Corrosion-resistant and heat-resistant amorphous aluminum-based

Metal treatment – Stock – Amorphous – i.e. – glassy

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20419212, 20419214, 423 51, 427294, 427295, 427296, 428650, C22C 2100, C22C 100

Patent

active

050153080

ABSTRACT:
The present invention provides a corrosion-resistant and heat-resistant aluminum-based alloy thin film consisting of a composite having a composition represented by the general formula, Al.sub.a Ni.sub.b X.sub.c N.sub.d, wherein: X is a metal element selected from Y and Zr and a, b, c and d are as follows, in atomic percentages: 70.ltoreq.a.ltoreq.93, 0.5.ltoreq.b.ltoreq.7.5, 0.5.ltoreq.c.ltoreq.12 and 1.ltoreq.d.ltoreq.18, the composite being at least 50% (by volume) composed of an amorphous phase. The thin films are produced by depositing a material having the composition represented by the above-defined general formula onto a substrate by a thin film formation technique, such as sputtering, vacuum deposition or ion plating. In the production process, only nitrogen may be supplied as gas. The novel aluminum-based alloy thin film has superior corrosion-resistance and heat-resistance together with high levels of hardness and wear resistance. Further, the thin films can be subjected to a high degree of bending.

REFERENCES:
Efimou et al., "Supersaturation of the Solid Solution in Aluminum Binary Alloys during Rapid Quenching", Chemical Abstracts, No. 112:221260t, 1989.

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