Microstructural development of vanadium-nickel crystalline alloy membranes

作     者：Peng Jiang Xiao-Bin Shi Bo-Lin Sun Hai-Chuan Wang Michael Doland Guang-Sheng Song Peng Jiang;Xiao-Bin Shi;Bo-Lin Sun;Hai-Chuan Wang;Michael Doland;Guang-Sheng Song

作者机构：School of Materials Science and EngineeringAnhui University of TechnologyMaanshan 243002China School of Mechanical EngineeringChangzhou UniversityChangzhou 213164China School of Metallurgical EngineeringAnhui University of TechnologyMaanshan 243002China CSIROEnergy.Queensland Centre for Advanced TechnologiesPullenvale 4069Australia 

出 版 物：《Rare Metals》 (稀有金属（英文版）)

年 卷 期：2021年第40卷第7期

页      面：1932-1939页

核心收录：

学科分类：080706[工学-化工过程机械] 0806[工学-冶金工程] 08[工学] 0807[工学-动力工程及工程热物理] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0703[理学-化学] 0702[理学-物理学] 

基　　金：the National Natural Science Foundation of China(Nos.51875002 and 51705038) China Postdoctoral Science Foundation(No.2019M652158) the Natural Science Foundation of Jiangsu Province of China(No.BK20150268) 

主　　题：Microstructure characterization Alloy membrane V-Ni alloy Deformation Recrystallization Solid transformation 

摘      要：V85Ni15(at%)alloy was proposed as a promising candidate for hydrogen separation *** date,investigations of V85Ni15 alloy have concentrated on hydrogen permeation characteristics,and little work has been done on the microstructural *** the present study,various fabrication and heat-treatment techniques were used to develop different microstructures which would then be tailored to achieve a desired candidate for acceptable mechanical stability while maintaining high hydrogen *** arc-melted(AM)V85Ni15 alloy are supersaturated solid solution with dendritic segregation of Ni-solute *** rolling(CR)followed by annealing at 1050℃and 850℃can produce a two-phase(V+σ)microstructure and a three-phase(V+σ+NiV3)microstructure,*** fine two-phase microstructure obtained at 1050℃involves a simultaneous reaction of second-phase precipitation and V-matrix *** phase is formed via primary precipitation,while NiV3 phase is formed by peritectoidal *** AMCR samples were homogenized at1250℃for 2 h and sequential heat-treated at 850℃or900℃for 2 h,precipitation-strengthening microstructure is obtained:large grain structure of V-matrix with uniform distribution of second-phase particles produced by recrystallization and grain growth followed by precipitation process.