クエン酸浴によるニッケル-タングステン合金メッキの耐摩耗性と耐食性について

抄録

Abrasion and acid resistances of Ni-W alloy plating obtained from citric acid baths were studied and they were compared with those of Ni plating and hard chrome plating.
The following results were obtained:
(1) Ni-W alloy plating, when rubbed with S15C (heat-treated), gave abrasion resistance higher than that of S15C (heat-treated) or Ni plating obtained from Watts bath. Heat-treated Ni-W alloy plating gave abrasion resistance nearly the same as that of hard chrome plating.
(2) Ni-W alloy plating gave higher abrasion resistance when rubbed with the same alloy rather than with a different alloy or metal.
(3) The abrasion in wet process (oil lubrication) was nearly the same as that in dry process.
(4) Ni-W plating obtained from citric acid baths gave specially high corrosion resistance against nitric acid.