Fabrication of W/FMS joint mock-ups using a hot isostatic pressing
Fabrication of W/FMS joint mock-ups using a hot isostatic pressing
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DOI：
10.1016/j.fusengdes.2014.02.063
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发表时间：
2014-10
影响因子：
1.7
通讯作者：
Y. Jung;J. Park;Byoung-Kwon Choi;Dong Won Lee;Seungyon Cho
中科院分区：
文献类型：
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作者：
Y. Jung;J. Park;Byoung-Kwon Choi;Dong Won Lee;Seungyon Cho
钨块和铁素体-马氏体钢 (FMS) 的连接没有任何界面缺陷或裂纹。为了接合，进行两次热等静压(HIP)。第一次 HIP（900 °C，100 MPa，1.5 h）促进 W 和 FMS 之间的扩散结合。第二次 HIP（750 °C，70 MPa，2 小时）相当于回火过程，以保留 FMS 的机械性能。作为中间层材料，使用了可以减轻W和FMS之间热膨胀差异的钛箔。此外，还插入了钼箔，以防止钨与罐头材料发生不必要的结合。在传统的 HIP 工艺中通常会出现 W 板的横向裂纹，而在使用钼分离器时则不会出现这种情况。成功制作了尺寸为 50 mm × 50 mm × 32 mm (T) 的 W/FMS 接头模型。接头的平均剪切强度为 89 MPa。
Blocks of tungsten and ferritic–martensitic steel (FMS) were joined without any interfacial defects or cracks. For the joining, two times of a hot isostatic pressing (HIP) were performed. The first HIP (900 °C, 100 MPa, 1.5 h) facilitates the diffusion bonding between W and FMS. The second HIP (750 °C, 70 MPa, 2 h) corresponds to a tempering process to retain the mechanical properties of the FMS. As an interlayer material, titanium foil that can mitigate the thermal expansion difference between W and FMS was used. In addition, a molybdenum foil was inserted to prevent an unwanted bonding of W to a canning material. The lateral cracks in W plates, which were usually observed in the case of a conventional HIP process, were not observed when the molybdenum separator was used. W/FMS joint mock-ups with a dimension of 50 mm × 50 mm × 32 mm (T) were successfully fabricated. The shear strength of the joints was 89 MPa on average.