The effect of grain size and martensitic transformation on the wear behavior of AISI 304L stainless steel

Dehsorkhi, Reihane Nafar; Sabooni, S.; Karimzadeh, F.; Ahmad, Razi; Enayati, M.H.

doi:10.1016/j.matdes.2014.07.022

Cited by 48 publications

(24 citation statements)

References 21 publications

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“…As observed in Figure and Table , both d f and d m decrease in the order of IQ < IA < SQ. It has been demonstrated that the wear resistance of steels is enhanced by grain refinement . The IQ specimen also has the highest values of V M and UTS among the samples.…”

Section: Resultsmentioning

confidence: 96%

Influence of Heat Treatment Schedule on the Tensile Properties and Wear Behavior of Dual Phase Steels

Ashrafi

Sadeghzade

Emadi

et al. 2016

steel research int.

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The aim of present study is to investigate the influence of heat treatment schedule on the microstructure, tensile properties, and wear behavior of dual phase (DP) steels. In this regard, a cold‐rolled low carbon steel (0.18% C, 1.25% Mn) is subjected to intercritical annealing (IA), step quenching (SQ), and intermediate quenching (IQ) heat treatment cycles to produce DP steels with different microstructures. The results show that the tensile strength, strength‐elongation balance, and wear resistance of DP steels change in the order of SQ < IA < IQ. Variation of work hardening rate (θ = dσ/dϵ) with stress for the IA treated DP steel shows a one stage behavior corresponding to stage III, where θ linearly decreases with increasing flow stress. In contrast, for IQ and SQ treated specimens, a two stage behavior corresponding to an initial rapid decrease of θ with stress (transition stage) followed by stage III hardening are observed. The dominant wear mechanism for DP steels produced by IA and IQ treatments is a combination of abrasion and oxidation, while for the SQ treated specimen, a combination of oxidation and delamination is observed.

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Section: Resultsmentioning

confidence: 96%

Influence of Heat Treatment Schedule on the Tensile Properties and Wear Behavior of Dual Phase Steels

Ashrafi

Sadeghzade

Emadi

et al. 2016

steel research int.

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“…Thermomechanical processing based on Strain Induced Martensitic (SIM) transformation followed by reversion annealing treatment has been introduced as one of the most important methods for producing ultrafine/nano grained (UFG/NG) austenitic stainless steels [1][2][3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

“…Although UFG stainless steels exhibit excellent yield and tensile strength, they sometimes show poor ductility in comparison with coarse-grained counterparts [6]. The increase of yield and tensile strength is due to the well-known Hall-Petch effect [7][8] experiments have shown that the strength of UFG/NG stainless steels is about 3 to 7 times higher than coarse-grained counterparts [1][2][3][4][5]. However, their ductility, normally uniform elongation during uniaxial tensile test, is low and this drawback can limit their commercialization [9].…”

Section: Introductionmentioning

confidence: 99%

The role of martensitic transformation on bimodal grain structure in ultrafine grained AISI 304L stainless steel

Sabooni

Karimzadeh

Enayati

et al. 2015

Materials Science and Engineering: A

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In the present study, metastable AISI 304L austenitic stainless steel samples were subjected to different cold rolling reductions from 70% to 93%, followed by annealing at 700 º C for 300 min to form ultrafine grained (UFG) austenite with different grain structures. Transmission electron microscopy (TEM) and nanoindentation were used to characterize the martensitic transformation, in order to relate it to the bimodal distribution of the austenite grain size after subsequent annealing. The results showed that the martensite morphology changed from lath type in the 60% rolled sample to a mixture of lath and dislocation-cell types in the higher rolling reductions. Calculation of the Gibbs free energy change during the reversion treatment showed that the reversion mechanism is shear controlled at the annealing temperature and so the morphology of the reverted austenite is completely dependent on the morphology of the deformation induced martensite. It was found the austenite had a bimodal grain size distribution in the 80% rolled and annealed state and this is related to the existence of different types of martensite. Increasing the rolling reduction to 93% followed by annealing caused changing of the grain structure to a monomodal like structure, which was mostly covered with small grains of around 300 nm. The existence of bimodal austenite grain size in the 80% rolled and annealed 304L stainless steel led to the improvement of ductility while maintaining a high tensile strength in comparison with the 93% rolled and annealed sample.

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“…Austenitic stainless steels are the most popular type of stainless steels with wide applications in different industries, from low-end to advanced applications like aerospace vehicles [1]. Although austenitic stainless steels possess high corrosion resistance, good formability and suitable welding properties, their relatively low hardness and yield strength have limited their wider applications [2][3][4]. Improving the mechanical properties of austenitic stainless steels have therefore become a critical concern, and advanced thermomechanical processing based on hot deformation or cold rolling-annealing is one of the most industrially applicable methods to produce nano-or ultrafine grained (UFG) austenitic stainless steels [5], which were found to exhibit high strength and ductility [2][3][4].…”

Section: Introductionmentioning

confidence: 99%

Friction-stir welding of ultrafine grained austenitic 304L stainless steel produced by martensitic thermomechanical processing

et al. 2015

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An ultrafine grained 304L austenitic stainless steel was produced by martensitic thermomechanical processing and joined by applying friction stir welding (FSW). The martensitic thermomechanical processing comprised a cold roll procedure up to 80% reduction followed by annealing. After FSW, different grain structures in different regions of the weld nugget were observed due to the asymmetry in the heat generation during the welding process. Grain growth and dynamic recovery were found to be the most predominant phenomena in the region just ahead of the rotating tool during the thermal cycle of FSW. A banded structure was observed in the advancing side of the weld nugget. TEM observations revealed that nanometric sigma phase precipitates were present both in the grain boundaries and inside the grains of this region. Shear textures were clearly identified in the weld center. The lack of rotated cube texture in the ODF sections shows that the discontinuous dynamic recrystallization (DDRX) is not active in the final microstructure. Increasing the welding speed can reduce the final grain size of the weld nugget leading to higher hardness. Hardness is found to increase in the weld nugget and this is not just a grain refinement effect, but also due to the presence of sub-boundaries and a high density of dislocations.

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The effect of grain size and martensitic transformation on the wear behavior of AISI 304L stainless steel

Cited by 48 publications

References 21 publications

Influence of Heat Treatment Schedule on the Tensile Properties and Wear Behavior of Dual Phase Steels

Influence of Heat Treatment Schedule on the Tensile Properties and Wear Behavior of Dual Phase Steels

The role of martensitic transformation on bimodal grain structure in ultrafine grained AISI 304L stainless steel

Friction-stir welding of ultrafine grained austenitic 304L stainless steel produced by martensitic thermomechanical processing

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