新锆合金板材在LiOH溶液中的吸氢行为研究  

Study on Hydrogen Absorption of New Zirconium-based Alloy in Lithium Hydroxide Water Solution

作　　者：周军[1] 李中奎[2] 王文生[2] 张建军[2] 宋启忠[2] 

机构地区：[1]西北工业大学材料学院,陕西西安710072 [2]西北有色金属研究院,陕西西安710016

出　　处：《热加工工艺》2007年第6期7-9,共3页Hot Working Technology

基　　金：国家自然科学基金资助项目(50571083)

摘　　要：研究了NZ2(Zr-lSn-0.3Nb-0.3Fe-0.1Cr)新锆合金板材在高压釜内LiOH水溶液中,于360℃、18.6 MPa条件下进行不同时间的渗氢后试样的吸氢特性。试样的吸氢量随时间增加而增加,其吸氢量曲线伴随转折现象,NZ2合金在渗氢时间为11 h的吸氢量为220 mg/L,仅相当于同样渗氢条件下Zr-4合金渗氢量的43%,比传统锆合金有更为优良的吸氢性能。NZ2合金板中的氢化物的生长方式为条片状,并平行于板材轧向。Hydrogen absorption of a new zirconium-based alloy NZ2 （Zr-1Sn-0.3Nb-0.3Fe-0.1Cr） in autoclave test in lithium hydroxide water solution was investigated under the condition of 360℃, 18.6 MPa. The results show that the hydrogen absorption amount of the alloy increases with time increasing, the hydrogen absorption kinetic has a transition point, and NZ2 alloy has the better hydrogen absorption property compared with Zr-4 alloy, the hydrogen absorption amount is 220 mg/L when the hydrogening time is 11h, only 43% as much as Zr-4 alloy at the same experimental condition. The shape of hydride in NZ2 alloy is strip or lamellar, the growth orientation parallels the rolling plane.

关 键 词：Zr—Sn—Nb锆合金 氢化物 氢氧化锂溶液 吸氢 

分 类 号：TG146.414[一般工业技术—材料科学与工程]