Spray Deposition of Mechanically Alloyed F/M ODS Steel Powder

• Autorzy: Kang Suk Hoon , Rhee Chang-Kyu , Noh Sanghoon , Kim Tae Kyu

Identyfikatory

DOI

10.24425/amm.2019.127586

• Języki publikacji: EN

Abstrakty

EN

Thermal/cold spray deposition were used for additive manufacture of oxide dispersion strengthened (ODS) steel layers. Mechanically alloyed F/M ODS steel powders (Fe(bal.)-10Cr-1Mo-0.25Ti-0.35Y2O3 in wt.%) were sprayed by a high velocity oxygen fuel (HVOF) and cold spray methods. HVOF, as a thermal method, was used for manufacturing a 1 mm-thick ODS steel layer with a ~95% density. The source to objective distance (SOD) and feeding rate were controlled to achieve sound manufacturing. Y₂ Ti₂ O₇ nano-particles were preserved in the HVOF sprayed layer; however, unexpected Cr₂ O₃ phases were frequently observed at the boundary area of the powders. A cold spray was used for manufacturing the Cr₂ O₃ -free layer and showed great feasibility. The density and yield of the cold spray were roughly 80% and 45%, respectively. The softening of ODS powders before the cold spray was conducted using a tube furnace of up to 1200°C. Microstructural characteristics of the cold sprayed layer were investigated by electron back-scattered diffraction (EBSD), the uniformity of deformation amount inside powders was observed.

Słowa kluczowe

EN

additive manufacture; mechanically alloyed ODS powder; HVOF; cold spray

• 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: 2019
• Tom: Vol. 64, iss. 2
• Strony: 607--611
• Opis fizyczny: Bibliogr. 12 poz., fot., rys.

Twórcy

autor

Kang Suk Hoon

• Korea Atomic Energy Research Institute, Materials Research Division, Daedeok-Daero 989-111, Yuseong, Daejeon, 34057, Korea

autor

Rhee Chang-Kyu

• Korea Atomic Energy Research Institute, Materials Research Division, Daedeok-Daero 989-111, Yuseong, Daejeon, 34057, Korea

autor

Noh Sanghoon

• Korea Atomic Energy Research Institute, Materials Research Division, Daedeok-Daero 989-111, Yuseong, Daejeon, 34057, Korea

autor

Kim Tae Kyu

• Korea Atomic Energy Research Institute, Materials Research Division, Daedeok-Daero 989-111, Yuseong, Daejeon, 34057, Korea

Bibliografia

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Uwagi

EN

1. This work was supported by the Korea Institute of Energy Technology Evaluation and Planning(KETEP) and the Ministry of Trade, Industry & Energy(MOTIE) of the Republic of Korea (No. 20171510102030)

PL

2. Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).