Hydrogen embrittlement of amorphous alloys based on iron and nickel

Flis, J.; Ashok, S.; Stoloff, N. S.; Duquette, D. J.

doi:10.1016/0001-6160(87)90035-6

Cited by 35 publications

(8 citation statements)

References 22 publications

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“…4) HE of metal-metalloid amorphous alloys based on iron and nickel has been observed after or during cathodic polarization. [5][6][7][8][9] Recently, that of metal-metal metallic glasses, such as Zr-Ti-Ni-Cu-Be 10) and Ti-Ni-Cu 11) has been reported. In the Zr-based metallic glass, an increase of flow stress and degradation of fracture toughness were observed.…”

Section: Introductionmentioning

confidence: 99%

Mechanical Properties of Melt-Spun Amorphous Ni-Nb-Zr Alloys after Hydrogen Charging

et al. 2006

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The effect of pre-charged hydrogen on the mechanical behavior of melt-spun amorphous Ni-Nb-Zr alloys was investigated. A substantial increase in the tensile fracture strength is observed even in hydrogen content up to about 46 at%. The Vickers hardness gradually increases with an increase in hydrogen content up to about 27 at%, and keeps almost the same value in the higher content more than 46 at%. It might be said that the amorphous (Ni 0:6 Nb 0:4 ) 70 Zr 30 alloy is not embrittled distinctly even in the high hydrogen content at room temperature. The amorphous alloy ribbons always curled during hydrogenation and the outer side of the curled ribbon corresponds to the roll side due to preferential absorption of hydrogen. XPS study revealed that the zirconium content in the surface film of the roll side surface is lower than that of the top side surface. The difference in surface composition as well as higher surface roughness of the roll side surface seems responsible for the preferential hydrogen absorption.

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Section: Introductionmentioning

confidence: 99%

Mechanical Properties of Melt-Spun Amorphous Ni-Nb-Zr Alloys after Hydrogen Charging

et al. 2006

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“…Hydrogen can cause hydrogen damage, hydrogen blister, hydrogen-induced plasticity loss, i.e., hydrogen embrittlement and hydrogen-induced cracking [1][2][3]. For metallic glasses, both ribbon and bulk metallic glasses revealed susceptibility to hydrogen embrittlement, hydrogen damage, i.e., hydrogen bubble and hydrogen-induced cracking [4][5][6][7][8][9][10][11][12][13]. For example, Suh et al [12] and Shan et al [13] found that hydrogen blistering and hydrogen-induced cracking could form in ZrTiNiCuBe bulk metallic glass during charging with high hydrogen concentration.…”

Section: Introductionmentioning

confidence: 99%

Hydrogen blistering and hydrogen-induced cracking in amorphous nickel phosphorus coating

Zhou

et al. 2007

Journal of Non-Crystalline Solids

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“…Metallic glasses also exhibit significant hydrogen-induced embrittlement by absorbing hydrogen. [5][6][7][8][9][10][11][12][13][14][15] Suh et al examined the hydrogen-induced embrittlement of Zr-Ti-Ni-Cu-Be bulk metallic glass. They also reported that not only mechanical properties but also T g and T x changed after hydrogenation.…”

Section: Introductionmentioning

confidence: 99%

Effects of Hydrogen on the Mechanical Properties of Ti50Ni25Cu25 Metallic Glass

et al. 2002

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A number of studies on the internal friction of hydrogenated amorphous alloys have been recently performed in order to develop new high damping materials with mechanical strength higher than that of crystalline ones. In this work, effects of hydrogen on the mechanical properties such as fracture strength and internal friction have been investigated in a Ti 50 Ni 25 Cu 25 metallic glass. It is found that the Ti 50 Ni 25 Cu 25 metallic glass has high fracture strength even after absorbing hydrogen up to 24.7 at%, while the fracture strength decreases significantly in the high hydrogen content up to about 40 at%. It is also found that the internal friction peak Q −1 is about 5.0 × 10 −2 at 185 K in the case of 40.2 at% hydrogen content. It should be noted that the peak temperature is observed between room temperature and 185 K and decreases with increasing hydrogen content while the peak height increases gradually with increasing hydrogen content.

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Hydrogen embrittlement of amorphous alloys based on iron and nickel

Cited by 35 publications

References 22 publications

Mechanical Properties of Melt-Spun Amorphous Ni-Nb-Zr Alloys after Hydrogen Charging

Mechanical Properties of Melt-Spun Amorphous Ni-Nb-Zr Alloys after Hydrogen Charging

Hydrogen blistering and hydrogen-induced cracking in amorphous nickel phosphorus coating

Effects of Hydrogen on the Mechanical Properties of Ti<SUB>50</SUB>Ni<SUB>25</SUB>Cu<SUB>25</SUB> Metallic Glass

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