Toughness of Zr55Cu30Al10Ni5 bulk metallic glass for two oxygen levels
This paper demonstrates the embrittlement of a Zr-based bulk metallic glass caused by the presence of very low oxygen traces during its synthesis. Toughness studies are conducted both at room and low (77K) temperatures. Samples with 2000appm of oxygen contain crystalline defects (trapping all oxygen...
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| Veröffentlicht in: | Journal of non-crystalline solids 2006-08, Vol.352 (26-27), p.2863-2868 |
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| container_end_page | 2868 |
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| container_issue | 26-27 |
| container_start_page | 2863 |
| container_title | Journal of non-crystalline solids |
| container_volume | 352 |
| creator | Keryvin, V. Bernard, C. Sanglebœuf, J.-C. Yokoyama, Y. Rouxel, T. |
| description | This paper demonstrates the embrittlement of a Zr-based bulk metallic glass caused by the presence of very low oxygen traces during its synthesis. Toughness studies are conducted both at room and low (77K) temperatures. Samples with 2000appm of oxygen contain crystalline defects (trapping all oxygen) while those with 300appm are completely glassy. Toughness results clearly indicate that these defects embrittle the glass. Therefore, careful attention must be paid during synthesis with respect to the oxygen content to get a completely glassy alloy. This issue is of paramount importance when dealing with mechanical properties such as toughness. |
| doi_str_mv | 10.1016/j.jnoncrysol.2006.02.102 |
| format | Article |
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Toughness studies are conducted both at room and low (77K) temperatures. Samples with 2000appm of oxygen contain crystalline defects (trapping all oxygen) while those with 300appm are completely glassy. Toughness results clearly indicate that these defects embrittle the glass. Therefore, careful attention must be paid during synthesis with respect to the oxygen content to get a completely glassy alloy. 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Toughness studies are conducted both at room and low (77K) temperatures. Samples with 2000appm of oxygen contain crystalline defects (trapping all oxygen) while those with 300appm are completely glassy. Toughness results clearly indicate that these defects embrittle the glass. Therefore, careful attention must be paid during synthesis with respect to the oxygen content to get a completely glassy alloy. 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Toughness studies are conducted both at room and low (77K) temperatures. Samples with 2000appm of oxygen contain crystalline defects (trapping all oxygen) while those with 300appm are completely glassy. Toughness results clearly indicate that these defects embrittle the glass. Therefore, careful attention must be paid during synthesis with respect to the oxygen content to get a completely glassy alloy. This issue is of paramount importance when dealing with mechanical properties such as toughness.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/j.jnoncrysol.2006.02.102</doi><tpages>6</tpages><orcidid>https://orcid.org/0000-0002-6264-7796</orcidid><orcidid>https://orcid.org/0000-0001-7426-6125</orcidid><orcidid>https://orcid.org/0000-0002-9961-2458</orcidid></addata></record> |
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| source | Elsevier ScienceDirect Journals Complete |
| subjects | Amorphous metals, metallic glasses Condensed matter: structure, mechanical and thermal properties Engineering Sciences Exact sciences and technology Fatigue, brittleness, fracture, and cracks Fracture Mechanical and acoustical properties of condensed matter Mechanical properties Mechanical properties of solids Mechanics Physics |
| title | Toughness of Zr55Cu30Al10Ni5 bulk metallic glass for two oxygen levels |
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