Investigation of microstructure and irradiation behavior of W-Nb/Ti composites prepared by spark plasma sintering
Investigation of microstructure and irradiation behavior of W-Nb/Ti composites prepared by spark plasma sintering
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DOI：
10.1016/j.fusengdes.2016.07.003
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发表时间：
2016-11-15
影响因子：
1.7
通讯作者：
Wu, Yu-Cheng
中科院分区：
文献类型：
--
作者：
Chen, Jing-Bo;Luo, Lai-Ma;Wu, Yu-Cheng
通过机械铣削和放电等离子烧结制备了W-Nb/Ti复合材料。使用场发射扫描电子显微镜、高分辨率透射电子显微镜和 X 射线衍射分析来表征样品。热解吸光谱（TDS）用于测量仅氘照射后的氘保留。 W-4wt%Ti-wtl%Nb中的氘保留率低于纯W（D-2(+)通量接近10(22)离子/(m(2)s)，离子能量接近5keV），Nb和Ti将提高钨复合材料的耐氘辐照性能。此外，在W-4wt% Ti-1 wt% Nb复合材料的表面观察到穿晶和沿晶断裂。烧结过程中形成Ti(x)W(1-x)固溶体。在 600 摄氏度下检测到 W-4wt%Ti-1wt%Nb 复合材料的最大拉伸强度（410.53 MPa）。 (C) 2016 Elsevier B.V. 保留所有权利。
W-Nb/Ti composites were prepared by machine milling and spark plasma sintering. Field-emission scanning electron microscopy, high-resolution transmission electron microscopy, and X-ray diffraction analyses were used to characterize the samples. Thermal desorption spectroscopy (TDS) was used to measure the deuterium retention after only deuterium irradiation. The deuterium retention in W-4wt%Ti-wtl%Nb was lower than that in pure W (D-2(+) flux similar to 10(22) ions/(m(2) s), ion energy similar to 5 keV), Nb and Ti will improve the deuterium irradiation resistance of tungsten composite. In addition, transgranular and intergranular fractures were observed on the surface of the W-4wt% Ti-1 wt% Nb composite. A Ti(x)W(1-x) solid solution was formed during sintering. The maximum tensile strength (410.53 MPa) was detected in the W-4wt%Ti-lwt%Nb composite at 600 degrees C. (C) 2016 Elsevier B.V. All rights reserved.