Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Yusaku Tomio"'
Publikováno v:
Metallurgical and Materials Transactions A. 48:5761-5765
The effect of carbon content on the density of variant-pair boundaries was investigated in 9Ni steel using an electron backscatter diffraction patterns method. The changes in the density of variant-pair boundaries were correlated with the nondestruct
Publikováno v:
Metallurgical and Materials Transactions A. 47:4970-4978
Precipitation of fine alloy nitrides near the specimen surface results in significant surface hardening in nitriding of alloyed steels. In this study, a simulation model of alloy nitride precipitation during nitriding is developed for Fe-M binary sys
Publikováno v:
Metallurgical and Materials Transactions A. 46:5489-5493
Cleavage-crack propagation behavior was investigated in the simulated coarse-grained heat-affected zone (CGHAZ) of bainitic steel using electron backscattering diffraction (EBSD) pattern analysis when a low heat input welding was simulated. From view
Autor:
Yusaku Tomio, Yutaro Shintome, Hidenori Terasaki, Mitsuru Ohata, Koji Moriguchi, Yu-ichi Komizo
Publikováno v:
Metallurgical and Materials Transactions A. 46:2035-2039
Global effect of Bain-zone boundaries and the local effect of close-packed plane (CP) boundaries on the path of secondary cleavage cracks (observed on a fractured V-notch Charpy specimen) were visualized and discussed in simulated coarse-grained HAZ
Autor:
Koji Moriguchi, Yutaro Shintome, Yusaku Tomio, Atsushi Takada, Yu-ichi Komizo, Hidenori Terasaki
Publikováno v:
Metallurgical and Materials Transactions A. 45:3554-3559
The variant grouping behavior of a simulated heat-affected zone in low-carbon steel was tracked in situ and analyzed by laser scanning confocal microscopy and electron backscatter diffraction. By visualizing the microstructural changes and crystallog
Autor:
Goro Miyamoto, Shigeki Kitsuya, Kazuhiro Hono, Tadashi Furuhara, Keilchiro Oh-ishi, Yusaku Tomio
Publikováno v:
Metallurgical and Materials Transactions A. 45:239-249
Change in surface hardness and nitrides precipitated in Fe-0.6C binary and Fe-0.6 mass pct C-1 mass pct M (M = Al, Cr, Mn, Si) ternary martensitic alloys during plasma nitriding were investigated. Surface hardness was hardly increased in the Fe-0.6C
Publikováno v:
Day 2 Wed, March 23, 2016.
High chromium martensitic stainless steels (MSS), for example 13Cr steel, are widely used as OCTG tubing material for corrosive oil and gas wells. These materials are manufactured by quenching and tempering processes. Recently, the opportunities when
Publikováno v:
Materials Science and Technology. 27:742-746
Nanosized alloy nitrides or alloying element (M)–Nitrogen(N) cluster formed in plasma nitriding of Fe–M binary alloys were investigated by means of high resolution TEM. Specimen surface of the Fe–Cr alloys was hardened by the formation of disk
Publikováno v:
MATERIALS TRANSACTIONS. 50:2731-2736
A Ti-10V-2Fe-3Al alloy with a small amount of nitrogen shows superelasticity. Controlling of the cooling rate fromsolution treatment temperature improves superelasticity in both Ti-10V-2Fe-3Al and Ti-10V-2Fe3-Al-0.2N alloys. In this study, a wider ra
Publikováno v:
ISIJ International. 51:1566-1568