语 |
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页(从-至) | 260-269 |
页数 | 10 |
期刊 | Corrosion Science |
卷 | 127 |
DOI | |
出版状态 | 已出版 - 10月 2017 |
已对外发布 | 是 |