Effects of annealing temperature on the microstructure and properties of the 25Mn-3Si-3Al TWIP steel

Mi, Zhenli; Tang, Di; Jiang, Haitao; Dai, Yongjuan; Shensheng, LI

doi:10.1016/s1674-4799(09)60026-1

Cited by 24 publications

(4 citation statements)

References 12 publications

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“…In addition, as LNG ships and carriers have been in the spotlight recently, high manganese steel is receiving attention as a material for cryogenic steel pipes. From this point of view, studies on the processing technology such as forming, welding and heat treatment have been conducted in recent years [8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Mechanical Properties of Gas Tungsten Arc Welded High Manganese Steel Sheet

Park

et al. 2019

Metals

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This study investigated microstructure and mechanical properties of high manganese steel sheet fabricated by gas tungsten arc welding (GTAW). The weld zone showed longitudinal coarse grains due to the coalescence of columnar dendrites grown into the direction of heat source, and the HAZ showed equiaxed coarser grains than the base metal due to the thermal effect of GTAW process. Mn segregation occurred in the inter-dendritic regions of the weld zone and Mn depletion thus occurred in the weld matrix. Although the stacking fault energy is expected to be lowered due to the Mn depletion, no noticeable change in the initial phase and deformation mechanism was found in the weld matrix. Lower hardness and strength were shown in the weld zone than the base metal, which was caused by the coarser grain size. The negative strain rate sensitivity observed in the weld zone and the base metal is considered to have originated from the negative strain rate dependency of twinning nucleation stress.

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Section: Introductionmentioning

confidence: 99%

Microstructure and Mechanical Properties of Gas Tungsten Arc Welded High Manganese Steel Sheet

Park

et al. 2019

Metals

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“…FeMnC alloys with high levels of Manganese (20-30 wt.%) represent a very recent development of austenitic steels, which, through their differentiated mechanisms of deformation, in TWIP effect (Twinning Induced Plasticity) plastic deformation induced by twins and TRIP (Transformation Induced Plasticity) transformation induced by phase transformation, are of great scientific and economic relevance. Thus a work-scale study following the traditional routes of manufacture of austenitic steels (casting followed by hot mechanical conformation at temperatures above 1000 °C) is necessary, just as it has been practiced by several foreign research groups [2].…”

Section: Introductionmentioning

confidence: 99%

Microstructural and corrosion study of a “non-comercial” high manganese steel

Lima

2023

Superplasticity in Advanced Materials

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Abstract. High-Mn steels have great plasticity when subjected to deformation due to TWIP or TRIP effects. This work evaluated the microstructural evolution, the formation of the -Martensite phase taking into account the hot rolling of 80-60% and the solution annealing. Afterwards, microstructures were analyzed by SEM. Volume fraction of the Austenite and -Martensite phases were measured by EBSD technique. The steel obtained low energy levels of stacking fault, favoring the effect TRIP. Corrosion resistance in 0.1M NaCl solution was analyzed by open potential circuit and potentiodynamic polarization techniques. The analysis of the curves and the surface of the steel after the polarization tests showed that the steel with less strain had relatively nobler potential than the steel with more strain.

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“…It is known that twinning is the primary contribution of the effective deformation behavior in the high manganese austenitic TWIP steels [1,2]. Recently, Al alloying addition into the TWIP steels has been highlighted due to the positive Al influences on the deformation behavior [3]. Previous studies reported that the Al addition can cause the twinning more homogeneously during deformation and significantly prevent the delayed cracking of the conventional TWIP steels [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

“…Such enhanced formability is more advantageous though modest decreases in the tensile strength and strain hardening rate as the tensile deforms of the Al added TWIP steel specimen [4,5]. It has been proposed that there are possible increases in stacking fault energy and decreases in twinning probability due to the addition of Al alloying into the TWIP steels [3]. However, the reason is still unclear in the Al added TWIP steel up to date.…”

Section: Introductionmentioning

confidence: 99%

<i>In Situ</i> Neutron Diffraction Measurements of the Deformation Behavior in High Manganese Steels

Kang

Woo

et al. 2013

MSF

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Deformation behavior of high Mn TWIP (twinning induced plasticity) steels was observed using neutron diffraction. Two kinds of specimens were prepared; 0 and 2 wt% of Al TWIP steels. The lattice strains and peak widths of hkl grains were measured under tensile loading. The results provide an insight into the influence of the Al contents on the deformation behavior associated with the microstructure changes in TWIP steels.

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Effects of annealing temperature on the microstructure and properties of the 25Mn-3Si-3Al TWIP steel

Cited by 24 publications

References 12 publications

Microstructure and Mechanical Properties of Gas Tungsten Arc Welded High Manganese Steel Sheet

Microstructure and Mechanical Properties of Gas Tungsten Arc Welded High Manganese Steel Sheet

Microstructural and corrosion study of a “non-comercial” high manganese steel

<i>In Situ</i> Neutron Diffraction Measurements of the Deformation Behavior in High Manganese Steels

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