Search Results - "TOKAJI, K."

A newly developed tool without probe for friction stir spot welding and its performance by Tozaki, Y., Uematsu, Y., Tokaji, K.

“…A newly developed tool for friction stir spot welding (FSSW) has been proposed, which has no probe, but a scroll groove on its shoulder surface (scroll tool)…”
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High cycle fatigue behaviour of Ti–6Al–4V alloy at elevated temperatures by Tokaji, K.

“…High cycle fatigue behaviour of Ti–6Al–4V alloy was studied at 623 K and 723 K. Fatigue strength decreased at elevated temperatures compared with at ambient…”
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Effect of aging treatment on fatigue behaviour in extruded AZ61 and AZ80 magnesium alloys by Uematsu, Y., Tokaji, K., Matsumoto, M.

“…The effect of aging treatment on fatigue behaviour in extruded Mg alloys AZ61 and AZ80 was studied. Rotary bending fatigue tests were performed using…”
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Effect of re-filling probe hole on tensile failure and fatigue behaviour of friction stir spot welded joints in Al–Mg–Si alloy by Uematsu, Y., Tokaji, K., Tozaki, Y., Kurita, T., Murata, S.

“…In this study, the fatigue behaviour of Al–Mg–Si aluminium alloy joints joined by friction stir spot welding (FSSW) was investigated. FSSW was performed using…”
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Fatigue behaviour of friction stir welds without neither welding flash nor flaw in several aluminium alloys by Uematsu, Y., Tokaji, K., Shibata, H., Tozaki, Y., Ohmune, T.

“…Fully reversed axial fatigue tests have been performed in order to investigate the fatigue behaviour in the friction stir welds of 1050-O, 5083-O, 6061-T6 and…”
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Effect of extrusion conditions on grain refinement and fatigue behaviour in magnesium alloys by Uematsu, Y., Tokaji, K., Kamakura, M., Uchida, K., Shibata, H., Bekku, N.

“…This paper describes the grain refinement due to controlled extrusion and the fatigue behaviour of the extruded materials in three magnesium alloys, AZ31B,…”
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Fatigue behaviour and fracture mechanism of a rolled AZ31 magnesium alloy by Tokaji, K., Kamakura, M., Ishiizumi, Y., Hasegawa, N.

“…Axial fatigue tests have been performed using smooth specimens and CT specimens of a rolled AZ31 magnesium alloy in laboratory air at ambient temperature…”
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Effects of shot peening on fatigue behavior in high speed steel and cast iron with spheroidal vanadium carbides dispersed within martensitic-matrix microstructure by Uematsu, Y., Kakiuchi, T., Tokaji, K., Nishigaki, K., Ogasawara, M.

“…Four-point bending fatigue tests had been performed using high speed steel and cast iron with vanadium carbides (VCs) dispersed within the martensitic-matrix…”
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Fatigue behaviour of SiC-particulate-reinforced aluminium alloy composites with different particle sizes at elevated temperatures by Uematsu, Y., Tokaji, K., Kawamura, M.

“…Fully reversed axial fatigue tests have been performed at 150 °C (423 K) and 250 °C (523 K) using smooth specimens of SiC-particulate-reinforced aluminium…”
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Effect of processing parameters on static strength of dissimilar friction stir spot welds between different aluminium alloys by TOZAKI, Y., UEMATSU, Y., TOKAJI, K.

“…ABSTRACT The effect of processing parameters on static strength and fracture mechanisms of dissimilar friction stir spot welds between different aluminium…”
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Effect of temperature on high cycle fatigue behaviour in 18Cr–2Mo ferritic stainless steel by Uematsu, Y., Akita, M., Nakajima, M., Tokaji, K.

“…Fully reversed axial fatigue tests have been performed using smooth specimens of 18Cr–2Mo ferritic stainless steel (type 444) at ambient temperature, 673 K and…”
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Oh Radical Degradation Effects on Waste Water Processing Generated by the Ball-Lightning Like Discharge by Mitsuaki, M., Takatori, Y., Tokaji, K., Inada, Y.

“…The ball-lightning like discharge (B-L discharge), which is also called a long living Water Plasmoid or Gachina discharge and was first demonstrated by Egolov…”
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Effect of thick DLC coating on fatigue behaviour of magnesium alloy in laboratory air and demineralised water by UEMATSU, Y., TOKAJI, K., TAKEKAWA, H.

“…ABSTRACT Rotating bending fatigue tests have been performed using Diamond‐like carbon (DLC) coated specimens of a wrought magnesium alloy, AZ80A, in laboratory…”
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Some factors exerting an influence on the coaxing effect of austenitic stainless steels by AKITA, M., NAKAJIMA, M., UEMATSU, Y., TOKAJI, K., JUNG, J.-W.

“…ABSTRACT The present paper describes some factors exerting an influence on the coaxing effect of austenitic stainless steels. Particularly, the influence of…”
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High-cycle fatigue properties of beta Ti alloy 55Ti-30Nb-10Ta-5Zr, gum metal by Akita, M., Nakajima, M., Uematsu, Y., Tokaji, K., Kojima, T.

“…ABSTRACT This paper describes the fatigue properties of the beta titanium alloy 55Ti–30Nb–10Ta–5Zr, generally referred to as ‘Gum Metal’. Rotating bending…”
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Fatigue behaviour of dissimilar friction stir spot welds between A6061-T6 and low carbon steel sheets welded by a scroll grooved tool without probe by UEMATSU, Y., TOKAJI, K., TOZAKI, Y., NAKASHIMA, Y., SHIMIZU, T.

“…ABSTRACT A6061 and low carbon steel sheets, whose thicknesses were 2 mm, were welded by a friction stir spot welding (FSSW) technique using a scroll grooved…”
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Effects of particle size on fatigue crack initiation and small crack growth in SiC particulate-reinforced aluminium alloy composites by Chen, Z.Z, Tokaji, K

“…Fatigue crack initiation and small crack growth were studied under axial loading using powder metallurgy 2024 aluminum-matrix composites reinforced with SiC…”
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Effect of surface roughness on step-wise S– N characteristics in high strength steel by Itoga, H., Tokaji, K., Nakajima, M., Ko, H.-N.

“…Rotary bending fatigue tests have been performed in laboratory air at ambient temperature using specimens with different surface roughness of very high…”
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Fatigue behaviour of cast magnesium alloy AZ91 microstructurally modified by friction stir processing by UEMATSU, Y., TOKAJI, K., FUJIWARA, K., TOZAKI, Y., SHIBATA, H.

“…ABSTRACT Friction stir processing (FSP) was applied to cast magnesium alloy AZ91‐F to modify the as‐cast microstructure, and the effect of FSP on fatigue…”
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Effect of stress ratio on fatigue behaviour in SiC particulate-reinforced aluminium alloy composite by TOKAJI, K.

“…ABSTRACT Axial fatigue tests have been performed at three different stress ratios, R, of −1, 0 and 0.4 using smooth specimens of an aluminium alloy composite…”
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