研究了Nb50Ti25Ni25及Nb40Ti30Ni30合金的显微组织及氢渗透性能,并与贵金属Pd、Pd-Ag合金及纯Nb的氢渗透性能进行了比较.两种合金的显微组织均由先析出的bcc-Nb(Ti,Ni)固溶体和bcc-Nb(Ti,Ni)+B2-TiNi共晶组成.随Ni、Ti合金元素含量增加,合金中共晶相的含量增加.氢渗透温度为673 K时,两种合金的氢渗透系数分别为1.71×10-8和1.03×10-8mol·in-1·s-1·Pa-0.5,接近Pd的氢渗透系数,略低于Pd-Ag合金的氢渗透系数.共晶相的比例增加有利于提高合金的抗氢脆性能,增加先析出相的比例可提高合金的氢渗透系数.适当调整合金元素含量可获得综合性能良好的氢渗透合金.
参考文献
[1] | Ozaki T,Zhang Y,Komaki M,Nishimura C.Int J Hydrogen Energy,2003; 28:297 |
[2] | Buxbaum R E,Marker T L.J Membr Sci,1993; 85:29 |
[3] | Ozaki T,Zhang Y,Komaki M,Nishimura C.Int J Hydrogen Energy,2003; 28:1229 |
[4] | Tong H D,vanden Berg A H J,Gardeniers J G E,Jansen H V,Gielens F C,Elwenspoek M C.Thin Solid Films,2005; 479(1-2):89 |
[5] | Amano M,Nishimura C,Komaki M.Mater Trans JIM,1990; 31:404 |
[6] | Nishimura C,Komaki M,Amano M.Mater Trans JIM,1991; 32:501 |
[7] | Yamaura S,Shimpo Y,Okouchi H,Nishida M,Kajita O,Kimura H,Inoue A.Mater Trans,2003; 44:1885 |
[8] | Yamaura S,Sakurai M,Hasegawa M,Wakoh K,Shimpo Y,Nishida M,Kimura H,Matsubara E,Inoue A.Acta Mater,2005; 53:3703 |
[9] | Hashi K,Ishikawa K,Matsuda T,Aoki K.J Alloys Compd,2005; 404-406:273 |
[10] | Schmidt R,Schlereth M,Wipf H,Assmus W,Mullner M.J Phys:Condens Matter,1989; 1:2473 |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分:
-
10%
-
20%
-
30%
-
40%
-
50%