Effect of second-phase particles on the properties of W-based materials under high-heat loading

Xiao–Yue –Y Tan; Ping Li; Lai–Ma –M Luo; Qiu Xu; Kazutoshi Tokunaga; Xiang Zan; Yu–Cheng –C Wu

doi:10.1016/j.nme.2016.07.009

Effect of second-phase particles on the properties of W-based materials under high-heat loading

Xiao–Yue –Y Tan, Ping Li, Lai–Ma –M Luo, Qiu Xu, Kazutoshi Tokunaga, Xiang Zan, Yu–Cheng –C Wu

Division of Nuclear Fusion Dynamics

Research output: Contribution to journal › Article

8 Citations (Scopus)

Abstract

W, W-TaC, and W-TiC materials were subjected to heat–load tests in an electron beam facility (10 keV, 8 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.

Original language	English
Pages (from-to)	399-404
Number of pages	6
Journal	Nuclear Materials and Energy
Volume	9
DOIs	https://doi.org/10.1016/j.nme.2016.07.009
Publication status	Published - Dec 1 2016

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All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics
Materials Science (miscellaneous)
Nuclear Energy and Engineering

Cite this

Tan, XY. Y., Li, P., Luo, LM. M., Xu, Q., Tokunaga, K., Zan, X., & Wu, YC. C. (2016). Effect of second-phase particles on the properties of W-based materials under high-heat loading. Nuclear Materials and Energy, 9, 399-404. https://doi.org/10.1016/j.nme.2016.07.009

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abstract = "W, W-TaC, and W-TiC materials were subjected to heat–load tests in an electron beam facility (10 keV, 8 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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AU - Tan, Xiao–Yue –Y

AU - Li, Ping

AU - Luo, Lai–Ma –M

AU - Xu, Qiu

AU - Tokunaga, Kazutoshi

AU - Zan, Xiang

AU - Wu, Yu–Cheng –C

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AB - W, W-TaC, and W-TiC materials were subjected to heat–load tests in an electron beam facility (10 keV, 8 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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10.1016/j.nme.2016.07.009