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      Determinação das propriedades mecânicas da martensita-ε por indentação instrumentada em ligas inoxidáveis com memória de forma Translated title: Determination of the mechanical properties of epsilon martensite by nanoindentation in shape memory stainless alloys

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          Abstract

          RESUMO Esse trabalho apresenta um estudo da dureza e do mee austenita-γ da liga inoxidável à base de ferro com efeito de memória de forma. Utilizando indentação instrumentada, foi possível determinar a dureza e o módulo de elasticidade das fases austenita-γ e martensita-ε separadamente. A fase martensítica apresentou uma dureza de 7,0 GPa, enquanto que a dureza da fase austenítica foi de 3,0 GPa. Os valores de módulo de elasticidade foram 202 e 137 GPa, para as fases martensita e austenita, respectivamente.

          Translated abstract

          ABSTRACT This work presents a hardness study and elastic modulus for the ε-martensite and γ-austenite phases of an iron based shape memory alloy. Using instrumented indentation, it was possible to determine the hardness and elasticity modulus of these phases separately. The martensitic phase presented a hardness of 7.0 GPa and the austenitic phase presented a hardness of 3.0 GPa. The elastic modulus values were 202 and 137 GPa for the martensitic and austenitic phases, respectively.

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          Most cited references17

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          Shape Memory Alloys

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            Alloy phase diagrams

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              Microstructural analysis of the stress-induced ε martensite in a Fe–Mn–Si–Cr–Ni shape memory alloy: Part I—calculated description of the microstructure

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                rem
                Rem: Revista Escola de Minas
                Rem: Rev. Esc. Minas
                Escola de Minas (Ouro Preto )
                1807-0353
                March 2010
                : 63
                : 1
                : 39-44
                Affiliations
                [1 ] Universidade Estadual de Ponta Grossa Brazil
                [2 ] UNCIAMP Brasil
                [3 ] Universidade Federal do Paraná Brazil
                [4 ] VITA Brasil
                [5 ] Universidade Estadual de Campinas Brazil
                Article
                S0370-44672010000100007
                10.1590/S0370-44672010000100007
                0befd36b-42da-4222-9a8b-8fad72a0b5d6

                http://creativecommons.org/licenses/by/4.0/

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                SciELO Brazil

                Self URI (journal page): http://www.scielo.br/scielo.php?script=sci_serial&pid=0370-4467&lng=en
                Categories
                ENGINEERING, CIVIL
                METALLURGY & METALLURGICAL ENGINEERING

                General engineering,Civil engineering
                Stainless alloys,shape memory effect,instrumented indentation,Ligas austeníticas,efeito de memória de forma,indentação instrumentada

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