Evaluation of Hydrogen Embrittlement of Electroless Ni–P Plated 6061-T6 Aluminum Alloy by Three-Point Bending and Rotating Bending Fatigue Tests.

Autor: Makoto Hino, Ryohei Shinno, Kota Kawaue, Ryoichi Kuwano, Koji Monden, Masaaki Sato, Yukinori Oda, Keitaro Horikawa, Teruto Kanadani
Předmět:
Zdroj: Materials Transactions; 2024, Vol. 65 Issue 3, p302-307, 6p
Abstrakt: In this study, 6061-T6 aluminum alloys were plated with electroless Ni–P with different phosphorus content and three-point bending and rotating bending fatigue tests. The effects of hydrogen due to plating on mechanical properties were investigated. It was shown that the ductility decreased immediately after low-phosphorus type and high-phosphorus type Ni–P plating by three-point bending test because a hydrogen was introduced into the alloys. The fatigue strength of the low-phosphorus type Ni–P plated specimen was higher than that of the un-treated specimen, while that of the high-phosphorus type plated specimen was much lower. It is clear that the fatigue strength differs greatly depending on the phosphorus content in the plating film. 6061-T6 aluminum alloy have been reported to exhibit no hydrogen embrittlement in low strain rate tensile tests under wet condition. However, it was found that hydrogen embrittlement occurred when 6061-T6 aluminum alloy was plated with the high-phosphorus type electroless Ni–P and fatigue-tested on rotating bending machine. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index