Search Results - "Ito, Kiyohiro"

Proposal of a simple identification method of Young’s modulus based on ball impact tests by ITO, Kiyohiro

“…Young’s modulus is one of the most important mechanical properties of materials, and several methods, such as the indentation method, ultrasonic pulse method,…”
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Simple estimation method for strain rate sensitivity based on the difference between the indentation sizes formed by spherical-shaped impactors by Ito, Kiyohiro, Arai, Masayuki

“…•Estimation method for strain rate sensitivity based on indentation size established.•Heat conduction equation introduced to estimate temperature…”
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Characterization and Modification of Tensile Strength Property of Cold-Sprayed Pure Iron Coating with Fine Crystal Grains by Ito, Kiyohiro, Ichikawa, Yuji

“…The cold spray technique is expected to effectively form a metallic coating with fine crystal grains originating from the microstructure of the original…”
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Damage Evaluation of Thermal Barrier Coatings Subjected to a High-Velocity Impingement of a Solid Sphere under Room and High Temperature Conditions by Ito, Kiyohiro, Arai, Masayuki

“…Thermal barrier coatings (TBCs) applied to turbine blades in jet engines or gas turbines are at risk of high-velocity impingement from different foreign…”
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Microstructure control of cold-sprayed pure iron coatings formed using mechanically milled powder by Ito, Kiyohiro, Ichikawa, Yuji

“…Nanocrystalline metallic materials with grain sizes of less than 100 nm exhibit high strength and unique characteristics, such as high levels of ductility and…”
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Numerical simulation of inelastic deformation and crack propagation in TBC-multilayered Ni-based superalloy subjected to thermo-mechanical loadings by Arai, Masayuki, Katori, Hiroaki, Ito, Kiyohiro

“…A finite element analysis code was developed to accurately predict stress and damage fields in thermal barrier coatings (TBCs) systems subjected to…”
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Improvement of Oxidation Resistance and Adhesion Strength of Thermal Barrier Coating by Grinding and Grit-Blasting Treatments by Ito, Kiyohiro, Shima, Takashi, Fujioka, Makoto, Arai, Masayuki

“…The formation of thermally grown oxide (TGO), which is composed of alumina and mixed oxides, leads to the delamination of thermal barrier coating (TBC). In…”
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Numerical simulation of damage and inelastic deformation of porous thermal barrier coatings system under high-temperature fatigue loading condition by ZHANG, Wanjun, ARAI, Masayuki, ITO, Kiyohiro

“…In this study, a finite element (FE) analysis code installing an inelastic constitutive model and crack growth algorithm for thermal barrier coatings (TBCs)…”
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Estimation of creep constitutive equation by creep indentation test using cylindrical indenter by DOI, Tomomichi, ARAI, Masayuki, ITO, Kiyohiro

“…The creep exponent, n, and creep coefficient, k, in Norton’s law characterizes the creep deformation of a high-temperature material. For identifying the creep…”
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Experimental and Numerical Analyses on the Deposition Behavior of Spherical Aluminum Particles in the Cold-Spray-Emulated High-Velocity Impact Process by Ito, Kiyohiro, Ichikawa, Yuji, Ogawa, Kazuhiro

“…Understanding the deposition mechanism of fine solid particles is essential for the effective use of the cold spray (CS) technique, which is used to synthesize…”
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Numerical simulation of damage and inelastic deformation of porous thermal barrier coatings system by ZHANG, Wanjun, ARAI, Masayuki, ITO, Kiyohiro

“…Thermal barrier coating (TBC) is widely applied to gas turbine blade surface to protect the metallic substrate from high-temperature combustion gas flow…”
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Thermal and mechanical properties of APS-YbTa3O9 thermal barrier coatings by OKUNO, Kazuma, ARAI, Masayuki, ITO, Kiyohiro, SUIDZU, Tatsuo, HABU, Yoichiro

“…An advanced thermal barrier coating development is demanded for achieving the next generation gas turbine with a high efficiency. As one of many candidates in…”
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球体衝突試験に基づく簡便なヤング率同定手法の提案 by 伊藤, 潔洋

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Brick model for nonlinear deformation and microcracking in thermal barrier coating by YONEMICHI, Eito, KATORI, Hiroaki, ARAI, Masayuki, ITO, Kiyohiro, SUIDZU, Tatsuo

“…Thermal barrier coatings (TBCs) applied to turbine blades indicate nonlinear deformation and complex fracture behavior due to the microstructure which is…”
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Solidification process of a water droplets freely dropped on a cooled substrate and development of crack initiation and delamination models by Sota TANIGUCHI, Iori YAMAZAKI, Masayuki ARAI, Kiyohiro ITO

“…The icing phenomenon, which is due to continuous deposition of water droplets or super-cooled droplets, causes serious problems, such as airplane crashes and…”
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Transfer matrix method for elastic-plastic problem of space-curved beam structure by Sho-ichi KURODA, Masayuki ARAI, Kiyohiro ITO

“…Problems of space-curved beam structures have been extensively studied by many researchers. Stress analyses for the structural problems are conducted based on…”
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High-temperature tensile and fatigue strength properties of stainless steel repaired by laser metal deposition method by ITO, Kiyohiro, INADA, Kenji, ARAI, Masayuki, FUKUSHI, Tatsuya, YOKOTA, Hiroki, SUIDZU, Tatsuo

“…An overlay welding is widely employed to repair damaged components in aged thermal power plants. However, the overlay welding causes heat-affected zone and…”
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Damage evolution of TBC by rapid thermal cycling test based on a laser irradiation by Yusuke HAYASHI, Kento SUZUKI, Masayuki ARAI, Kiyohiro ITO, Tsuyoshi HIGUCHI, Tatsuo SUIDZU

“…Thermal barrier coating (TBC) is deposited onto the surface of gas turbine blade in order to prevent from a high-temperature combustion gas flow. Crack and…”
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Development of estimation method of strain rate dependency of materials based on a high-velocity impingement test with a solid sphere by Kiyohiro ITO, Toshikazu MURAMATSU, Masayuki ARAI

“…Johnson-Cook (JC) flow stress model is widely used in computer aided engineering (CAE) for simulations of car crash and machining behaviors. The JC parameter…”
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高温疲労条件下での多孔質遮熱コーティングシステムの損傷・非弾性変形に関する数値シミュレーション by 張, 婉君, 荒井, 正行, 伊藤, 潔洋

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