http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Heat Treated Twin Wire Arc Spray AISI 420 Coatings Under Dry and Wet Abrasive Wear
E. Rodriguez,M. A. González,H. R. Monjardín,O. Jimenez,M. Flores,J. Ibarra 대한금속·재료학회 2017 METALS AND MATERIALS International Vol.23 No.6
The influence of applying two different heat treatments such as: deep cryogenic and tempering on dry/wetabrasive wear resistance of twin wire arc spray martensitic AISI 420 coatings was evaluated by using a modifiedrubber wheel type test apparatus. A load dependency was observed on the abrasive wear rate behavior ofboth; dry and wet tests. Three body (rolling) and two body (sliding) wear mechanisms were identified in dryconditions, prevailing rolling at lower and higher loads. However, at higher loads, more presence of groovingand pits formation was observed. Coatings tempered at 205 °C/1 h displayed better wear resistance thancryogenic treated ones. A change in wear mechanism between dry and wet conditions was observed; two bodywear mechanism predominated respect to three body. In both; dry and wet conditions the microstructure(several inter-splat oxides) as well as strain and residual stress promotes brittle material removal which wasmore evident in cryogenic and as-sprayed samples during dry test and at higher loads in wet conditions.