研究者詳細 - 黒島　義人

論文 - 黒島　義人

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高強度鋼の高サイクル疲労域における内部き裂進展挙動査読有り

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日本機械学会論文集(A編) 64 ( 626 ) 2536 - 2536 1998年04月

き裂開閉口変位に基づいた微小き裂伝ぱ則の構築査読有り

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材料 46 ( 10 ) 1173 - 1173 1997年04月

On the Transition of Incipient Growth of Fatigue Crack from Stage I to Stage II under Combined Bending/Torsion 査読有り

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Proceedings of the 5th International Conference on Biaxial/Multiaxial Fatigue & Fracture II 46 - 46 1997年04月

Surface hardening of ductile cast iron using stainless steel 査読有り

Qian M., Harada S., Kuroshima Y., Nagayoshi H.

Materials Science and Engineering A 208 ( 1 ) 88 - 92 1996年04月

担当区分：責任著者記述言語：英語掲載種別：研究論文（学術雑誌）

A surface hardening technique for improving the wear resistance of ductile cast iron (DI) is proposed by fabricating molten DI with stainless steel. The essential idea is concerned with using the chromium source in stainless steel and the carbon source in DI to form chromium carbides. It was demonstrated that the surface of the fabricated DI consisted of firstly a layer of high chromium white cast iron ((Cr,Fe)7C3 eutectic carbides), which was originally stainless steel, and then a layer of medium-low-chromium white cast iron ((Fe,Cr)3C eutectic carbides), which was originally DI. Thus the hardness of the surface layer became 2-3 times that of the baseline ductile cast iron. Applying austenitic stainless steel produces a much better hardening effect than applying ferritic stainless steel. The depth of the hardened surface layer depends on the pouring temperature of the iron melt, the wall thickness of the iron casting and the cooling rate of the casting mold. The present strategy is, in principle, possibly applied to complete as well as local surface hardening of various kinds of ductile iron castings.

DOI： 10.1016/0921-5093(95)10058-X

Scopus

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Surface harclening of ductile cast iron using stainless steel 査読有り

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Materials Science and Engineering A208 88 - 88 1996年04月

Effect of Sphroidal Graphite on Low cycle Fatigue Properties of Ferritic Ductile Cast Iron 査読有り

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FATIGUE '96 239 - 239 1996年04月

Fatigue Properties of a Very Thin Steel Wire under Fluctuating Tension 査読有り

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FATIGUE '96 1177 - 1177 1996年04月

Growth rate and closure of fatigue cracks under high-cycle fatigue random loading 査読有り

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LOCALIZED DAMAGE IV 291 - 291 1996年04月

Effect of nodule counts on the low-cycle fatigue properties of ferritic ductile cast iron 査読有り

Harada S., Kuroshima Y., Fukushima Y., Ueda T.

American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP 306 247 - 252 1995年12月

担当区分：責任著者記述言語：英語掲載種別：研究論文（国際会議プロシーディングス）

Two kinds of ferritic ductile cast iron, having same chemical composition and different nodule count, i.e., high nodule count material (HNC) and low nodule count material (LNC), were low-cycle fatigued under stress-controlled cycling. The difference of nodule count induced difference in cyclic hardening behavior, LCF strength and fatigue mechanism. When LCF life was evaluated in terms of cyclic plastic strain range which includes the effect of cyclic hardening properties, both materials showed same fatigue strength. Although spheroidal graphite (SG) played an important role as a crack initiation site at an early stage of fatigue process, subsequent fatigue process was differed between HNC and LNC. In case of HNC, the fatigue process was dominated by the growth of a single crack. On the contrary, independent growth of subcracks without forming a leading crack controlled the whole fatigue process in material LNC. In addition, contradictory to number of nodule counts, the density of the initiated subcracks was higher in LNC than in HNC. Statistical analysis of three dimensional (3D) distribution of SG revealed that the difference in fatigue mechanism mentioned so far was mainly caused by the difference of distribution of SG size. Finally image processing analysis of 3D fracture surface showed that the roughness in crack growth area was larger in LNC than in HNC.

Scopus

その他リンク： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=0029423696&origin=inward

高濃度浸炭鋼の疲労特性に及ぼす析出炭化物の影響査読有り

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日本機械学会論文集(A編) 61 ( 590 ) 2109 - 2109 1995年04月

硬鋼線の張力変動による疲労強度特性査読有り

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材料 44 ( 500 ) 551 - 551 1995年04月

フェライト型球状黒鉛鋳鉄の低サイクル疲労特性に及ぼす採取位置の影響査読有り

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日本機械学会論文集(A編) 61 ( 584 ) 705 - 705 1995年04月

The Effect of Nodule Counts on the Low-Cycle Fatigue Properties of Ferritic Ductile Cast Iron 査読有り

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PVP-Vol.306 306 247 - 247 1995年04月

高強度鋼の介在物を起点とした疲労き裂進展挙動と破壊モード遷移の関係査読有り

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日本機械学会論文集(A編) 60 ( 580 ) 2710 - 2710 1994年04月

Fracture Mode Transition in High Cycle Fatigue of High Strength Steel 査読有り

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Recent Advances in Experimental Mechanics 2 1167 - 1167 1994年04月

高強度鋼の高サイクル疲労における破壊モード遷移について査読有り

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日本機械学会論文集 (A編) 59 ( 560 ) 1001 - 1001 1993年04月

Numerical Simulation of Inclusion Size Distribution Responsible for Fatigue Initiation 査読有り

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Fatigue 93 1 311 - 311 1993年04月

シミュレーションによる疲労破壊起点の介在物寸法の評価査読有り

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日本機械学会論文集(A編) 57 ( 543 ) 2628 - 2628 1991年04月

疲労破壊起点の介在物寸法と介在物分布の関係査読有り

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日本機械学会論文集(A編) 56 ( 529 ) 1920 - 1920 1990年04月

Relation between Critical Size of Inclusion Responsible for Fatigue Failure and Inclusion Size Distribution 査読有り

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Proceedings of the KSME/JSME Joint Conference on FRACTURE AND STRENGTH '90 73 - 73 1990年04月

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