Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1580189 | Materials Science and Engineering: A | 2009 | 4 Pages |
Abstract
Mechanical alloying and heat treatment have been used to prepare amorphous and crystalline Ti-50 at % Ni alloys. Changes of the structure, morphology and hydrogen desorption characteristics of Ti-Ni alloys were investigated. The results of X-ray diffraction (XRD), transmission electron microscopy (TEM) and scanning electron microscope (SEM) show that amorphous Ti-Ni phase with uniform elemental distribution forms after 100Â h of milling. A crystalline Ti-Ni alloy, consisted of Ti2Ni phase coexisting with minor phases TiNi and TiNi3, was formed by annealing this as-milled alloy. The amorphous Ti-Ni alloy presented good corrosion resistance, cyclic stabilization and anti-pulverization, while the crystalline one showed poor kinetic properties and severe pulverization during charge and discharge cycles.
Related Topics
Physical Sciences and Engineering
Materials Science
Materials Science (General)
Authors
Xiangyu Zhao, Liqun Ma, Yanan Gou, Xiaodong Shen,