MEMBER AND PRODUCTION METHOD THEREFOR

Reliability of a member made of dissimilar metals is improved. A member includes: a first metallic region made of a first material; a second metallic region made of a second material that is a different material from the first material; and a mix region made of mixture of the first material and the...

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Bibliographische Detailangaben
Hauptverfasser: SHIRATORI, Hiroshi, KAWANAKA, Hirotsugu, KUNITOMO, Kenichiro, KOSEKI, Shuho
Format: Patent
Sprache:eng ; fre ; ger
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Beschreibung
Zusammenfassung:Reliability of a member made of dissimilar metals is improved. A member includes: a first metallic region made of a first material; a second metallic region made of a second material that is a different material from the first material; and a mix region made of mixture of the first material and the second material between the first metallic region and the second metallic region. In this case, in a cross-sectional view, an interface between the first metallic region and the mix region is represented by a line having a first curved line protruding toward the first metallic region and a second curved line protruding toward the first metallic region, and an angle at a cross point of the first curved line and the second curved line, the angle being made by a tangent line of the first curved line and a tangent line of the second curved line in a region of the first metallic region, is equal to or larger than 70 degrees and smaller than 180 degrees.