Reactive casting of NiAl and simultaneous joining to steel

被引：0
|
作者：
Matsuura, K [1 ]
Kudoh, M [1 ]
机构：
[1] Hokkaido Univ, Div Engn & Mat Sci, Sapporo, Hokkaido 0608628, Japan
来源：
SECOND INTERNATIONAL CONFERENCE ON PROCESSING MATERIALS FOR PROPERTIES | 2000年
关键词：
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Molten aluminum and nickel cast onto a steel block exothermically react and produce molten nickel monoaluminide, NiAl, which is simultaneously joined to the steel. The heat of the exothermic reaction is transferred to the steel block, and steel near the surface of the block is melted. The depth of the melted steel increases with both the initial temperature of the steel block and the thickness of the produced NiAl. Iron from the melted steel dissolves in the molten NiAl, and an intermetallic compound of NiAl-Fe pseudo-binary system is produced. During solidification of the intermetallic compound, it is strongly joined to the steel. The NiAl-Fe intermetallic compound has an excellent resistance to oxidation and corrosion.
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页码：1053 / 1058
页数：6
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