Martensitic Transformation and Mechanical Behavior of TiNi Shape Memory Alloys after Severe Plastic Deformation
2006 ◽
Vol 503-504
◽
pp. 419-424
Keyword(s):
Thermal- and stress-induced martensitic transformation was investigated on TiNi shape memory alloys subjected to severe plastic deformation (SPD) by cold rolling. TEM observation revelaed the sample is a mixture of nanocrystalline and amorphous after 40% cold rolling. DSC analysis suggested that the martensitic transformation was suppressed when the thickness reduction was over 25% reduction. Aging at lower temperatures (573 ~ 673 K, 3.6 ks) restores the phase transformations, but to a limited extent. The stress-strain curves of nanocrystalline/amorphous TiNi are characterized by absence of stress-plateau and small hysteresis.
2006 ◽
pp. 419-424
2005 ◽
Vol 410-411
◽
pp. 386-389
◽
2015 ◽
Vol 2
◽
pp. S905-S908
◽
1987 ◽
Vol 78
(6)
◽
pp. 401-405
2003 ◽
Vol 426-432
◽
pp. 2765-2770
◽
2012 ◽
Vol 05
(04)
◽
pp. 1250049
◽
2015 ◽
Vol 2
◽
pp. S747-S750
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Keyword(s):
2009 ◽
Vol 3
(3)
◽
pp. 325-328