鋼構造物の溶融亜鉛- 5%アルミニウム合金めっきの耐食性評価

概要

論文の詳細を見る
A new hot dip process for Zn-5%Al alloy coating on the steel structures was developed under suitable galvanizing conditions.The characteristics of the Zn-5%Al alloy coating were examined and its corrosion resistance was evaluated by a salt water spray test,an atmospheric exposure test and a coulostatic method.It was clarified that from the results of chemical analysis,X-rey spectra,EPMA and hardness test,the coating prepared under the new type hot dip coating process exhibited superior qualities,especially,a coating layer consisting of Fe_2Al_5+Zn alloy formed in Zn-5%Al bath has the best corrosion resistance.In addition,the results relating to the corrosion resistance clearly suggested that the coulostatic method may be useful for estimation of the repid corrosion rate instead of the salt water spray test.
社団法人日本材料学会の論文
1993-08-15