热加工工艺
熱加工工藝
열가공공예
HOT WORKING TECHNOLOGY
2009年
18期
115-117,121
,共4页
邓安强%樊静波%夏广军%钱克农
鄧安彊%樊靜波%夏廣軍%錢剋農
산안강%번정파%하엄군%전극농
储氢合金%Rietveld分析%三维网络%电化学性能
儲氫閤金%Rietveld分析%三維網絡%電化學性能
저경합금%Rietveld분석%삼유망락%전화학성능
hydrogen storage alloy%Rietveld analysis%tree-dimensional network%electrochemical properties
采用感应熔炼+退火热处理的方法制备了储氢合金La_(1.5)Mg_(0.5)Ni_(7.0)(TiNi_3)_(0.1);用XRD、SEM和EPMA对合金的相结构和电化学性能进行了研究.结果表明:合金主要由Gd_2Co_7型和Ce_2Ni_7型的(La,Mg)_2Ni_7相和LaNi_5相组成,合金退火1 h时第二相呈三维网络状沿主相晶界分布;此时,合金具有最好的电化学循环稳定性.
採用感應鎔煉+退火熱處理的方法製備瞭儲氫閤金La_(1.5)Mg_(0.5)Ni_(7.0)(TiNi_3)_(0.1);用XRD、SEM和EPMA對閤金的相結構和電化學性能進行瞭研究.結果錶明:閤金主要由Gd_2Co_7型和Ce_2Ni_7型的(La,Mg)_2Ni_7相和LaNi_5相組成,閤金退火1 h時第二相呈三維網絡狀沿主相晶界分佈;此時,閤金具有最好的電化學循環穩定性.
채용감응용련+퇴화열처리적방법제비료저경합금La_(1.5)Mg_(0.5)Ni_(7.0)(TiNi_3)_(0.1);용XRD、SEM화EPMA대합금적상결구화전화학성능진행료연구.결과표명:합금주요유Gd_2Co_7형화Ce_2Ni_7형적(La,Mg)_2Ni_7상화LaNi_5상조성,합금퇴화1 h시제이상정삼유망락상연주상정계분포;차시,합금구유최호적전화학순배은정성.
La_(1.5)Mg_(0.5)Ni_(7.0)(TiNi_3)_(0.1) hydrogen storage alloys were prepared by induction melting and annealing treatment. The phase structure and electrochemical properties of the alloy were studied by XRD, SEM and EPMA. The results show that the alloy are composed of multi-phase such as Gd_2Co_7-phase, Ce_2Ni_7-phase and LaNi_5 phase, the secondary phase precipitates along the grain boundary of main phase in the form of tree-dimensional network of the alloy annealed for 1 h, it has the best cycle stability at the same time.
