TY - JOUR
T1 - High damping NiTi/Ti3Sn in situ composite with transformation-mediated plasticity
AU - Zhang, Junsong
AU - Liu, Yinong
AU - Huan, Y.
AU - Hao, S.
AU - Jiang, D.
AU - Ren, Y.
AU - Shao, Y.
AU - Ru, Y.
AU - Wang, Z.
AU - Cui, L.
PY - 2014/11
Y1 - 2014/11
N2 - © 2014 Elsevier Ltd. The concept of transformation-induced plasticity effect is introduced in this work to improve the plasticity of brittle intermetallic compound Ti3Sn, which is a potent high damping material. This concept is achieved in an in situ NiTi/Ti3Sn composite. The composite is composed of primary Ti3Sn phase and (NiTi+Ti3Sn) eutectic structure formed via hypereutectic solidification. The composite exhibits a high damping capacity of 0.075 (indexed by tanδ), a high ultimate compressive strength of 1350MPa, and a large plasticity of 27.5%. In situ synchrotron high-energy X-ray diffraction measurements revealed clear evidence of the stress-induced martensitic transformation (B2→B19') of the NiTi component during deformation. The strength of the composite mainly stems from the Ti3Sn, whereas the NiTi component is responsible for the excellent plasticity of the composite.
AB - © 2014 Elsevier Ltd. The concept of transformation-induced plasticity effect is introduced in this work to improve the plasticity of brittle intermetallic compound Ti3Sn, which is a potent high damping material. This concept is achieved in an in situ NiTi/Ti3Sn composite. The composite is composed of primary Ti3Sn phase and (NiTi+Ti3Sn) eutectic structure formed via hypereutectic solidification. The composite exhibits a high damping capacity of 0.075 (indexed by tanδ), a high ultimate compressive strength of 1350MPa, and a large plasticity of 27.5%. In situ synchrotron high-energy X-ray diffraction measurements revealed clear evidence of the stress-induced martensitic transformation (B2→B19') of the NiTi component during deformation. The strength of the composite mainly stems from the Ti3Sn, whereas the NiTi component is responsible for the excellent plasticity of the composite.
U2 - 10.1016/j.matdes.2014.05.062
DO - 10.1016/j.matdes.2014.05.062
M3 - Article
SN - 0261-3069
VL - 63
SP - 460
EP - 463
JO - Materials and Design
JF - Materials and Design
ER -