The role of reversed austenite in hydrogen embrittlement fracture of S41500 martensitic stainless steel

Fan, Yuheng; Zhang, B.; Yi, Hong-Liang; Hao, Guannan; Sun, Ying; Wang, J.Q.; Han, En‐Hou; Ke, Wei

doi:10.1016/j.actamat.2017.08.011

Cited by 123 publications

(32 citation statements)

References 57 publications

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“…Tests were performed with reference to NACE TM0198 and ASTM G129 [20,21], and charging methods are reported in Section 2.3.1. The test results were finally analyzed in terms of embrittlement index, calculated with reference to the samples' elongation at break, Equation (2). A reduction of 30% was considered as the threshold value in agreement with reference standard ASTM STP 962 [22].…”

Section: Slow Strain Rate Testsmentioning

confidence: 99%

“…Standard conditions were applied (pH = 3.5, hydrochloric acid [Cl − ] = 100 ppm, buffer CH3COONa, ptot = 1 bar, pH2S = 10% ptot, room temperature) [23]. The test results were finally analyzed in terms of embrittlement index, calculated with reference to the samples' elongation at break, Equation (2). A reduction of 30% was considered as the threshold value in agreement with reference standard ASTM STP 962 [22].…”

Section: Slow Strain Rate Testsmentioning

confidence: 99%

“…For groups X and O, larger transgranular quasi-cleavage areas were found. The fracture mode therefore appears to be correlated with the amount of retained austenite and quasicleavage was dominant for higher austenite amounts [2,25]. to evaluate the main fracture mode.…”

Section: Sem Fractographic Analysismentioning

confidence: 99%

“…Supermartensitic stainless steels have been developed to offer increased corrosion resistance, especially in sour environments (containing hydrogen sulphide H 2 S) [1][2][3]. They also present remarkable weldability and fracture toughness even at low temperatures, in comparison with traditional martensitic stainless steels.…”

Section: Introductionmentioning

confidence: 99%

“…Hydrogen-enhanced local plasticity (HELP) instead consists of hydrogen promotion of planar slips and dislocation motion, showing localized plastic deformation and slip-band cracking. Finally, the adsorption-induced dislocation emission (AIDE), is where adsorbed hydrogen is responsible for dislocation emission towards a crack tip and the cracking is nanocleavage-like [2,9,10].…”

Section: Introductionmentioning

confidence: 99%

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Influence of Thermal Treatment on SCC and HE Susceptibility of Supermartensitic Stainless Steel 16Cr5NiMo

Bacchi¹,

Biagini²,

Corsinovi³

et al. 2020

Materials

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A 16Cr5NiMo supermartensitic stainless steel was subjected to different tempering treatments and analyzed by means of permeation tests and slow strain rate tests to investigate the effect of different amounts of retained austenite on its hydrogen embrittlement susceptibility. The 16Cr5NiMo steel class is characterized by a very low carbon content. It is the new variant of 13Cr4Ni. These steels are used in many applications, for example, compressors for sour environments, offshore piping, naval propellers, aircraft components and subsea applications. The typical microstructure is a soft-tempered martensite very close to a body-centered cubic, with a retained austenite fraction and limited δ ferrite phase. Supermartensitic stainless steels have high mechanical properties, together with good weldability and corrosion resistance. The amount of retained austenite is useful to increase low temperature toughness and stress corrosion cracking resistance. Experimental techniques allowed us to evaluate diffusion coefficients and the mechanical behaviour of metals in stress corrosion cracking (SCC) conditions.

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Section: Slow Strain Rate Testsmentioning

confidence: 99%

Section: Slow Strain Rate Testsmentioning

confidence: 99%

Section: Sem Fractographic Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Influence of Thermal Treatment on SCC and HE Susceptibility of Supermartensitic Stainless Steel 16Cr5NiMo

Bacchi¹,

Biagini²,

Corsinovi³

et al. 2020

Materials

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Hydrogen‐induced Damage ( HTHA , Embrittlement and Blistering)

2024

Hydrogen Energy

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Effect of Intercritical Austenitizing Temperature during Quenching–Intercritical Quenching–Tempering Process on Toughness of 25Mn2Si2Cr Bainitic Steel

Tan

Zhang

et al. 2019

steel research int.

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An intercritical quenching process is introduced between conventional water quenching and tempering to 25Mn2Si2Cr bainitic steel. The study suggests that the quenching–intercritical quenching–tempering (Q–IQ–T) process effectively improves mechanical properties compared with conventional air cooling and tempering (Q–T). When the intercritical austenitizing temperature is 860 °C, as‐treated steel's tensile strength, yield strength, impact energy (U‐notch) is 1453 MPa, 1141 MPa, and 99 J cm−2, respectively, which is enhancement of 5.4%, 3.2%, and 20.7% compared with the conventional Q–T process. The increase of toughness is achieved without compromising strength. The improvement of toughness arises from refinement of grain size and microstructure.

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The role of reversed austenite in hydrogen embrittlement fracture of S41500 martensitic stainless steel

Cited by 123 publications

References 57 publications

Influence of Thermal Treatment on SCC and HE Susceptibility of Supermartensitic Stainless Steel 16Cr5NiMo

Influence of Thermal Treatment on SCC and HE Susceptibility of Supermartensitic Stainless Steel 16Cr5NiMo

Hydrogen‐induced Damage ( HTHA , Embrittlement and Blistering)

Effect of Intercritical Austenitizing Temperature during Quenching–Intercritical Quenching–Tempering Process on Toughness of 25Mn2Si2Cr Bainitic Steel

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