CORROSION-RESISTANT TERMINAL MATERIAL, CORROSION-RESISTANT TERMINAL, AND WIRE END STRUCTURE
FIG11] It is a micrograph of a section of a terminal material of a test piece 30 
FIG11 is an electron micrograph of a section at the planned core wire contact part regarding the test piece 30: it can be recognized that the ground layer (the nickel layer), the zinc-nickel alloy layer and the tin layer are formed from the substrate side though; the outermost surface part of the tin layer cannot be discriminated.
micrograph section view
5
tin layer
12
electric wire
11
connection part
20
thickness etching
40
than if it exceeds
200
acceleration voltage
15
male terminal
10
terminal terminals
21
carriers carrier test pieces
800
about
['1. A corrosion-resistant terminal material comprising a substrate made of copper or a copper alloy and a film layered on the substrate, wherein a planned core wire contact part which is in contact with a core wire of an electric wire when a terminal is formed and a planned contact part to be a contact part are formed; the film formed in the planned core wire contact part has a tin layer made of tin or a tin alloy and a metallic zinc layer formed on the tin layer; and the film formed in the planned contact part has a tin layer made of tin or a tin alloy but does not have the metallic zinc layer.', '3. The corrosion-resistant terminal material according to claim 2, wherein the zinc-nickel alloy layer has a nickel content percentage not less than 5% by mass and not more than 35% by mass.', '5. The corrosion-resistant terminal material according to claim 1, wherein the metallic zinc layer has a zinc density not less than 5 at% and not more than 40 at%, and a  thickness in terms of SiO 2  not less than 1 nm and not more than 10 nm.', '8. The corrosion-resistant terminal material according to claim 1, wherein being formed in a belt sheet shape, and to a carrier along a longitudinal direction thereof, terminal members having the planned core wire contact part and the planned contact part are coupled, with intervals along a longitudinal direction of the carrier.']