J0404-2-2 高速フレーム(HVAF)溶射によるL字型基材角部の高力黄銅皮膜特性(粒子積層による膜創製の学理(2))

概要

論文の詳細を見る
High velocity air fuel spraying (HVAF) is common process for deposition of coatings of various materials. Object to be sprayed is generally complicated shapes. Therefore, spray distance and spray angle are various. However, there is a few reports about it. In this study, it was aimed to clear the High-strength brass coating properties on L-shaped substrate. High-strength brass is good abrasion resistance and heat transfer. High-strength brass coating can be formed on L-shaped substrate. Vickers hardness at flat plate part is the same or more than bulk material and base powder. Although, in same spray angle at right angle part, Vickers hardness fall about 20% compared with flat plate part. From these results obtained, it seemed that high porosity cause of the flame jet changed by substrate shape.
2009-09-12