302 コールドスプレー法による鋼構造物の補修と補修部のキャラクタリゼーション(OS3-1 薄膜・コーティング材の機械的特性と界面強度特性)

概要

論文の詳細を見る
In the case of cold spraying, small particles are accelerated to subsonic or supersonic velocity by high temperature and supersonic gas flow, and then impact onto a substrate. When particles impact onto a substrate, kinetic energy of the particles is converted to plastic deformation energy, namely plastic deformation is required for deposition. Because of requirement of plastic deformation, hard materials, such as high carbon steels, can be difficult to deposit on the substrate. And also, due to large plastic deformation, work hardening can be occurred. In this study, in order to develop an innovative repairing technique for high carbon steel by cold spraying, mechanical milled powders were applied for cold spraying. By using mechanical milled powders, a dense and thick coating was obtained.
一般社団法人日本機械学会の論文
2010-10-09