Strain Induced Martensite Transformation
Mostrando 1-6 de 6 artigos, teses e dissertações.
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1. Characterization of reverse martensitic transformation in cold-rolled austenitic 316 stainless steel
ABSTRACT In this work the reversion of the strain-induced ?’-martensite to ?’-austenite was studied in a series of AISI 316 stainless steels (SS) specimens. The samples were submitted to 63% reduction in thickness by rolling at a temperature of -70ºC, to achieve high martensite content. The reversion of martensite to austenite was made by means of isoch
Matéria (Rio J.). Publicado em: 19/07/2018
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2. The Wire Drawing Mechanics of Near-Equiatomic NiTi SMA
The wire drawing mechanic of Ti-49.82Ni (at. %) Shape Memory Alloy (SMA) was investigated through the true stress-strain curves and drawing stresses. The tensile tested solution treated wire presented a four steps elongation at temperatures below the austenite finish temperature (AF), and a conventional one-step behavior above the martensite deformation temp
Mat. Res.. Publicado em: 26/03/2018
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3. Comparative study of the cold deformation and corrosion resistance of AISI 201 and AISI 304 austenitic stainless steels. / Estudo comparativo da deformação a frio e da resistência à corrosão nos aços inoxidáveis austeníticos AISI 201 e AISI 304.
A crescente demanda de aplicações de aços inoxidáveis austeníticos e a constante pressão para redução de custo nas empresas siderúrgicas, devido à alta volatilidade no custo do níquel, resultaram em novos desenvolvimentos de aços da série 200. Esta nova classe de aços inoxidáveis austeníticos contém elevados teores de manganês e nitrogênio
Publicado em: 2010
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4. Texture analysis of deformation induced martensite in an AISI 301L stainless steel: microtexture and macrotexture aspects
Experiments have been conducted to study the strain induced transformation from austenite to martensite in a metastable AISI 301LN austenitic stainless steel, deformed by uniaxial tension applied along rolling direction. Samples deformed 10 and 20% have shown the presence of α´ martensite phase. Measured pole figures of martensite phase were compared to ca
Materials Research. Publicado em: 2009-09
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5. Theoretical and experimental study of carburisation and decarburisation of a meta-stable austenitic steel
Metastable austenitic stainless steels are known to undergo a partial transformation of austenite to martensite as a consequence of plastic deformation. In the case of cyclic loading, a certain level of plastic strain must be exceeded, and phase formation takes place after an incubation period, during which the necessary amount of plastic deformation is accu
Materials Research. Publicado em: 2005-12
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6. Coupled stress-strain and electrical resistivity measurements on copper based shape memory single crystals
Recently, electrical resistivity (ER) measurements have been done during some thermomechanical tests in copper based shape memory alloys (SMA's). In this work, single crystals of Cu-based SMA's have been studied at different temperatures to analyse the relationship between stress (s) and ER changes as a function of the strain (e). A good consistency between
Materials Research. Publicado em: 2004-06