Dislocation Structures and Intergranular Crack Initiation in Fatigued Copper
Although a number of models for the initiation of intergranular cracks under fatigue have been proposed, most of them are not considered to be sufficient qualitatively. In this study, the mechanism of intergranular crack initiation in fatigued copper is investigated on the basis of the observation o...
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| Veröffentlicht in: | Nihon Kikai Gakkai ronbunshū. A 1996/03/25, Vol.62(595), pp.654-660 |
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| Sprache: | eng ; jpn |
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| container_title | Nihon Kikai Gakkai ronbunshū. A |
| container_volume | 62 |
| creator | KANESHIRO, Hideo KATAGIRI, Kazumune MAKABE, Chobin ITOMURA, Shousuke |
| description | Although a number of models for the initiation of intergranular cracks under fatigue have been proposed, most of them are not considered to be sufficient qualitatively. In this study, the mechanism of intergranular crack initiation in fatigued copper is investigated on the basis of the observation of dislocation structures and surface topography by means of transmission and scanning electron microscopy. At the intersections of ladder-like structures with the grain boundary, extrusion-type intergranular deformations are frequently observed. It is also found that the ladder-like structures are sometimes formed along the grain and twin boundaries. On the basis of these observations, a mechanism of crack initiation at the grain boundary is proposed. |
| doi_str_mv | 10.1299/kikaia.62.654 |
| format | Article |
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In this study, the mechanism of intergranular crack initiation in fatigued copper is investigated on the basis of the observation of dislocation structures and surface topography by means of transmission and scanning electron microscopy. At the intersections of ladder-like structures with the grain boundary, extrusion-type intergranular deformations are frequently observed. It is also found that the ladder-like structures are sometimes formed along the grain and twin boundaries. 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On the basis of these observations, a mechanism of crack initiation at the grain boundary is proposed.</description><subject>Copper</subject><subject>Crack initiation</subject><subject>Deformation</subject><subject>Dislocation</subject><subject>Dislocations (crystals)</subject><subject>Fatigue</subject><subject>Grain boundaries</subject><subject>Intergranular Crack Initiation</subject><subject>Intergranular Deformation</subject><subject>Ladder-like Structure</subject><subject>Mathematical models</subject><subject>Nonferrous Metal</subject><subject>Nonferrous metals</subject><subject>Scanning electron microscopy</subject><subject>Surface structure</subject><subject>Transmission electron microscopy</subject><issn>0387-5008</issn><issn>1884-8338</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1996</creationdate><recordtype>article</recordtype><recordid>eNp1kL1PwzAQxS0EElXpyJ6NKcWOHX-MKFAoqsRAd8txLsU0TYLtDPz3pKTqgMT0Tqffu9N7CN0SvCSZUvd7tzfOLHm25Dm7QDMiJUslpfISzTCVIs0xltdoEYIrMaZEEMyzGdo8utB01kTXtcl79IONg4eQmLZK1m0Ev_OmHRrjk8Ibux93LrqJdm2yGqfdAFVSdH0P_gZd1aYJsDjpHG1XT9viJd28Pa-Lh01qKctZWlac41xYJUogdU1kBjVlJSuFlVVN7ChGVaCqkpeK5TXNuBQSKmUZwzKjc3Q3ne199zVAiPrggoWmMS10Q9CCcUyVZHQk04m0vgvBQ6177w7Gf2uC9bE2PdWmeabH2kae_uGti79pozeu-df1Ork-QzQ7OP8wPjrbwIkmSqijI1f5WXJ2huyH8Rpa-gNydI4P</recordid><startdate>19960101</startdate><enddate>19960101</enddate><creator>KANESHIRO, Hideo</creator><creator>KATAGIRI, Kazumune</creator><creator>MAKABE, Chobin</creator><creator>ITOMURA, Shousuke</creator><general>The Japan Society of Mechanical Engineers</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7TC</scope></search><sort><creationdate>19960101</creationdate><title>Dislocation Structures and Intergranular Crack Initiation in Fatigued Copper</title><author>KANESHIRO, Hideo ; KATAGIRI, Kazumune ; MAKABE, Chobin ; ITOMURA, Shousuke</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3454-bd66057c97be1ff182ef34b4b7c8df1c7c8a9de9db6b945f326878ed9c440823</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng ; jpn</language><creationdate>1996</creationdate><topic>Copper</topic><topic>Crack initiation</topic><topic>Deformation</topic><topic>Dislocation</topic><topic>Dislocations (crystals)</topic><topic>Fatigue</topic><topic>Grain boundaries</topic><topic>Intergranular Crack Initiation</topic><topic>Intergranular Deformation</topic><topic>Ladder-like Structure</topic><topic>Mathematical models</topic><topic>Nonferrous Metal</topic><topic>Nonferrous metals</topic><topic>Scanning electron microscopy</topic><topic>Surface structure</topic><topic>Transmission electron microscopy</topic><toplevel>online_resources</toplevel><creatorcontrib>KANESHIRO, Hideo</creatorcontrib><creatorcontrib>KATAGIRI, Kazumune</creatorcontrib><creatorcontrib>MAKABE, Chobin</creatorcontrib><creatorcontrib>ITOMURA, Shousuke</creatorcontrib><collection>CrossRef</collection><collection>Mechanical Engineering Abstracts</collection><jtitle>Nihon Kikai Gakkai ronbunshū. 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In this study, the mechanism of intergranular crack initiation in fatigued copper is investigated on the basis of the observation of dislocation structures and surface topography by means of transmission and scanning electron microscopy. At the intersections of ladder-like structures with the grain boundary, extrusion-type intergranular deformations are frequently observed. It is also found that the ladder-like structures are sometimes formed along the grain and twin boundaries. On the basis of these observations, a mechanism of crack initiation at the grain boundary is proposed.</abstract><pub>The Japan Society of Mechanical Engineers</pub><doi>10.1299/kikaia.62.654</doi><tpages>7</tpages><oa>free_for_read</oa></addata></record> |
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| identifier | ISSN: 0387-5008 |
| ispartof | Transactions of the Japan Society of Mechanical Engineers Series A, 1996/03/25, Vol.62(595), pp.654-660 |
| issn | 0387-5008 1884-8338 |
| language | eng ; jpn |
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| source | J-STAGE (Japan Science & Technology Information Aggregator, Electronic) Freely Available Titles - Japanese; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals |
| subjects | Copper Crack initiation Deformation Dislocation Dislocations (crystals) Fatigue Grain boundaries Intergranular Crack Initiation Intergranular Deformation Ladder-like Structure Mathematical models Nonferrous Metal Nonferrous metals Scanning electron microscopy Surface structure Transmission electron microscopy |
| title | Dislocation Structures and Intergranular Crack Initiation in Fatigued Copper |
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