Výsledky vyhledávání - "Keisuke Omuro"

High Nitrogen Steels. Preparation of Amorphous High Nitrogen Iron Alloys with Ternary Additions by Mechanical Alloying

Autor: Keisuke Omuro, Harumatsu Miura, Hidenori Ogawa

Publikováno v: ISIJ International. 36:951-957

In order to prepare amorphous high nitrogen iron alloys, mechanical alloying (MA) of elemental powder mixtures with Fe-9.85mass%N alloy powder of Fe(100-y)-xAyNx(at%) (A=Mn, Cr, Mo, W, V, Nb, Ta, Co or Ni; x=0-20; y=0-25) was performed in an argon at

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::328f6b3d9427de98ec0406fdeb408100
https://doi.org/10.2355/isijinternational.36.951

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Effect of the Concentration of Carbon or Additives on Amorphization of Fe–C Materials by Mechanical Alloying

Autor: Harumatsu Miura, Hidenori Ogawa, Keisuke Omuro

Publikováno v: Materials Transactions, JIM. 36:263-268

Mechanical alloying (MA) of elemental powder mixtures of F (100-y)-x A y C x (at.%) (A=V, Nb, Cr, Mo, Mn, Co or Ni) with x = 0-30 and y = 0-50 was preformed in an argon atmosphere at ambient temperature using a planetary ball mill. In the MA processi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a5a21c0079b3f6258ee5649c524a58fd
https://doi.org/10.2320/matertrans1989.36.263

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Effect of Prealloying of Metalloid Components on Amorphization of Ni–Si–B Powders by Mechanical Alloying

Autor: Harumatsu Miura, Hidenori Ogawa, Keisuke Omuro

Publikováno v: Materials Transactions, JIM. 36:258-262

From experimental results for preparation of the Ni 75 Si 8 B 17 alloy by mechanical alloying (MA) of different starting materials, using a high energy ball mill, including prealloyed materials such as Ni-B and Ni-Si alloys, it was shown that preallo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0909633c38b8a71d7a5a6b57778346a3
https://doi.org/10.2320/matertrans1989.36.258

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Temperature Dependence of Deformation Process of Metal-Metalloid Type Amorphous Alloy Powders during Warm Consolidation

Autor: Keisuke Omuro, Harumatsu Miura

Publikováno v: Materials Transactions, JIM. 36:972-976

Amorphous powders of the seven alloys based on Fe, Co, Ni or Fe-Ni metals were consolidated by uniaxial warm die pressing into disk samples at different temperatures T below the crystallization temperature T x under compaction pressures σ of 0.78-1.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::35c7f1c4aa6c54ac7a0940315df4277e
https://doi.org/10.2320/matertrans1989.36.972

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Amorphization in iron-carbon systems with transition metals by mechanical alloying

Autor: Hidenori Ogawa, Keisuke Omuro, Harumatsu Miura

Publikováno v: Materials Science and Engineering: A. :1281-1284

Mechanical alloying (MA) of elemental powder mixtures of Fe 83− x M x C 17 (M ≡ Cr, Mo or Co) with x = 0–35 was performed using a planetary ball mill, to examine effect of the ternary additions M on amorphization of FeC materials by MA. In t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::37e894f33dffbbd2b9f981ba9885147d
https://doi.org/10.1016/0921-5093(94)90847-8

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Preparation of iron-nickel based metal-metalloid amorphous powders by mechanical alloying

Autor: Keisuke Omuro, Harumatsu Miura, Shigeteru Isa

Publikováno v: Journal of Non-Crystalline Solids. :741-744

Powders of crystalline, elemental iron and nickel metals and metal-metalloid systems such as FeB, FeP, and FeSi alloys were mechanically alloyed to obtain the alloys of compositions Fe40Ni40 P14B6 and Fe39Ni39Si10B12 (at. pct) by high energy

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e1cc686482a2f298f398ee7ee079872b
https://doi.org/10.1016/0022-3093(90)90635-y

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Effect of Additive Elements on Amorphization in M75C25 (M=Fe, Co or Ni) and Fe80N20 Systems by Mechanical Alloying

Autor: Keisuke Omuro

Publikováno v: Japanese Journal of Applied Physics. 36:2236

Mechanical alloying (MA) of elemental powder mixtures of the M75- x A x C25 system (at.%) (M=Fe, Co or Ni; A=Ti, V, Cr, Mn, Fe, Co or Ni) with x=0 and 20 is performed using a planetary ball mill. In the MA processing, the A additives with a negative

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2128ca3877b288547f432ba6da665bfe
https://doi.org/10.1143/jjap.36.2236

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Synthesis of Amorphous Powders of Ni-Si and Co-Si Alloys by Mechanical Alloying

Autor: Harumatsu Miura, Keisuke Omuro

Publikováno v: Japanese Journal of Applied Physics. 30:L851

Amorphous powders of the Ni-Si and Co-Si alloys are synthesized by mechanical alloying (MA) from crystalline elemental powders using a high energy ball mill. The alloying and amorphization process is examined by X-ray diffraction, differential scanni

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9a93e952286382fb1e5be20587f5f676
https://doi.org/10.1143/jjap.30.l851

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Preparation of Fe-Ni-Based Metal-Metalloid Amorphous Alloys by Mechanical Alloying and Mechanical Grinding Methods

Autor: Harumatsu Miura, Keisuke Omuro, Shigeteru Isa

Publikováno v: Japanese Journal of Applied Physics. 29:L339

Using a high energy ball mill, alloys of Fe40Ni40P14B6 and Fe40Ni40B20 were synthesized from crystalline, elemental iron and nickel metals and iron-metalloid alloys such as Fe-B and Fe-P by mechanical alloying (MA). Powders of the Fe40Ni40P14B6 alloy

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ac6e77c08aeed08dcb93448bda5f2be8
https://doi.org/10.1143/jjap.29.l339

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