کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1601055 | 1005183 | 2010 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Hydrogen sorption properties of Ti–Cr alloys synthesized by ball milling and cold rolling Hydrogen sorption properties of Ti–Cr alloys synthesized by ball milling and cold rolling](/preview/png/1601055.png)
Three Ti–Cr alloys with nominal compositions of TiCrx (x = 2, 1.8 and 1.5) were synthesized by cold rolling and ball milling of as-cast ingots, and their microstructures and hydrogenation properties were studied. X-ray diffraction showed that TiCrx transformed from a mixture of C14 and C15 Laves phases to a metastable BCC phase after 5 h of ball milling under argon. Cold rolling did not lead to the formation of a metastable BCC phase but only to the reduction of TiCrx size particles under 20 nm. Surprisingly, the hydrogen absorption/desorption curves of cold rolled and ball milled samples at 323 K were quite similar. This result proves that hydrogen storage properties do not depend only on microstructure and that cold rolling could be an interesting method to synthesize hydrogen storage materials.
Journal: Intermetallics - Volume 18, Issue 1, January 2010, Pages 140–144