TY - JOUR
T1 - Martensitic transformation and shape memory effects in Co-V-Al alloys at high temperatures
AU - Jiang, Hengxing
AU - Yang, Shuiyuan
AU - Wang, Cuiping
AU - Zhang, Yanqing
AU - Xu, Xiao
AU - Chen, Yuechao
AU - Omori, Toshihiro
AU - Kainuma, Ryosuke
AU - Liu, Xingjun
N1 - Funding Information:
This work was supported by the National Natural Science Foundation of China (Grant No. 51571168 , Grant No. 51831007 ) .
PY - 2019/5/25
Y1 - 2019/5/25
N2 - Martensitic transformation in Co-V-Al ternary systems was investigated by means of the structural and thermal analysis in single phase martensite alloys. The martensite phase presents a non-modulated L10 structure transformed from a B2 parent phase. With the increase of V content, martensitic transformation temperatures exceeding 100 °C and occurring at approximately 200–300 °C. A two-step shape memory effect occurring at different temperature ranges was found for the first time in Co60V30Al10 alloys, and considerable recoverable strains reaching up to 3.0% were observed. This study shows that Co-V-Al alloys have potential as new candidates for high-temperature shape memory alloys operating in a large temperature range.
AB - Martensitic transformation in Co-V-Al ternary systems was investigated by means of the structural and thermal analysis in single phase martensite alloys. The martensite phase presents a non-modulated L10 structure transformed from a B2 parent phase. With the increase of V content, martensitic transformation temperatures exceeding 100 °C and occurring at approximately 200–300 °C. A two-step shape memory effect occurring at different temperature ranges was found for the first time in Co60V30Al10 alloys, and considerable recoverable strains reaching up to 3.0% were observed. This study shows that Co-V-Al alloys have potential as new candidates for high-temperature shape memory alloys operating in a large temperature range.
KW - High-temperature shape memory alloys (HTSMA)
KW - Martensite stabilization
KW - Martensitic transformation
KW - Thermal analysis
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U2 - 10.1016/j.jallcom.2019.01.216
DO - 10.1016/j.jallcom.2019.01.216
M3 - Article
AN - SCOPUS:85061060991
VL - 786
SP - 648
EP - 654
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
SN - 0925-8388
ER -