Effects of rolling and annealing on hydrogen permeability and crystal orientation in Nb-TiNi two-phase alloys
Effects of rolling and annealing on hydrogen permeability and crystal orientation in Nb-TiNi two-phase alloys
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DOI：
10.1016/j.ijhydene.2019.07.021
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发表时间：
2019-08-30
影响因子：
7.2
通讯作者：
Machida, Akihiko
中科院分区：
文献类型：
--
作者：
Ishikawa, Kazuhiro;Saeki, Yoshihide;Machida, Akihiko
Nb19Ti40Ni41合金具有bcc-Nb和B2-TiNi相的层状结构。已知热退火后TiNi基体中会形成粒状Nb相，并且未轧制退火合金的氢渗透率高于轧制退火合金，尽管这两种合金都具有粒状Nb相。尽管在未轧制退火合金中观察到了这些相的晶体取向的“立方体对立方体”关系，但在轧制退火合金中没有发现特定的晶体取向关系。这表明两相之间的晶体取向强烈影响Nb-TiNi两相合金的氢渗透率。 (C) 2019 氢能源出版物有限责任公司。由爱思唯尔有限公司出版。保留所有权利。
The Nb19Ti40Ni41 alloy has a lamellar structure with bcc-Nb and B2-TiNi phases. It is known that a granule Nb phase forms in the TiNi matrix after thermal annealing and that the hydrogen permeability of unrolled annealed alloy is higher than that of rolled annealed alloy, even though the two alloys have granule Nb phase. Although the "cube-on-cube" relationship of crystal orientation for these phases has been observed in unrolled annealed alloy, no specific crystal orientation relationship has been seen in rolled annealed alloy. This indicates that the crystal orientation between the two phases strongly affects hydrogen permeability in Nb-TiNi two-phase alloys. (C) 2019 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.