Effect Of Heat Treatment On The Structure And Mechanical Properties Of Superaustenitic Stainless Steel_eti [efeito Do Tratamento Térmico Na Estrutura E Nas Propriedades Mecânicas De Um Aço Inoxidável Superaustenítico]

dc.creatorRitoni M.
dc.creatorMartins M.
dc.creatorMei P.R.
dc.date2007
dc.date2015-06-30T18:47:28Z
dc.date2015-11-26T14:35:37Z
dc.date2015-06-30T18:47:28Z
dc.date2015-11-26T14:35:37Z
dc.date.accessioned2018-03-28T21:39:03Z
dc.date.available2018-03-28T21:39:03Z
dc.identifier
dc.identifierRevista Escola De Minas. , v. 60, n. 1, p. 155 - 161, 2007.
dc.identifier3704467
dc.identifier
dc.identifierhttp://www.scopus.com/inward/record.url?eid=2-s2.0-34249885054&partnerID=40&md5=fedaac59839c46f0cba8a81895c63b54
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/104805
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/104805
dc.identifier2-s2.0-34249885054
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1248424
dc.descriptionThe austenitic stainless steel high alloyed (22Cr-25Ni-7Mo-0,3N), well known as superaustenitic, has as its main characteristic a high corrosion resistence to several environments, mainly in sea water. Furthermore the material shows good mechanical properties and thermal stability. To obtain the mentioned characteristics, the material must be thermically treated, taking into consideration the solubility of the alloy elements. Various heat treatments were performed in this research : solution heat treatment (from 1100 to 1250°C), stress relief (from 500 to 800°C) and sensitization (900°C, varing the time at 1,5h, 12h, 24h and 48h). Hardness and charpy tests were used to study the mechanical behaviour, and optical methalography was done to investigate the heat treatment influence in the material micro structure. It was observed that even with the solution at an extreamely high heat treatment temperature (1250°C), it was not possible to dissolve the precipitates formed during solidification scattering in the austenitic matrix. To maximize the energy absortion impact, the solution heat treatment must be performed between 1150°C and 1200°C and the stress relief until 500°C. In the 900°C temperature range, the material impact resistence (measured at environment temperature) decreasedfrom 25J to 7J when the heat treatment time was increased from 1,5h to 48 h.
dc.description60
dc.description1
dc.description155
dc.description161
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dc.languagept
dc.publisher
dc.relationRevista Escola de Minas
dc.rightsaberto
dc.sourceScopus
dc.titleEffect Of Heat Treatment On The Structure And Mechanical Properties Of Superaustenitic Stainless Steel_eti [efeito Do Tratamento Térmico Na Estrutura E Nas Propriedades Mecânicas De Um Aço Inoxidável Superaustenítico]
dc.typeArtículos de revistas


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