C - Chemistry – Metallurgy – 22 – C
Patent
C - Chemistry, Metallurgy
22
C
C22C 45/00 (2006.01) C22C 45/08 (2006.01) C23C 2/04 (2006.01) C23C 2/26 (2006.01)
Patent
CA 2657779
An alloy having high amorphous formability comprising 20 to 85 at% in total of elements (A) whose atomic radiuses are less than 0.145nm, 10 to 79.7at% in total of elements (B) whose atomic radiuses are 0.145nm to less than 0.17nm, and 0.3 to 15at% in total of elements (C) whose atomic radiuses are 0.17nm or above, characterized in that when element (a) refers to one of the elements (A) which has the highest content among the elements (A), element (b) refers to one of the elements (B) which has the highest content among the elements (B), and element (c) refers to one of the elements (C) which has the highest content among the elements (C), element (a) (such as Zn and/or Al), element (b) (such as Mg), and element (c) (such as Ca) account for at least 70at% of the total content of the elements (A), the total content of the elements (B), and the total content of the elements(C) respectively and the enthalpy of formation of a liquid between any two selected from among elements (a), (b) and (c) is negative.
L'invention concerne un alliage doté d'une formabilité amorphe élevée et comprenant un total de 20 à 85 % d'élément (A) dont les rayons atomiques sont inférieurs à 0,145 nm ; un total de 10 à 79,7 % d'éléments (B) dont les rayons atomiques sont de 0,145 nm à moins de 0,17 nm ; et un total de 0,3 à 15 % d'éléments (C) dont les rayons atomiques sont de 0,17 nm ou plus, ledit alliage étant caractérisé en ce que, lorsqu'un élément (a) se réfère à l'un des éléments (A) et possède la teneur la plus élevée parmi les éléments (A), l'élément (b) se réfère à l'un des éléments (B) présentant la teneur la plus élevée parmi les éléments (B), et l'élément (c) se réfère à l'un des éléments (C) présentant la teneur la plus élevée parmi les éléments (C) ; l'élément (a) (tel que Zn et/ou Al), l'élément (b) (tel que Mg) et l'élément (c) (tel que Ca) représentant respectivement au moins 70 % de la teneur totale des éléments (A), de la teneur totale des éléments (B) et de la teneur totale des éléments (C), l'enthalpie de formation d'un liquide entre n'importe deux éléments choisis parmi les éléments (a), (b) et (c) étant négative.
Nakazawa Makoto
Nose Koichi
Sato Yuichi
Tokuda Kohei
Goudreau Gage Dubuc
Nippon Steel Corporation
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