Development of a methodology to study the hydrogen embrittlement of steels by means of the small punch test

García, T.E.; Rodríguez, Celestino; Belzunce, F. J.; Peñuelas, I.; Arroyo, Borja

doi:10.1016/j.msea.2014.12.083

Cited by 53 publications

(28 citation statements)

References 24 publications

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“…Three CrMoV steels were used in this study: the base metal (CrMoV-1), with a high resistance to hydrogen embrittlement [9], a high strength weld metal (CrMoV-2), which is highly susceptible to this phenomenon [9], and this same weld metal after being subjected to an intermediate heat treatment (CrMoV-3). Figure 1 shows the microstructure of CrMoV-1 (tempered martensite) and CMoV-2 (lath martensite).…”

Section: Methodsmentioning

confidence: 99%

“…The effect of hydrogen embrittlement on the tensile properties degradation of CrMoV steels was analyzed by means of a custom designed SPT device, which is depicted in Figure 3a and is thoroughly described in [9]. This device allows to test the specimens inside a hydrogen environment.…”

Section: Tensile Properties Determinationmentioning

confidence: 99%

“…Expressions (1)- (3) were used for estimating the tensile properties by means of SPT, in both air and hydrogen environment. Py was calculated as the intersection between the SPT curve and a straight line running parallel to the initial elastic slope with an offset of t/10, where t is the initial specimen thickness [9,10]. Pm is the maximum test load and dm the displacement at maximum load.…”

Section: Tensile Properties Determinationmentioning

confidence: 99%

“…In the tensile test, the specimen contour is totally submerged in hydrogen, and more aggressive conditions are developed. Moreover, it was observed in a previous work [9] that CrMoV-2 is very sensitive to hydrogen embrittlement, due to its microstructure (virgin lath martensite), and a less aggressive environment should be used for the analysis of this steel (i.e. reducing current density).…”

Section: Figure 5 A) Fracture Of Specimens Tested In Air B) Fracturementioning

confidence: 99%

“…SPT allows to estimate parameters as the yield stress, ultimate tensile strength and even fracture toughness of metallic materials with high reliability [6]. Throughout the last years some authors have proved the validity of the SPT to be used in HE and SCC characterizations [7][8][9], having the advantage of being faster, easier and safer to perform than the standard tests. This paper presents a review of the characterization of HE on a high strength steel by SPT using two approaches, which will be subsequently compared to conventional mechanic tests.…”

Section: Introductionmentioning

confidence: 99%

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Small punch test methodologies for the analysis of the hydrogen embrittlement of structural steels

García

Arroyo

Rodríguez

et al. 2016

Theoretical and Applied Fracture Mechanics

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Section: Methodsmentioning

confidence: 99%

Section: Tensile Properties Determinationmentioning

confidence: 99%

Section: Tensile Properties Determinationmentioning

confidence: 99%

Section: Figure 5 A) Fracture Of Specimens Tested In Air B) Fracturementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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