High ductility and strength by internal interface recrystallization of cold sprayed zinc and its fracture behavior
Research output: Contributions to collected editions/works › Article in conference proceedings › Research › peer-review
Standard
International Thermal Spray Conference and Exposition: Next-Generation Thermal Spraying for Future Surfaces, ITSC 2023 - Conference Proceedings. ed. / Fardad Azarmi; X. Chen; J. Cizek; H. Salimi Jazi; H. Koivuluoto; Y. Lau; R. Ortiz-Fernandez; Ozan C. Ozdemir; F. Toma; J. Veilleux; H. Che. ASM International, 2023. p. 250-257 (International Thermal Spray Conference and Exposition: Next-Generation Thermal Spraying for Future Surfaces, ITSC 2023 - Conference Proceedings).
Research output: Contributions to collected editions/works › Article in conference proceedings › Research › peer-review
Harvard
APA
Vancouver
Bibtex
}
RIS
TY - CHAP
T1 - High ductility and strength by internal interface recrystallization of cold sprayed zinc and its fracture behavior
AU - Huang, Chunjie
AU - Wiehler, Levke
AU - List, Alexander
AU - Elsenberg, Andreas
AU - Gärtner, Frank
AU - Klassen, Thomas
AU - Fu, Banglong
AU - Chen, Ting
AU - Klusemann, Benjamin
AU - Zhang, Zhengmao
AU - Li, Wenya
N1 - Publisher Copyright: Copyright © 2023 ASM International® All rights reserved.
PY - 2023
Y1 - 2023
N2 - Tailoring strength and ductility in additive manufacturing or repair is key to successful applications. Therefore, cold spraying must be tuned for maximum amounts of well-bonded internal interfaces as well as sufficient softening of the highly work-hardened deposit. Zinc (Zn) with its low melting temperature is an ideal model system to study phenomena associated with high strain rate deformation and local temperature distributions, both, in single impacts and thicker deposits. Bonding and recrystallization can be facilitated by covering selected wide parameter regimes in cold spraying. Despite the low temperatures, Zn single splats already show recrystallization at internal interfaces, the respective amounts then scaling with increasing process gas temperatures. At higher process temperatures, deposits are almost fully recrystallized. The recrystallization seems to improve bonding at internal and at deposit-substrate interfaces. Under optimum conditions, an ultimate deposit cohesive strength of up to 135 MPa and an elongation to failure of 18.4% are reached, comparable to that of laser-manufactured or bulk Zn parts. This demonstrates a well-tuned interplay between high amounts of bonded interfaces and softening by recrystallization that allows for deriving bulk-like performance of cold sprayed material without additional post-treatments. Correlations between microstructures, mechanical properties, and fracture mechanisms supply information about prerequisites needed for reaching high ductility as obtained in damage and failure modes of deposits and bulk materials in global and local approaches.
AB - Tailoring strength and ductility in additive manufacturing or repair is key to successful applications. Therefore, cold spraying must be tuned for maximum amounts of well-bonded internal interfaces as well as sufficient softening of the highly work-hardened deposit. Zinc (Zn) with its low melting temperature is an ideal model system to study phenomena associated with high strain rate deformation and local temperature distributions, both, in single impacts and thicker deposits. Bonding and recrystallization can be facilitated by covering selected wide parameter regimes in cold spraying. Despite the low temperatures, Zn single splats already show recrystallization at internal interfaces, the respective amounts then scaling with increasing process gas temperatures. At higher process temperatures, deposits are almost fully recrystallized. The recrystallization seems to improve bonding at internal and at deposit-substrate interfaces. Under optimum conditions, an ultimate deposit cohesive strength of up to 135 MPa and an elongation to failure of 18.4% are reached, comparable to that of laser-manufactured or bulk Zn parts. This demonstrates a well-tuned interplay between high amounts of bonded interfaces and softening by recrystallization that allows for deriving bulk-like performance of cold sprayed material without additional post-treatments. Correlations between microstructures, mechanical properties, and fracture mechanisms supply information about prerequisites needed for reaching high ductility as obtained in damage and failure modes of deposits and bulk materials in global and local approaches.
UR - http://www.scopus.com/inward/record.url?scp=105021966031&partnerID=8YFLogxK
U2 - 10.31399/asm.cp.itsc2023p0250
DO - 10.31399/asm.cp.itsc2023p0250
M3 - Article in conference proceedings
AN - SCOPUS:105021966031
T3 - International Thermal Spray Conference and Exposition: Next-Generation Thermal Spraying for Future Surfaces, ITSC 2023 - Conference Proceedings
SP - 250
EP - 257
BT - International Thermal Spray Conference and Exposition
A2 - Azarmi, Fardad
A2 - Chen, X.
A2 - Cizek, J.
A2 - Jazi, H. Salimi
A2 - Koivuluoto, H.
A2 - Lau, Y.
A2 - Ortiz-Fernandez, R.
A2 - Ozdemir, Ozan C.
A2 - Toma, F.
A2 - Veilleux, J.
A2 - Che, H.
PB - ASM International
T2 - 2023 International Thermal Spray Conference and Exposition, ITSC 2023
Y2 - 22 May 2023 through 25 May 2023
ER -