Characterization on White Etching Layer Formed During Ceramic Milling of Inconel 718

A. Kruk; A. M. Wusatowska‑Sarnek; M. Ziętara; K. Jemielniak; Z. Siemiątkowski; A. Czyrska‑Filemonowicz

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자료유형: 학술저널

저자정보: A. Kruk (AGH University of Science and Technology) A. M. Wusatowska‑Sarnek (Pratt & Whitney) M. Ziętara (AGH University of Science and Technology) K. Jemielniak (Warsaw University of Technology) Z. Siemiątkowski (Kazimierz Pulaski University of Technology and Humanities in Radom) A. Czyrska‑Filemonowicz (AGH University of Science and Technology)

저널정보: 대한금속·재료학회 Metals and Materials International Metals and Materials International Vol.24 No.5

발행연도: 2018.1

수록면: 1,036 - 1,045 (10page)

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A comprehensive characterization of the near surface formed during the interrupted high-speed dry ceramic milling of IN718was performed using light imaging, SEM/EDX, TEM and nano-hardness methods. It was found out that even an initial cutby a fresh tool creates a sub-surface alteration roughly 20 μm deep. The depth of altered sub-surface progressively changedto a roughly 40 μm when the tool reached an approximately half of its life, and almost 60 μm at the tool’s end of the life. Inthe last two cases, the visible WEL (utilizing a light microscope) of the thickness roughly 6 and 15 μm was created, respectively. The outermost layer of the deformed subsurface was found to be for all three cases approximately 1.5 μm thick andcomposed of dynamically recrystallized γ phase grains with the average diameter of approximately 150 nm. This layer wasfree of δ phase and γ′ or γ″ precipitates. It was followed by a plastically deformed zone.

참고문헌 (22)

참고문헌 신청

D. Dudzinski / 2004 / A review of developments towards dry and high speed machining of Inconel 718 alloy / Int. J. Mach. Tools Manuf. 44:439~456

A.R.C. Sharman / 2008 / Tool life and surfaceintegrity aspects when drilling and hole making in Inconel718 / J. Mater. Proc. Technol. 200:424~432

R.S. Pawade / 2007 / An investigation of cutting forces and surface damage in high-speed turning of Inconel 718 / J. Mater. Proc. Technol. 192-193:139~146

K. Jemielniak / 2009 / Rough turning of Inconel 718 / Adv. Manuf. Sci. Technol. 33(3):5~15

P.K. Mehrotra / 1998 / Applications of ceramic cutting tools / Key Eng. Mater. 138-140:1~24

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