Effects of Heat Treatment on the Structure, Corrosion Resistance and Stripping of Electroless Nickel Coatings
1983; Taylor & Francis; Volume: 61; Issue: 1 Linguagem: Inglês
10.1080/00202967.1983.11870653
ISSN1745-9192
AutoresM. Sadeghi, Peter D. Longfield, C.F. Beer,
Tópico(s)High Entropy Alloys Studies
ResumoSummaryEffects of heat treatment on the structure and corrosion resistance of a conventional electroless nickel deposit containing 8.4 wt% phosphorus and high integrity electroless nickel alloy containing 12.2 wt% phosphorus were studied. Differential thermal analysis indicated an exothermic effect at 330°C for both types of deposits. Changes in corrosion resistance after heat treatment at 150–800°C were correlated with structural changes shown by X-ray diffraction and with those revealed in optical and scanning electron micrographs. Significant changes in the structure, hardness and stripping rate of as-plated alloys were observed for coatings heat treated within the range 200–400°C.
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