TY - GEN
T1 - Anisotropic response of cold sprayed copper deposits
AU - Yang, Rang
AU - Li, Wenya
N1 - Publisher Copyright:
© 2018 ASM International® All rights reserved.
PY - 2018
Y1 - 2018
N2 - Cold spray (CS) is characterized as a solid-state process of high deposition efficiency for metallic coatings as well as additive manufacturing of metals. However, due to high velocity impact and extensive deformation of particles during CS, the as-received coatings or deposits may present anisotropic characteristics which could influence the performance of deposits. Hence this study aims to investigate the anisotropic behaviors of CSed copper deposits in a systematic way. The microstructure and micromechanical properties of the deposits both in the cross-section (v-face) and in the parallel plane to the surface (p-face) were characterized. Tensile tests were performed at various loading angles with respect to the nozzle moving direction in the p-face. It is revealed that there exist strong microstructural and mechanical anisotropics in CSed deposits. Different interparticle interaction results in more severe particle impact deformation in v-face than p-face, with larger elastic modulus and microhardness values. The tensile tests show an unexpected anisotropy in both ultimate tensile strength and elongation, with the highest performance occurring at the angle of 20°. The in-plane tensile anisotropy could be attributed to the parallel multiple passes. Therefore, a novel weave-spraying method was proposed, which can greatly reduce the tensile anisotropy of CSed deposits.
AB - Cold spray (CS) is characterized as a solid-state process of high deposition efficiency for metallic coatings as well as additive manufacturing of metals. However, due to high velocity impact and extensive deformation of particles during CS, the as-received coatings or deposits may present anisotropic characteristics which could influence the performance of deposits. Hence this study aims to investigate the anisotropic behaviors of CSed copper deposits in a systematic way. The microstructure and micromechanical properties of the deposits both in the cross-section (v-face) and in the parallel plane to the surface (p-face) were characterized. Tensile tests were performed at various loading angles with respect to the nozzle moving direction in the p-face. It is revealed that there exist strong microstructural and mechanical anisotropics in CSed deposits. Different interparticle interaction results in more severe particle impact deformation in v-face than p-face, with larger elastic modulus and microhardness values. The tensile tests show an unexpected anisotropy in both ultimate tensile strength and elongation, with the highest performance occurring at the angle of 20°. The in-plane tensile anisotropy could be attributed to the parallel multiple passes. Therefore, a novel weave-spraying method was proposed, which can greatly reduce the tensile anisotropy of CSed deposits.
UR - http://www.scopus.com/inward/record.url?scp=85068922007&partnerID=8YFLogxK
M3 - 会议稿件
AN - SCOPUS:85068922007
T3 - Proceedings of the International Thermal Spray Conference
SP - 187
EP - 193
BT - ASM International - International Thermal Spray Conference, ITSC 2018
A2 - Azarmi, Fardad
A2 - Eden, Timothy
A2 - Li, Hua
A2 - Toma, Filofteia-Laura
A2 - Balani, Kantesh
A2 - Hussain, Tanvir
A2 - Shinoda, Kentaro
PB - ASM International
T2 - International Thermal Spray Conference, ITSC 2018
Y2 - 7 May 2018 through 10 May 2018
ER -