Texture control of Fe-Mn-Si-Cr alloy by the preferential dynamic grain growth mechanism and the improvement of shape memory characteristics

Autor:	Yusuke Onuki, Hiroshi Fukutomi, Kazuto Okayasu, Itaru Nakajima, Shigeru Suzuki, Makoto Hasegawa
Jazyk:	angličtina
Rok vydání:	2021
Předmět:	preferential dynamic grain growth mechanism Materials science shape memory alloy Materials Chemistry Metals and Alloys Shape-memory alloy Texture (crystalline) Physical and Theoretical Chemistry Composite material Fe-Mn-Si-Cr Condensed Matter Physics texture
Popis:	The development of cube texture in Fe-Mn-Si-Cr shape memory alloy by the preferential dynamic grain growth mechanism is experimentally examined. The plane strain compression deformation at 1173 K with strain rates of 2.0 x 10(-3) 1.0 x 10(-3) s(-1), and 5.0 x 10(-4) s(-1) results in the development of cube texture. The maximum volume fraction of cube orientated grains is about 25% which is ten times as high as that before the deformation. It is experimentally confirmed that the specimen with (00l)(surface of the tensile specimens) < 110 > (tensile direction) shows higher shape memory efficiency than those prepared by the so called training treatment. The texture evaluation by neutron diffraction method elucidates that control of the texture in the gamma single phase state is effective to specify the active shear system contributing to the shape memory effect. Web of Science 107 4 320 312
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0893498ecc509415e1e8de8a123b84cb http://hdl.handle.net/10084/145094 Zobrazit plný text záznamu