Microstructure Evolution of Ni-Based ODS Superalloy Powders During Horizontal Rotary Ball Milling

• Autorzy: Lee H.-E. , Kim Y. S. , Park J. K. , Oh S.-T.

Identyfikatory

DOI

10.1515/amm-2017-0187

• Języki publikacji: EN

Abstrakty

EN

Microstructure evolution of Ni-based oxide dispersion-strengthened alloy powders with milling time is investigated. The elemental powders having a nominal composition of Ni-15Cr-4.5Al-4W-2.5Ti-2Mo-2Ta-0.15Zr-1.1Y₂O₃ in wt % were ball-milled by using horizontal rotary ball milling with the change of milling velocity. Microstructure observation revealed that large aggregates were formed in the early stages of ball milling, and further milling to 5 h decreased particle size. The average crystalline size, estimated by the peak broadening of XRD, decreased from 28 nm to 15 nm with increasing milling time from 1 h to 5 h. SEM and EPMA analysis showed that the main elements of Ni and Cr were homogeneously distributed inside the powders after ball milling of 5 h.

Słowa kluczowe

EN

high energy ball milling; Ni-base ODS superalloy; particle and crystalline size; microstructure

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2017
• Tom: Vol. 62, iss. 2B
• Strony: 1253--1255
• Opis fizyczny: Bibliogr. 12 poz., rys., tab.

Twórcy

autor

Lee H.-E.

• Department of Materials Science and Engineering, Seoul National University of Science and Technology, Seoul 01811, Korea (Republic of)

autor

Kim Y. S.

• Department of Materials Science and Engineering, Seoul National University of Science and Technology, Seoul 01811, Korea (Republic of)

autor

Park J. K.

• Korea Sintered Metal Co. Ltd., Daegu 42983, Korea (Republic of)

autor

Oh S.-T.

• Department of Materials Science and Engineering, Seoul National University of Science and Technology, Seoul 01811, Korea (Republic of)

Bibliografia

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Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017)