V-Ni-Fe氢分离合金微观组织与力学、氢传输性能  

Microstructure,Mechanical and Hydrogen Transfer Properties of V-Ni-Fe Hydrogen Separation Alloys

作　　者：杨旭 梁骁 王景琪 许松松 徐艳辉 李新中 YANG Xu;LIANG Xiao;WANG Jingqi;XU Songsong;XU Yanhui;LI Xinzhong(School of Iron and Steel,Soochow University,Suzhou 215000)

机构地区：[1]苏州大学沙钢钢铁学院,苏州215000

出　　处：《特种铸造及有色合金》2025年第1期85-89,共5页Special Casting & Nonferrous Alloys

基　　金：国家自然科学基金资助项目(52301062);中国博士后基金资助项目(2023M732521)。

摘　　要：研究了V_(85)Ni_(15-x)Fe_(x)(x=0,5,7.5,10,15)合金的微观组织和力学性能,以及氢溶解、氢渗透和抗氢脆性能。结果表明,5种V-Ni-Fe合金均为均匀的bcc-(V)固溶体合金。随Fe含量升高,合金的硬度和屈服强度总体呈先升后降的趋势,最大变形量表现为先降后升。但V_(85)Ni_(7.5)Fe_(7.5)合金异于总体趋势,表现出低硬度、低屈服强度以及较高的塑性(20%)。V-Ni-Fe合金的氢溶解和氢渗透性能随Fe含量的升高而降低,V_(85)Ni_(7.5)Fe_(7.5)合金在400℃下的氢渗透系数是纯钯的4.3倍。Fe含量较高的3种合金在400℃以下工作时表现出良好的抗氢脆性能。The microstructure,mechanical properties,hydrogen solubility,hydrogen permeability and hydrogen brittleness resistance of V_(85)Ni_(15-x)Fe_(x)(x=0,5,7.5,10,15)alloys were characterized.The results indicate that the V-Ni-Fe alloys are presented as homogeneous bcc-(V)solid solution alloys.The hardness and yield strength of alloys are increased firstly and then decreased with Fe content increasing,and the maximum deformation amount is decreased firstly and then increased.The V_(85)Ni_(7.5)Fe_(7.5) alloy is different from the general trending,showing low hardness,low yield strength and high plasticity(20%).The hydrogen solubility and hydrogen permeability of V-Ni-Fe alloys are decreased with Fe content increasing.The hydrogen permeability of V_(85)Ni_(7.5)Fe_(7.5) alloy is 4.3 time of pure Pd at 400℃.The alloys with Fe content higher than 7.5 shows desirable hydrogen embrittlement resistance.

关 键 词：V-Ni-Fe合金 微观组织 力学性能 氢传输性能 

分 类 号：TG139.7[一般工业技术—材料科学与工程] TG146.4[金属学及工艺—合金]