Search Results:　 1-20 of 74

  • 1

    Giga-cycle Fatigue Properties for Spheroidal Graphite Cast Iron  [in Japanese]

    TAKEUCHI Etsuo , FURUYA Yoshiyuki , LIU Zhimin , HANDA Takuo

    Journal of Japan Foundry Engineering Society 83(6), 327-333, 2011-06-25

    References (25)

  • 2

    The Role of Microfractography in Failure Analysis of Cold Forging Dies

    EBARA Ryuichiro , TAKEDA Keisuke , IWAMOTO Masahide , FUJIMOTO Hideaki , OGURA Atsushi , HAMAYA Shinichi

    … Microfractographic features in fracture surfaces for tensile, fatigue, impact, three point bending specimens of cold forging die steels with Rockwell C scale hardness number of 52 to 68 are presented. … The emphasis is placed upon the stretched zone formation ahead of the fatigue crack and the relation between the stretched zone width and fracture toughness. …

    Journal of the Society of Materials Science, Japan 60(11), 1009-1014, 2011

    J-STAGE CrossRef

  • 3

    Effect of Nitriding on Very High Cycle Fatigue Properties of Developed High Speed Steel

    HIRANO Takashi , SHIMATANI Yuji , SHIOZAWA Kazuaki , YOSHIMOTO Takashi , KOSHI Masao

    … Evaluation of fatigue properties for new high speed steel nitrided was performed through a cantilever-type rotating bending fatigue test in air at room temperature in very high cycle fatigue (VHCF) regime. … Fatigue strength was increased in the whole of applied stress amplitude levels by both nitridings. …

    TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A 77(775), 427-437, 2011

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  • 4

    Very High Cycle Fatigue Properties of High Speed Steel Developed by Basis on Internal Failure Mechanism  [in Japanese]

    SHIOZAWA Kazuaki , SHIMATANI Yuuji , NAKADA Takehiro , YOSHIMOTO Takashi , KOSHI Masao

    … A high-strength and high-hardness steel generally shows a duplex or a stepwise S-N curve due to change in fracture mechanism from surface-inclusion induced failure mode in high stress amplitude level to subsurface-inclusion induced one in low-stress amplitude and very high cycle fatigue (VHCF) regime. … New high speed steel was made experimentally by control the chemical compositions and evaluated with.cantilever-type rotating bending fatigue tests. …

    Transactions of the Japan Society of Mechanical Engineers. A 76(772), 1689-1697, 2010-12-25

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  • 5

    506 Effects of Mean Stress on Giga-cycle Fatigue Properties of Low-alloy Steel for Nuclear Power Plants  [in Japanese]

    糠谷 慎吾 , 小熊 博幸 , 中村 孝

    北海道支部講演会講演概要集 2010(49), 121-122, 2010-11-07

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  • 6

    1116 Giga-cycle fatigue properties for high-strength spheroidal graphite cast iron  [in Japanese]

    TAKEUCHI Etsuo , FURUYA Yoshiyuki , Liu ZHIMIN , HANDA Takuo

    … Giga-cycle fatigue properties were investigated for high-strength spheroidal graphite cast iron. … Fatigue tests were carried out using ultrasonic fatigue testing at 20 kHz and conventional fatigue testing at 30 Hz used specimens with 3 and 6 mm diameters under stress ratio of R=-1. … Accordingly, ultrasonic fatigue testing could be applicable to spheroidal graphite cast iron. …

    M&M材料力学カンファレンス 2010, 1024-1025, 2010-10-09

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  • 7

    1115 Fatigue properties of an Ultrafine-Grained Steel Processed by Warm Tempformmg  [in Japanese]

    NAGASHIMA Nobuo , FURUYA Yoshiyuki , KIMURA Yuji , INOUE Tadanobu

    … Giga-cycle fatigue properties were investigated for an ultrafine-grained steel processed by warm tempforming. … The fatigue properties were compared with conventional tempered martensite steel. … Fatigue tests were carried out at frequencies of 20Hz and 20kHz, using servo-hydraulic and ultrasonic fatigue testing machines, respectively. …

    M&M材料力学カンファレンス 2010, 1022-1023, 2010-10-09

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  • 8

    1114 Giga-cycle Fatigue Properties of Extruded Magnesium Alloys  [in Japanese]

    MORITA Shigeki , NAKAHARA Masafumi , OHNO Nobuyoshi , Tamai Fujio , KAWAKAMI Yuji

    … In order to investigate the high cycle fatigue properties of extruded ZK60 and AZ80 magnesium alloys, axial tension-compression (R=1) fatigue tests were carried out at room temperature. … The fatigue strengths at 10^9 cycles of ZK60A and AZ80A magnesium alloys were 120MPa and 110MPa, respectively. … The fatigue strengths were lower than that of 0.2% proof stresses for both alloys. …

    M&M材料力学カンファレンス 2010, 1019-1021, 2010-10-09

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  • 9

    Effects of Tempering Temperature on Very High Cycle Fatigue Properties of SNCM439(<Special Issue>M & M 2009 Conference)  [in Japanese]

    SUIMON Eri , NAKAMURA Takashi , OGUMA Hiroyuki , IKEDA Shintaro

    … Uniaxial tension-compression fatigue tests of Ni-Cr-Mo steel "SNCM439" tempered at different temperatures were conducted in air environment. … Effects of tempering temperature on fatigue properties were investigated. … As a result, the following conclusions were obtained: (1) Fatigue limit of surface fracture was proportional to Vickers hardness, and the relation was in good agreement with the expression σ_<wo>≈1.6Hv. …

    Transactions of the Japan Society of Mechanical Engineers. A 76(764), 440-442, 2010-04-25

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  • 10

    Effect of Stress Ratio on Giga-cycle Fatigue Properties for Ti–6Al–4V Alloy

    Takeuchi Etsuo , Furuya Yoshiyuki , Nagashima Nobuo , Matsuoka Saburo

    … The effect of stress ratio on giga-cycle fatigue properties was investigated for three heats of 900-MPa-class Ti–6Al–4V alloy. … Fatigue tests were carried out using ultrasonic fatigue testing at 20 kHz and conventional fatigue testing at 120 Hz. … The ultrasonic and conventional fatigue testing used 3 and 6 mm specimens, respectively. …

    Tetsu-to-Hagane 96(1), 36-41, 2010

    J-STAGE CrossRef

  • 11

    PS02 Effects of Tempering Temperature on Very High Cycle Fatigue Properties of SNCM439  [in Japanese]

    SUIMON Eri , NAKAMURA Takashi , OGUMA Hiroyuki , IKEDA Shintaro

    … Uniaxial tension-compression fatigue tests of Ni-Cr-Mo steel "SNCM439" tempered at different temperatures were conducted in air environment. … Effects of tempering temperature on fatigue properties were investigated. … (1)Fatigue limit of surface fracture was proportional to Vickers hardness, and the relation was in good agreement with the expression 6 z 1.6HV. …

    M&M材料力学カンファレンス 2009, 425-427, 2009-07-24

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  • 12

    OS0709 Ultra-High-Cycle Fatigue Properties of 600MPa Grade High Strength Steels  [in Japanese]

    SAKAMOTO Kunio , TSUJI Hirokazu , SASAKI Tetsuya , HONDA Takashi

    高張力鋼の超高サイクル疲労特性を明らかにするため,500MPa級高張力鋼SM490Aと600MPa級高張力鋼WEL-TEN590RE の平滑試験片について回転曲げ疲労試験を行い,10^8回までの超高サイクル疲労特性を評価した.その結果,SM490Aは内部破壊を生じず,超高サイクル領域まで明瞭な疲労限度を有するが,WEL-TEN590REは繰返し数10^7回以降も疲労破壊を起こすことがあり,超高サイ …

    M&M材料力学カンファレンス 2009, 275-276, 2009-07-24

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  • 13

    OS0705 Giga-cycle Fatigue Behavior of Powdered High Speed Steel  [in Japanese]

    Ebara Ryuichiro , Nakamura keisuke , Ogura Atsushi , Ishihara Yoshihiro , Hamaya Shinichi

    … Giga-cycle fatigue behavior of the powdered high speed steel,HAP72 with Rockwell C scale hardness number of 67 is mainly investigated. … Influence of the surface roughness and heat treatment on gigacycle fatigue strength of the HAP72 is mainly presented. … Fatigue crack initiation behavior of the HAP72 is discussed with respect to fracture surface morphology. …

    M&M材料力学カンファレンス 2009, 265-266, 2009-07-24

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  • 14

    205 A Study on Evaluation of Giga-cycle Fatigue Damage with Ultrasonic method  [in Japanese]

    URANO Kenji , TAKUMA Masanori , SHINKE Noboru , DOI Kenji , TERAUCHI Syuntaro

    関西支部講演会講演論文集 2009(84), "2-5", 2009-03-16

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  • 15

    OS1511 Super-Long Life Fatigue Properties of SNC631 Steels  [in Japanese]

    SAKAMOTO Kunio , TSUJI Hirokazu , SASAKI Tetsuya , HONDA Takashi

    応力集中部を有する高強度鋼の長寿命疲労特性を明らかにするため,低合金鋼SNC631の切欠き材について超音波疲労試験を行い,超長寿命疲労特性を評価した.また,超音波疲労試験データの実用性を検証するため,回転曲げ疲労試験と単軸荷重疲労試験を行い,超音波疲労試験の結果と比較した.その結果,繰返し数107回以上の長寿命領域での疲労限度の消失は出現せず,試験片の破断は全て切欠き底を起点とした表面破壊によるも …

    M&M材料力学カンファレンス 2008, "OS1511-1"-"OS1511-2", 2008-09-16

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  • 16

    Effect of surface treatment of titanium on Giga-cycle fatigue properties  [in Japanese]

    増子 知樹 , 鄭 成万 , 岡田 繁宣 [他]

    Journal of Material Testing Research Association of Japan 53(1), 27-32, 2008-01

    Cited by (1)

  • 17

    Evaluation of Giga-cycle Fatigue Properties of Austenitic Stainless Steels Using Ultrasonic Fatigue Test

    TAKAHASHI Kyouhei , OGAWA Takeshi

    … Ultrasonic fatigue tests have been performed in austenitic stainless steel, SUS316NG, in order to investigate giga-cycle fatigue strength of pre-strained materials, i.e. 5, 10 and 20% tensile pre-strains and -20% compressive pre-strain. … The austenitic stainless steels are known to exhibit remarkable self-heating during the fatigue experiment. …

    Journal of Solid Mechanics and Materials Engineering 2(3), 366-373, 2008

    J-STAGE CrossRef

  • 18

    Giga-cycle Fatigue Properties of Induction Hardened 0.40%C Carbon Steels(Mechanical Properties)  [in Japanese]

    ABE Takayuki , FURUYA Yoshiyuki , HIRUKAWA Hisashi

    … Giga-cycle fatigue tests were conducted for two heats of induction hardened 0.40%C carbon steels. … The fatigue testing types were rotating bending at 100Hz and ultrasonic at 20kHz. … The fatigue test specimens were uniformly induction hardened from the surface to the center. …

    Tetsu- to- Hagane 93(12), 775-781, 2007-12-01

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  • 19

    2035 Giga-Cycle Fatigue Properties of Induction Hardened Structural Steels  [in Japanese]

    ABE Takayuki , FURUYA Yoshiyuki , HIRUKAWA Hisashi

    … Giga-cycle fatigue tests were conducted for induction hardened S40C carbon steels. … When ultrasonic fatigue tests were compared with rotating bending, focusing on results of fish-eye fracture, the heat B results showed good agreements. …

    年次大会講演論文集 : JSME annual meeting 2007(1), 121-122, 2007-09-07

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  • 20

    2314 Ultra High-Cycle Fatigue Characteristics and Interior Crack Growth Behavior under Repeated Two-Step Loading on High Strength Steel  [in Japanese]

    SUGETA Atsushi , SUGIYAMA Yukihisa , MINOSHIMA Khoji

    … This paper presents the fatigue behavior of high strength steel, SCM435, under constant amplitude loading and repeated two step loading in ultra high-cycle region. … The axial loading fatigue tests of R=-1 was conducted at frequency of 1〜200Hz. …

    年次大会講演論文集 : JSME annual meeting 2007(1), 345-346, 2007-09-07

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