FE-NI ALLOY HAVING GOOD PLATING PROPERTY AND SOLDERABILITY

PURPOSE:To obtain an Fe-Ni alloy having excellent plating property and solderability while maintaining the basic properties of the Fe-Ni alloy by incorporating a prescribed ratio of B into the specifically composed Fe-Ni alloy. CONSTITUTION:This Fe-Ni alloy contains <=0.05% C, <=0.03% N, <=...

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Bibliographic Details
Main Authors TSUDA MASAOMI, NEMOTO RIKIO
Format Patent
LanguageEnglish
Published 06.12.1986
Subjects
ALLOYS
BASIC ELECTRIC ELEMENTS
CHEMISTRY
ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
FERROUS OR NON-FERROUS ALLOYS
METALLURGY
SEMICONDUCTOR DEVICES
TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Summary:PURPOSE:To obtain an Fe-Ni alloy having excellent plating property and solderability while maintaining the basic properties of the Fe-Ni alloy by incorporating a prescribed ratio of B into the specifically composed Fe-Ni alloy. CONSTITUTION:This Fe-Ni alloy contains <=0.05% C, <=0.03% N, <=2.0% Si, <=3.0% Mn, <=1.0% Cr, >=25% Ni and 0.002-0.02% B, contains, if necessary <=6.0% Mo and/or <=20% Co and consists of the balance Fe. The above- mentioned Fe-Ni alloy is further incorporated therein with 0.005-0.4% >=1 kinds among Nb, Ti, Zr and Al. The oxygen-enriched layer on the surface of the above-mentioned B-contg. alloy produced by annealing in an ordinary non-oxidizing atmosphere is fairly thin and the B is concd. in the surface layer. The uniform B nitride layer is formed in the surface layer in the non-oxidizing atmosphere. The surface thickening of the other components is therefore suppressed and the oxide layer is hardly formed. The autoreduction of the oxide film arises in a plating liquid. The adsorption of the nuclei of plating is liable to arise and the plating property is improved.
Bibliography:Application Number: JP19850118900