Role of dynamic strain aging in the tensile property, cyclic deformation and fatigue behavior of Z2CND18.12N stainless steel between 293 K and 723 K

Yu, Dunji; Wang, Yu; Chen, Gang; Jin, Fengmin; Chen, Xu

doi:10.1016/j.msea.2012.08.088

Cited by 25 publications

(15 citation statements)

References 45 publications

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“…AISI 316 and 316L austenitic stainless steels show DSA behaviour in the temperature range of 200-800 • C [6][7][8]. However, literature investigation indicated that there are inconclusive works related to DSA behaviour of weld joints of austenitic stainless steels.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Strain Aging Behaviour in AISI 316L Austenitic Stainless Steel under As-Received and As-Welded Conditions

Muhamed

Gündüz

Erden

et al. 2017

Metals

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In the current study, dynamic strain ageing (DSA) phenomena in 316L austenitic stainless steel was investigated under as-received and as-welded conditions. A tensile test was carried out on as-received and as-welded samples for the temperatures of 25-800 • C at a strain rate of 1 × 10 −3 s −1 . Microstructure and fracture surfaces were investigated by optic and scanning electron microscopes (SEM). 316L austenitic stainless steel showed different DSA behavior under as-received and as-welded conditions, which are discussed in terms of microstructure and mechanical properties.

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Section: Introductionmentioning

confidence: 99%

Dynamic Strain Aging Behaviour in AISI 316L Austenitic Stainless Steel under As-Received and As-Welded Conditions

Muhamed

Gündüz

Erden

et al. 2017

Metals

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“…Cells dislocations and planar slip structure was observed in the steel after hot rolling, see Figure 3 20,22 . In contrast, a structure of dislocations bands with walls of high density of dislocations (HDDW) and defined cells blocks were found in the austenite and ferrite phases after warm rolling at 600°C, Figures 4-6.…”

Section: Resultsmentioning

confidence: 99%

“…The TEM micrographs obtained correspond to observations made in the rolling plane, but due to the sequential gridding on both faces, the section examined corresponded to approximately half the strip thickness. Figure 3a shows the presence of narrow slip band [20][21][22] in the austenite (region on the right side in the micrograph, pointed by arrows) and dense dislocation walls (DDW). Figure 3b shows subgrains in the ferrite and annealing twin in austenite.…”

Section: Resultsmentioning

confidence: 99%

Effect of Warm Rolling on the Corrosion and Mechanical Properties of UNS S32205 Duplex Stainless Steel

et al. 2019

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Duplex stainless steel (DSS) has been considered as an excellent alternative for applications where high corrosion resistance and high mechanical strength are required. Therefore, microstructure and properties of DSS remain topics of much interest. For this purpose, the effect of warm-rolling was studied in a duplex stainless steel. The focus of this work was 2205 which is one of the most useful type of DSS. Although evolution of microstructure, texture and tensile properties during warm rolling of DDS have been reported, there is no study on the effect of warm rolling on corrosion resistance of 2205 DSS. In this context, the objective of this work is to evaluate microstructure, texture and mechanical and corrosion properties of UNS S32205 DSS after warm rolling. The duplex stainless steel was warm-rolled at 600°C up to 60 and 80% thickness reduction and submitted to electrochemical tests. The electrochemical behaviour of warm-rolled 2205 in the chlorine ion environment was evaluated using cyclic potentiodynamic polarization (CPP) and electrochemical impedance spectroscopy (EIS). The samples exhibited an excellent corrosion resistance in 3.5% NaCl solution. The study showed that the thermomechanical treatment used favoured the formation of the passive film and led to a greater polarization resistance. This behaviour is consistent with the pits density observed by scanning electron microscopy (SEM) and the crystallographic microtexture of the steel.

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“…[19]. Na figura 6a observa-se a presença de micromaclas [19][20][21] de deformação na austenita (região à direita na micrografiasetas). Na figura 6b observa-se subgrãos na ferrita.…”

Section: Microscopia Eletrônica De Transmissãounclassified

“…Na figura 6b observa-se subgrãos na ferrita. Uma estrutura celular de deslocações e deslizamento planar foi observada no aço à temperatura ambiente depois de laminado a quente, Figura 7 [19,21]. Em contraste, uma estrutura de bandas de deslocações com paredes alta densidade de deslocações e sugraõs definidos foram encontradas nas fases austenítica e ferrítica após laminação a morno a 600°C, Figuras 7-9.…”

Section: Microscopia Eletrônica De Transmissãounclassified

Formação Da Microestrutura, Textura E Desempenho Mecânico Do Aço Inoxidável Duplex Uns S32205 Submetido a Laminação a Morno

Santos¹,

Alves²,

Ferreira³

et al. 2017

Anais Do Congresso Anual Da ABM

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Resumo Nesse trabalho o aço inoxidável duplex UNS S32205 foi laminado a morno a 600°C com 60 e 80% de redução e, em seguida, resfriado ao ar. A microestrutura foi caracterizada por microscopia óptica, eletrônica de varredura, de transmissão, difratometria de raios X e EBSD. O comportamento mecânico foi avaliado por ensaios de tração e dureza. Os limites de resistência mecânica alcançaram 1185 MPa e 1328 MPa após laminação a morno de 60 e 80%, respectivamente. No aço como fornecido, laminado a quente e recozido, o limite de resistência foi de 774 MPa. A dureza nessa condição foi de 281 HV, e de 410 HV para ambas as condições de laminação a morno. A microtextura da ferrita α apresentou a fibra α e a componente cubo girado, enquanto a austenita realçou as componentes latão, cobre e cubo em menor intensidade. A fibra α e a componente latão são características da textura de deformação das respectivas fases. A subestrutura foi caracterizada por intensa formação de emaranhado e florestas de deslocações. Na fase ferrítica verificou-se intensa formação de subestrutura de deslocações e subgrãos. Na fase austenítica a subestrutura foi caracterizada por deslizamento planar de deslocações e formação de emaranhados de deslocações. A comparação do comportamento mecânico com o aço na condição como fornecida revelou que o trabalho a morno elevou o nível de resistência mecânica entre 65 a 72% com redução da ductilidade. Esses resultados vislumbram perspectivas de rotas inovadoras na produção industrial do aço inoxidável duplex dessa classe.

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Role of dynamic strain aging in the tensile property, cyclic deformation and fatigue behavior of Z2CND18.12N stainless steel between 293 K and 723 K

Cited by 25 publications

References 45 publications

Dynamic Strain Aging Behaviour in AISI 316L Austenitic Stainless Steel under As-Received and As-Welded Conditions

Dynamic Strain Aging Behaviour in AISI 316L Austenitic Stainless Steel under As-Received and As-Welded Conditions

Effect of Warm Rolling on the Corrosion and Mechanical Properties of UNS S32205 Duplex Stainless Steel

Formação Da Microestrutura, Textura E Desempenho Mecânico Do Aço Inoxidável Duplex Uns S32205 Submetido a Laminação a Morno

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