Critical Assessment 2: Hydrogen induced fracture in austenitic, high-manganese TWIP steel

Suh, Dong‐Woo

doi:10.1179/1743284714y.0000000566

Cited by 14 publications

(5 citation statements)

References 48 publications

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“…[103][104][105][106][107][108] However, it is known that adding less than 2 wt% of aluminium ameliorates the situation. 60,109) Possible mechanisms of the role of aluminium include:…”

Section: Atomic Trapsmentioning

confidence: 99%

Prevention of Hydrogen Embrittlement in Steels

2016

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The essential facts about the nature of the hydrogen embrittlement of steels have now been known for 140 years. It is diffusible hydrogen that is harmful to the toughness of iron. It follows, therefore, that the harmful influence of diffusible hydrogen can be mitigated by preventing its entry into steel or by rendering it immobile once it penetrates the material. This review deals with the methods that might be implemented to design steels and components that resist hydrogen embrittlement by reducing the intake of hydrogen or rendering it innocuous when it does penetrate the steel.

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“…[103][104][105][106][107][108] However, it is known that adding less than 2 wt% of aluminium ameliorates the situation. 60,109) Possible mechanisms of the role of aluminium include:…”

Section: Atomic Trapsmentioning

confidence: 99%

Prevention of Hydrogen Embrittlement in Steels

2016

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“…Negligible mechanical degradation has been observed using tensile tests with specimens pre-charged with hydrogen [148,178,182,183]. Little difference was observed by So et al between the mechanical properties of Fe−18Mn−1.5Al−0.6C TWIP steel charged with different amounts of hydrogen contents and those without hydrogen charging [137].…”

Section: Hydrogen Embrittlement Of High-mn Twip Steelsmentioning

confidence: 99%

“…Hydrogen-induced fracture in TWIP steels was studied by Suh, who determined hydrogen experienced limited penetration, thus little change in mechanical properties was observed [183]. Contrarily, Koyama et al discovered that mechanical properties of Fe−18Mn−0.6C and Fe−18Mn−1.2C TWIP steel decrease significantly in the presence of hydrogen [171].…”

Section: Hydrogen Embrittlement Of High-mn Twip Steelsmentioning

confidence: 99%

Corrosion Mechanisms of High-Mn Twinning-Induced Plasticity (TWIP) Steels: A Critical Review

Bastidas

Ress

Bosch

et al. 2021

Metals

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Twinning-induced plasticity (TWIP) steels have higher strength and ductility than conventional steels. Deformation mechanisms producing twins that prevent gliding and stacking of dislocations cause a higher ductility than that of steel grades with the same strength. TWIP steels are considered to be within the new generation of advanced high-strength steels (AHSS). However, some aspects, such as the corrosion resistance and performance in service of TWIP steel materials, need more research. Application of TWIP steels in the automotive industry requires a proper investigation of corrosion behavior and corrosion mechanisms, which would indicate the optimum degree of protection and the possible decrease in costs. In general, Fe−Mn-based TWIP steel alloys can passivate in oxidizing acid, neutral, and basic solutions, however they cannot passivate in reducing acid or active chloride solutions. TWIP steels have become as a potential material of interest for automotive applications due to their effectiveness, impact resistance, and negligible harm to the environment. The mechanical and corrosion performance of TWIP steels is subjected to the manufacturing and processing steps, like forging and casting, elemental composition, and thermo-mechanical treatment. Corrosion of TWIP steels caused by both intrinsic and extrinsic factors has posed a serious problem for their use. Passivity breakdown caused by pitting, and galvanic corrosion due to phase segregation are widely described and their critical mechanisms examined. Numerous studies have been performed to study corrosion behavior and passivation of TWIP steel. Despite the large number of articles on corrosion, few comprehensive reports have been published on this topic. The current trend for development of corrosion resistance TWIP steel is thoroughly studied and represented, showing the key mechanisms and factors influencing corrosion processes, and its consequences on TWIP steel. In addition, suggestions for future works and gaps in the literature are considered.

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“…1 This excellent combination of mechanical properties is associated with the activation of and interaction between various mechanisms, including slip, twinning, microvoids and phase transformation. [2][3][4][5][6] Stacking fault energy (SFE) has a distinctive role on the activities of these mechanisms, especially in twinning induced plasticity (TWIP) steels, 7,8 and the SFE itself is dictated by temperature and alloy composition. In particular, an increase in temperature increases the Gibbs free energy change required for any change in the lattice order and, hence, the SFE.…”

Section: Introductionmentioning

confidence: 99%