| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7987648 | Nuclear Materials and Energy | 2016 | 6 Pages |
Abstract
W, W-TaC, and W-TiC materials were subjected to heat-load tests in an electron beam facility (10Â keV, 8Â kW) at 100 pulses. After heat loading, severe cracks and plastic deformation were detected on the surface of pure W materials. However, plastic deformation was the primary change on the surfaces of W-TaC and W-TiC alloys. This phenomenon was due to the second-phase (TaC and TiC) particles dispersed in the W matrix, which strengthened the grain boundaries and prevented crack formation and propagation. In addition, the microhardness of W and W-TiC obviously decreased, whereas that of W-TaC did not change considerably before and after heat loading.
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Authors
Xiao-Yue Tan, Ping Li, Lai-Ma Luo, Qiu Xu, Kazutoshi Tokunaga, Xiang Zan, Yu-Cheng Wu,