Strengthening of AISI 2205 duplex stainless steel by strain ageing

Karahan, Tuba; Emre, Hayriye Ertek; Tümer, Mustafa; Kaçar, Ramazan

doi:10.1016/j.matdes.2013.09.065

Cited by 37 publications

(31 citation statements)

References 13 publications

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“…In general, the strengthening effect of strain ageing in both AR and H+N heat treated specimens was found to be quite low when compared to dual phase carbon steel 11,14 . This is because of the effect of carbide formers that reduces the interstitial atoms in solid solution.…”

Section: Wilson and Russellmentioning

confidence: 89%

“…These structural mild steels are generally preferred in civil engineering and industry of machinery manufacturing 9 . Remarkable researches have been carried out on the strain aging of ultra-low carbon, interstitial free; bake hardenable, dual phase and various stainless steel [9][10][11][12][13][14][15][16][17][18] . As relatively inconclusive study is available in the literature, a work is needed to investigate the materials and processing factors that are significant parameters affecting the kinetics of strain ageing of S275JRC steel which is preferred for manufacturing heavy vehicle steel wheel rim.…”

Section: Introductionmentioning

confidence: 99%

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Factors Affecting Kinetics of Strain Aging in S275JRC Steel

Bülbül

Kaçar

2016

Mat. Res.

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The materials parameter i.e. microstructure as well as the processing factors i.e. aging time and temperature, the amount of plastic deformation, and residual stresses affecting the kinetic of strain ageing in the S275JRC steel were investigated in detail. For this purpose, 5 % pre-strained steel was aged at 160 o C for different intervals. The ageing behavior was determined for the as-received (AR) and homogenization & normalizing heat treated (H+N heat treated) conditions. The yield stresses before and after aging process and, the hardness values of the aged steels were considered to calculate strain aging progress. It was shown that a noticeable increase in the yield strength, tensile strength and hardness values was observed for aged AR and H+N heat treated specimens. Moreover, the repetitive increase in the yield and ultimate tensile strength was believed to be a result of strain ageing.

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Section: Wilson and Russellmentioning

confidence: 89%

Section: Introductionmentioning

confidence: 99%

Factors Affecting Kinetics of Strain Aging in S275JRC Steel

Bülbül

Kaçar

2016

Mat. Res.

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“…Para que essas proporções sejam atingidas, os aços duplex são submetidos à laminação a quente ou forjamento, laminação a frio, seguida de um recozimento para recristalização [5,6]. Quando comparados aos aços ferríticos e austeníticos, os AID's exibem melhores propriedades mecânicas e corrosivas, sendo utilizados nas indústrias petroquímica, químicas, óleo e gás, papel e celulose, naval e nuclear, as quais requerem boa combinação dessas propriedades [7][8][9][10]. Os aços duplex apresentam forte tendência à formação de fases secundárias quando expostos a altas temperaturas por tempos prolongados.…”

Section: Introductionunclassified

Efeito Da Temperatura De Recozimento Na Precipitação Da Fase Sigma No Aço Inoxidável Duplex Uns 31803

Maria¹,

Dias²,

Alves³

et al. 2017

Anais Do Congresso Anual Da ABM

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ResumoO aço inoxidável duplex combina as propriedades mecânicas da ferrita à resistência à corrosão da austenita, sendo muito utilizado em aplicações industriais que requerem um bom desempenho quanto a essas propriedades. Quando esse aço é submetido a ciclos térmicos, fases secundárias podem se precipitar, o que causa a deterioração de suas propriedades. Dentre as fases que podem surgir, a fase sigma é a de maior relevância. O presente trabalho tem como objetivo avaliar e quantificar a precipitação da fase sigma quando o aço duplex UNS 31803 é submetido ao recozimento em diferentes temperaturas. Para essa análise foram utilizados a microscopia óptica e eletrônica, difração por elétrons retroespalhados, difração de raios -X, e espectometria de raios -X por dispersão em energia. Observou -se a presença da fase sigma em três das quatro condições adotadas no trabalho. A presença mais acentuada da fase foi observada na condição em que a velocidade de precipitação é máxima. Palavras-chave: Aço inoxidável duplex; Fase sigma; Fases intermetálicas. EFFECT OF ANNEALING TEMPERATURE ON THE PRECIPITATION OF SIGMA PHASE IN DUPLEX STAINLESS STEEL UNS 31803 AbstractThe duplex stainless steel combines the mechanical properties of ferrite and the corrosion resistance of austenite, widely used in industrial applications that require a good performance in terms of these properties. When this steel is subjected to thermal cycles, secondary phases can precipitate, which causes the deterioration of its properties. The sigma phase is the most relevant between the precipitates which may be formed. The aim of this work is to evaluate and quantify the precipitation of sigma phase when the Duplex UNS 31803 steel is subjected to annealing at different temperatures. For this analysis were used optical and electron microscopy, electron backscattered diffraction, diffraction X -ray spectrometry and X -ray dispersive energy. The sigma phase was observed in three of the four conditions adopted in work. The presence of phase was observed so more pronounced in the condition where the precipitation velocity is maximal.

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“…It is well known that such good properties of duplex steels rely on a two-phase microstructure comprised of approximately equal amounts of austenite (c) and ferrite (d) [4]. Solution treatment is important heat treatment process for DSS, which can promote dissolution of carbide and other precipitation phases after rolling process, thus maintain high mechanical property and corrosion resistance of DSS [5][6][7]. However, different solution treatment temperatures can result in volumetric equilibrium fraction of d and c phase changes in DSS, and Cr, Mn and Mo content in the two phases will be altered accordingly.…”

Section: Introductionmentioning

confidence: 99%