Abstract：W and MA956 steel with V-Ni composite powder interlayer was diffusion bonded at 30MPa, 1050℃ to study the effects of holding time(10min, 20min, 30min) on diffusion bonding performance by SPS(Spark plasma sintering). The interface of the joints is well connected, and the highest hardness of the interlayer is about 550HV due to the formation of intermetallic compounds such as Ni3V and NiV3. The brittle carbide VC in the diffusion layer makes its hardness higher than that of the steel base metal, and causes decarburization and softening of the steel base metal near the intermediate layer. When the holding time is 20 min, the shear strength of the joint reaches 225 MPa, and all the shear specimens fracture in the interlayer layer near the tungsten side.
[1]李志帅.可控核聚变：再造一个“太阳[J].广州化工, 2020, 48(10):7-8[2]王俊傢.托卡马克核聚变装置配网负荷分析及其稳定性机理研究[D].中国科学技术大学, 2020.[3]K. Liu,Liu YK.,Gao X.,et al. Power balance investigation in long-pulse high-performance discharges with ITER-like tungsten divertor on EAST[J].Nuclear Fusion, 2020, 60(9):096019-096019[4].热沉(heat sink)材料[J].热沉材料, 2019, 31(3):6-6[5]S. Veshchunov..On the brownian coagulation of nanosized oxide particles in ODS materials under irradiation and annealing conditions[J].Journal of Nuclear Materials, 2020, 542:-[6]Xiang-Long Peng, Swantje Bargmann.A novel hybrid-honeycomb structure: Enhanced stiffness, tunable auxeticity and negative thermal expansion[J].International Journal of Mechanical Sciences, 2021, 190:-[7]Ting Yuan, Min-da Zhang, Jia-hui Ni, et al.The brazing effect on the corrosion mechanism of a multilayer material with Cu[J].Anti - Corrosion Methods and Materials, 2017, 64(6):664-671[8]夏瑞, 顾彩香, 朱云鹏, 刘未来.钢等离子喷涂__涂层性能研究[J].船舶工程, 2017, 39(11):65-68[9]Ji-Chao Wang, Wanjing Wang, Ran Wei, et al.Effect of Ti interlayer on the bonding quality of W and steel HIP joint[J]. Journal of Nuclear Materials, 2017, 485:8-14[10]Zhihong Zhong, Tatsuya Hinoki, Akira Kohyama.Effect of holding time on the microstructure and strength of tungstenferritic steel joints diffusion bonded with a nickel interlayer[J].Materials Science and Engineering: A, 2009, 518(1):167-173[11]W. Basuki,JAktaa. Investigation of tungstenEUROFER97 diffusion bonding using Nb interlayer[J].Fusion Engineering and Design, 2011, 86(9):2585-2588[12]Widodo Widjaja Basuki, Jarir Aktaa.Diffusion bonding between W and EUROFER97 using V interlayer[J].Journal of Nuclear Materials, 2012, 429(1-3):335-340[13]Jiajia Zhang, Donghua Xie, Qishou Li, et al.Effect of holding time on the microstructure and strength of tungsten/steel joints by HIP diffusion bonded using a Cu interlayer[J]. Materials Letters, 2020, 261:-[14]Qingshan Cai, Wensheng Liu, Yunzhu Ma, et al. Microstructure and mechanical properties of diffusion bonded W/steel joint using V/Ni composite interlaye[J]. Materials Characterization, 2013, 86:212-220[15]Qingshan Cai, Wensheng Liu, Yunzhu Ma, et al.Influence of intermetallic compounds on the microstructure and strength properties of diffusion bonded W–steel joints using Ti/Ni composite interlayer[J].Fusion Engineering and Design, 2018, 132:110-118[16]Qingshan Cai, Wensheng Liu, Yunzhu Ma, et al.Microstructure, residual stresses and mechanical properties of diffusion bonded tungsten–steeljoint using a V/Cu composite barrier interlayer[J].Int. Journal of Refractory Metals and Hard Materials, 2015, 48:312-317[17]Wensheng Liu, Xinkuan Pang, Qingshan Cai, et al.Fabrication of W/steel joint using hot isostatic pressing with Ti/Cu/Ti liquid forming interlayer [J].Fusion Engineering and Design, 2018, 135:59-64[18]Qingshan Cai, Wensheng Liu, Zhongwei Zhao, et al.Investigation of tungsten/steel diffusion bonding with Ni–Fe cladding on tungsten substrate[J].Fusion Engineering and Design, 2017, :-
2022, Vol. 29 