Abstract
An experimental approach was designed to understand dendrite fragmentation of atomized droplets deposition in spray materials, and to study the relationship between dendrite fragmentation behavior and subsequent microstructural evolution. A Gleeble 3500 physical simulator was used to create controlled thermal shock conditions in solid-liquid mixtures of Superalloy GH4169 and High Speed Steel (HSS) T15 atomised powders, which simulated the environment of droplet deposition during the spray forming of large diameter billets at Beijing Institute of Aeronautical Materials (BIAM). The experiment results support that the rapid remelting and thermal shock play an important role in the development of the fine equiaxed microstructure in spray forming high-alloy metals.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Atkinson H.V., Modelling the semisolid processing of metallic alloys, Progress in Materials Science, 2005, 50(3): 341.
Grant P.S., Solidification in spray forming, Metallurgical and Materials Transactions A, 2007, 38(7): 1520.
Udo Fritsching, spray simulation — Modelling and numerical simulation of spray forming metals, Universitat Bremen, Cambridge University press, 2003.
Dirk Bergmann, and Udo Fritsching, Sequential thermal modelling of the spray-forming process, International Journal of Thermal Sciences, 2004, 43(3): 403.
Sun Jianfei, Cao Fuyang, Shen Jun, and Li Qingchun, Freezing behavior of atomizing droplets during spray forming, Special Casting & Nonferrous Alloys, 2002, (3): 1.
Annavarapu S, Doherty R D, Apelian D, et al, Research on spray forming, Proceedings of the 1st International Conference on Spray forming, Osprey metals. Red Jacket works. Death, U.K. paper 31, 1990.
Zhang Guoqing, Li Zhou, Zhang Yong, Mi Jiawei, Grant Patric, Modeling the deposition dynamics of a twin-atomizer spray forming system, Metallurgical and Materials Transactions. B, 2009, 41(2): 303.
Zhang Yong, Zhang Guoqing, Li Zhou, et al. Analysis of Twin-nozzle-scanning spray forming process and spray formed high speed steel (HSS), Journal of Iron and Steel Research International, 2007, 14(Sup1): 7.
Asta M., Beckermenn C., Karma A., Kurz W., Napolitano R., et al, Solitifaction microstructures and solid-state parallels: Recent developments, future directios, Acta Materialia, 2009, 57(4): 941.
Hitchcock M., Wang Y., and Fan Z., Secondary solidifaction behaviour of the Al-Si-Mg alloy prepared by the rheo-diecasting process, Acta Materialia, 2007, 55(5): 1589.
Ananiev S., Nikrityuk P., and Eckert K., Dendrite fragmentation by catastrophic elastic remelting, Acta Materialia, 2009, 57(3): 657.
Flemings M.C., Solidification Processing, New York: McGraw-Hill Book Company, 1974.
Boettinger W.J., Microstructure variations in rapidly solidified alloy, Materials Science and Engineering, 1988, 98: 123.
Kurz W., Giovanola B., and Trivedi R., Theory of microstructural development during rapid solidification, Acta Materialia, 1986, 34(5): 823.
Zhang Yong, Guo Zhipeng, Zhang Guoqing, Mi Jiawei, and Patric Grant, Modelling and experiments concerning dendrite Re-melting and its role in microstructural evolution in spray formed Ni superalloys, PRICM-7, 2010, Australia Cairns.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Zhang, Y., Liu, N., Li, Z. et al. Gleeble experiments concerning dendrite re-melting and its role in microstructural evolution in spray formed high-alloy metals. Rare Metals 30 (Suppl 1), 401–404 (2011). https://doi.org/10.1007/s12598-011-0312-7
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s12598-011-0312-7