@article{oai:iwate-u.repo.nii.ac.jp:00015708,
 author = {桑嶋, 孝幸 and 野呂, 和貴 and 脇, 裕之},
 issue = {4},
 journal = {日本溶射学会誌　溶射, journal of Japan Thermal Spraying Society},
 month = {},
 note = {Mechanical properties of heat-affected cold spray coatings are important. However, the mechanism of multi-scale property change by heat treatment is not well-known. In this study, cold sprayed nickel specimens heat-treated in several conditions were prepared to investigate the influence of heat treatment on the multi-scale properties. Young's modulus and modulus of rigidity were measured by a free resonance method. The microstructure was observed by electron backscatter diffraction (EBSD). The EBSD analysis indicated that the crystal grain size of an as-sprayed coating was finer compared with feedstock powder. The crystal grains grew with increasing heat treatment temperature above 673K. The kernel average misorientation map showed that the strain in the coating disappeared drastically at 673K, and then the hardness decreased. On the other hand, the coating porosity increased with increasing heat treatment temperature above 873K, and then the elastic moduli degreased. It was concluded that microstructure of a nickel coating via cold spray changed with two different scales by heat treatment. First, microscopic strain in the coating was released, and then the macroscopic porosity increased due to diffusion.},
 pages = {165--1171},
 title = {コールドスプレーNi皮膜のマルチスケール機械特性に及ぼす熱処理の影響},
 volume = {57},
 year = {2020}
}