CiNii Articles - Ultra Fine Grained Steel

1

Effect of Solute Carbon Content on Microstructures of Cold-rolled Ferritic Steel-The Same Area Analyses by Using TEM and SEM-EBSD- [in Japanese]

Nakanishi Sae , Morikawa Tatsuya , Higashida Kenji , Murakami Hidekuni , Kimura Ken , Ushioda Kohsaku

… Deformation microstructures developed in cold-rolled ultra low carbon (ULC) steel as well as those in low carbon (LC) steel have been investigated by using TEM and SEM-EBSD techniques. … In grains of ND//‹111›, fine microbands and/or shear bands (SBs) were developed while in RD//‹011› …

Tetsu-to-Hagane 98, 253-261, 2012

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2

Tensile Behavior of a TRIP-aided Ultra-fine Grained Steel Studied by Neutron Diffraction

ASOO Kazuya , TOMOTA Yo , HARJO Stefanus , OKITSU Yoshitaka

… Tensile behavior of a nano-TRIP steel with 0.4 μm grain size showing tensile strength of 1326 MPa and total elongation of 23% was studied under in situ neutron diffraction. … In spite of ultrafine grained structure, this steel realized a high work-hardening leading to a sufficient amount of uniform elongation. … In the beginning of tensile deformation, Lüders band appeared similarly to many ultrafine grained materials. …

ISIJ International 51(1), 145-150, 2011-01-15

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3

Influence of annealing on strength of ultrafine grained low carbon steels by ECAP

Akita T. , Gotoh Masahide , Dobatkin Sergey V. , Kitagawa Kazuo , Hirose Yukio

… In the present study, ultra fine-grained low carbon steel samples were processed by equal channel angular pressing (ECAP). …

Materials Science Forum 638-642, 1899-1904, 2010-00-00

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4

Microstructural Changes by Annealing and Mechanical Properties of Ultra Fine-Grained Low Carbon Steels Processed by ECAP [in Japanese]

AKITA Takeo , GOTOH Masahide , KITAGAWA Kazuo , SHOZU Masayuki , HIROSE Yukio

… Microstructures and mechanical properties of ultra fine-grained low carbon steels fabricated by equal channel angular pressing (ECAP) were investigated. … The initial grain size of ∼10μm in the ferrite-pearlite steel was refined to ∼0.2μm by 4 passes of ECAP. …

Journal of the Society of Materials Science, Japan 59(7), 513-520, 2010

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5

S0304-1-5 Strain measurement near fatigue crack in ultra-fine grained steel by polychromatic synchrotron radiation [in Japanese]

AKINIWA Yoshiaki , KIMURA Hidehiko , SHIBANO Jyunichi , KIRIYAMA Koji , SHOBU Takahisa

For engineering components with cracks, it is very important to evaluate the reliability for fracture. The X-ray diffraction method is now widely used to measure non-destructively the loading and resi …

年次大会講演論文集 : JSME annual meeting 2009(1), 215-216, 2009-09-12

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6

Influence of Lubricant Factors on Coefficient of Friction and Clarification of Lubrication Mechanism in Hot Rolling

AZUSHIMA Akira , XUE WeiDong , YOSHIDA Yoshiaki

… In order to reduce the rolling force and the roll wear, the lubricants have been used in hot sheet rolling of steel, but the lubrication behavior at the interface between roll and workpiece in hot steel rolling have never been well understood. … On the other hand, hot rolling process with high reduction in thickness have been developed to produce the ultra-fine grained steels. …

ISIJ International 49(6), 868-873, 2009-06-15

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7

Creep Damage Behavior of Mod.9Cr-1Mo Steel Welded Joint [in Japanese]

HONGO Hiromichi , TABUCHI Masaaki , LI Yongkui , TAKAHASHI Yukio

… Mod.9Cr-1Mo steel has been used for boiler components in ultra-supercritical (USC) thermal power plants. … The creep strength of welded joint of this steel decreases due to Type-IV creep cracking formed in heat affected zone (HAZ) at high temperatures. … Creep damages concentrate mostly at a quarter depths of the plate thickness in the fine-grained HAZ. …

Journal of the Society of Materials Science, Japan 58(2), 101-107, 2009

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8

Integrated Production Technologies for Ultra-fine Grained Steel Sheets

KIUCHI Manabu

… A national project was conducted by NEDO and executed by a consortium organized by JRCM with aims to develop integrated production technologies necessary for manufacturing ultra-fine grained steel (UFGS) sheets. …

ISIJ International 48(8), 1133-1141, 2008-08-15

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9

Tensile Behavior of Fine-grained Steels

TOMOTA Yo , NARUI Akinori , TSUCHIDA Noriyuki

… Hence the tensile properties obtained at a high speed deformation like 103/s is excellent in fine-grained multi-phase steels. … As an example of ultrafine-microstructure with 20–30 nm in size, the tensile behavior of severely drawn pearlite steel wires with tensile strength larger than 4 GPa is investigated. … In spite of such ultra-high strength, the wire deforms plastically by dislocation motion resulting in dimple fracture. …

ISIJ International 48(8), 1107-1113, 2008-08-15

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10

Development of ultra-fine grained stainless steel by nitrogen absorption treatment for gaskets [in Japanese]

西山忠夫 , 桂井隆 , 安達和彦

Honda R&D technical review 20(1), 105-110, 2008-04-00
11

Fracture Toughness Enhanced by Grain Boundary Shielding in Submicron-Grained Low Carbon Steel

TANAKA Masaki , FUJIMOTO Naoki , HIGASHIDA Kenji

Materials Transactions 49(1), 58-63, 2008-01-01

References (33) Cited by (1)
12

Influence of Lubricant Factors on Coefficient of Friction and Clarification of Lubrication Mechanism in Hot Rolling(Forming Processing and Thermomechanical Treatment) [in Japanese]

AZUSHIMA Akira , XUE Wei Dong , YOSHIDA Yoshiaki

… In order to reduce the rolling force and the roll wear, the lubricants have been used in hot sheet rolling of steel, but the lubrication behavior at the interface between roll and workpiece in hot steel rolling have never been well understood. … On the other hand, hot rolling process with high reduction in thickness have been developed to produce the ultra-fine grained steels. …

Tetsu- to- Hagane 93(11), 681-686, 2007-11-01

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13

Friction stir welding of ultra fine grained steel [in Japanese]

平野聡 , 朴勝煥 , 岡本和孝

Welding technology 55(11), 64-68, 2007-11-00
14

348 Characteristics at HAZ bond of Al-Si Ultra-Fine Grained Steel [in Japanese]

Matsuoka Noriyuki , Nakata Takeshi , Imai Hachirou , Kasugai Takayoshi , Ito Reisuke , Nakamura Terumi , Hiraoka Kazuo

Pre-Prints of the National Meeting of JWS (81), 242-243, 2007-09-01

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15

Tribological Condition and Evaluation for Creation Process of Ultra-fine Grained Steels(Forming Processing and Thermomechanical Treatment) [in Japanese]

AZUSHIMA Akira , XUE WeiDong , YOSHIDA Yoshiaki

… Recently, hot rolling with a severely high redution was developed to make the ultra fine grained steels. …

Tetsu- to- Hagane 93(5), 367-372, 2007-05-01

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16

402 Microstructures and Mechanical Properties of Friction Stir Welded Ultra Fine Grained Steel (Part3) by Environment-Conscious Ultra Fine Grained Steel Consortium of JRCM [in Japanese]

Park Seung Hwan C. , Hirano Satoshi

Pre-Prints of the National Meeting of JWS (80), 164-165, 2007-03-19

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17

121 Weld abilities of Ultra fine-grained steel sheets for auto bodies By Environment-Conscious Ultra fine-Grained Steel Consortium of JRCM [in Japanese]

NISHIBATA Hitomi , UCHIHARA Masato , SASAKI Tamotsu , FUKUSHIMA Suguhiro , MIYATA Kaori , WAKITA Masayuki

Pre-Prints of the National Meeting of JWS (80), 44-45, 2007-03-19

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18

Springback-free Isothermal Forming of High-strength Steel Sheets and Aluminum Alloy Sheets under Warm and Hot Forming Conditions

YANAGIMOTO Jun , OYAMADA Keigo

… The springback-free forming of high-strength steel sheets is realized in the warm forming temperature range. …

ISIJ International 46(9), 1324-1328, 2006-09-15

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19

Characteristics of Heat-Affected Zone of Ultra-Fine Grained Steel [in Japanese]

MATSUOKA Nariyuki , NAKATA Takeshi , ITO Reisuke , NAKAMURA Terumi , HIRAOKA Kazuo

溶接学会全国大会講演概要 = PREPRINTS OF THE NATIONAL MEETING OF J.W.S. 79, 24-25, 2006-09-01

References (3)
20

Softening Characteristic and Strength of Austenitic Stainless Steel Created by Warm Grooved Rolling [in Japanese]

HIROTA Noriaki , INOUE Tadanobu , KIMURA Yuji , AZUMA Tsukasa , NAGAI Kotobu

熱処理 = Journal of The Japan Society for Heat Treatment 46(4), 214-220, 2006-08-28

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