Autor: Park, Young - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Effects of Adding Niobium and Vanadium to Fe-Based Oxide Dispersion Strengthened Alloy
Autorzy:: Park, Chun Woong
Choi, Won June
Byun, Jong Min
Kim, Young Do
Powiązania:: https://bibliotekanauki.pl/articles/353024.pdf
Data publikacji:: 2020
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: Fe-based ODS
vanadium
niobium
superalloy
hardness
Opis:: In this study, the effects of adding niobium and vanadium to Fe-based oxide dispersion strengthened alloys are confirmed. The composition of alloys are Fe-20Cr-1Al-0.5Ti-0.5Y₂ O₃ and Fe-20Cr-1Al-0.5Ti-0.3V-0.2Nb-0.5Y₂ O₃. The alloy powders are manufactured by using a planetary mill, and these powders are molded by using a magnetic pulsed compaction. Thereafter, the powders are sintered in a tube furnace to obtain sintered specimens. The added elements exist in the form of a solid solution in the Fe matrix and suppress the grain growth. These results are confirmed via X-ray diffraction and scanning electron microscopy analyses of the phase and microstructure of alloys. In addition, it was confirmed that the addition of elements, improved the hardness property of Fe-based oxide dispersion strengthened alloys.
Źródło:: Archives of Metallurgy and Materials; 2020, 65, 4; 1265-1268
1733-3490
Pojawia się w:: Archives of Metallurgy and Materials
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Fabrication of Molybdenum Alloy with Distributed High-Entropy Alloy Via Pressureless Sintering
Autorzy:: Choi, Won June
Park, Cheon Woong
Byun, Jong Min
Kim, Young Do
Powiązania:: https://bibliotekanauki.pl/articles/353990.pdf
Data publikacji:: 2020
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: molybdenum alloy
high-entropy alloys
core-shell powder
Opis:: In this study, a molybdenum alloy with dispersed high-entropy particles was fabricated using the powder metallurgy method. The high-entropy powder, composed of Nb, Ta, V, W, and Zr elements with a same atomic fraction, was prepared via high-energy ball milling. Using this powder, an ideal core-shell powder, composed of high-entropy powder as core and Mo powder as shell, was synthesized via the milling and reduction processes. These processes enabled the realization of an ideal microstructure with the high-entropy phase uniformly dispersed in the Mo matrix. The sintered body was successfully fabricated via uniaxial compaction followed by pressureless sintering. The sintered body was analyzed by X-ray diffraction and scanning electron microscope, and the high-entropy phase is uniformly dispersed in the Mo matrix.
Źródło:: Archives of Metallurgy and Materials; 2020, 65, 4; 1269-1272
1733-3490
Pojawia się w:: Archives of Metallurgy and Materials
Dostawca treści:: Biblioteka Nauki

Artykuł

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