Influence of post-heat treatment and complexing agents on hardness of Ni–Cr alloy coatings

作者: M.E. Bahrololoom , A. Hoveidaei

DOI: 10.1179/026708499101516830

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摘要: Abstract The presence of complexing agents in the electroplating bath and post-heat treatment are two factors which influence structure electroplated alloy coatings. Any change is accompanied by changes coating physical mechanical properties such as hardness. aim this study was to investigate effects present on hardness Ni–Cr coatings obtained from different baths, one containing sodium citrate its agent other dimethyl- formamide. both types increased with chromium content. Coatings were generally harder than those dimethylformamide. Alloy 18 35%Cr selected for study. did not decrease after heat up about 300°C, but further increase annealing tem...

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