Hydrogen-induced hardening and softening of Ni-Nb-Zr amorphous alloys: Dependence on the Zr content

Zhao, Yakai; Choi, In-Chul; Seok, Moo-Young; Ramamurty, Upadrasta; Suh, Jin-Yoo; Jang, Jae-il

doi:10.1016/j.scriptamat.2014.08.029

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Hydrogen-induced hardening and softening of Ni-Nb-Zr amorphous alloys: Dependence on the Zr content

Zhao, Yakai;
Choi, In-Chul;
Seok, Moo-Young;
Ramamurty, Upadrasta;
Suh, Jin-Yoo;
... Jang, Jae-il

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38

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41

초록

The influence of absorbed hydrogen on the mechanical behavior of a series of Ni-Nb-Zr amorphous metallic ribbons was investigated through nanoindentation experiments. It was revealed that the influence is significantly dependent on Zr content, that is, hydrogen induced softening in relatively low-Zr alloys, whereas hydrogen induced hardening in high-Zr alloys. The results are discussed in terms of the different roles of mobile and immobile hydrogen in the plastic deformation.

키워드

Hydrogen; Amorphous alloy; Mechanical behavior; Nanoindentation; BULK METALLIC-GLASS; THERMAL-STABILITY; INDENTER ANGLE; BEHAVIOR; MEMBRANES; NANOINDENTATION; DEFORMATION; INDENTATION; HARDNESS; VOLUME

제목: Hydrogen-induced hardening and softening of Ni-Nb-Zr amorphous alloys: Dependence on the Zr content

저자: Zhao, Yakai; Choi, In-Chul; Seok, Moo-Young; Ramamurty, Upadrasta; Suh, Jin-Yoo; Jang, Jae-il

DOI: 10.1016/j.scriptamat.2014.08.029

발행일: 2014-12

유형: Article

저널명: Scripta Materialia

권: 93

페이지: 56 ~ 59