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Multifunctional Alloys Obtained via a Dislocation-Free Plastic Deformation Mechanism |
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| Authors: | Saito Takashi Furuta Tadahiko Hwang Jung-Hwan Kuramoto Shigeru Nishino Kazuaki Suzuki Nobuaki Chen Rong Yamada Akira Ito Kazuhiko Seno Yoshiki Nonaka Takamasa Ikehata Hideaki Nagasako Naoyuki Iwamoto Chihiro Ikuhara Yuuichi Sakuma Taketo |
| Institution: | Toyota Central Research and Development Laboratories, Incorporated, Nagakute Aichi, 480-1192 Japan. saito@mosk.tytlabs.co.jp |
| Abstract: | We describe a group of alloys that exhibit "super" properties, such as ultralow elastic modulus, ultrahigh strength, super elasticity, and super plasticity, at room temperature and that show Elinvar and Invar behavior. These "super" properties are attributable to a dislocation-free plastic deformation mechanism. In cold-worked alloys, this mechanism forms elastic strain fields of hierarchical structure that range in size from the nanometer scale to several tens of micrometers. The resultant elastic strain energy leads to a number of enhanced material properties. |
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