Evaluation of Fatigue Strength of Ductile Cast Iron Composed of Ferrite-pearlitic Structures with As-cast Surfaces: Effect of Surface Roughness, Microstructure Transition Layers, Defects and Residual Stress on Fatigue Strength
In order to elucidate the complex effects of surface roughness, the transition of microstructures from the surface to the interior, defects and residual stress, tension-compression fatigue tests have been conducted by using shot blasted ferrite-pearlite ductile cast irons with as-cast surfaces. Rega...
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| Veröffentlicht in: | Journal of Solid Mechanics and Materials Engineering 2007, Vol.1(2), pp.211-222 |
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| container_title | Journal of Solid Mechanics and Materials Engineering |
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| creator | YAMABE, Junichiro KOBAYASHI, Motokazu NAKAJIMA, Noriyuki |
| description | In order to elucidate the complex effects of surface roughness, the transition of microstructures from the surface to the interior, defects and residual stress, tension-compression fatigue tests have been conducted by using shot blasted ferrite-pearlite ductile cast irons with as-cast surfaces. Regardless of the applied stress levels, the fracture origins of the specimens were mostly situated at a defect near an as-cast surface, slag, or pinhole at Nf |
| doi_str_mv | 10.1299/jmmp.1.211 |
| format | Article |
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Regardless of the applied stress levels, the fracture origins of the specimens were mostly situated at a defect near an as-cast surface, slag, or pinhole at Nf<107. At a relatively lower stress amplitude, some fatigue fractures such as shrinkage occurred from an inner defect far from the surface, mostly at Nf<107. The √area parameter model was applied to the quantitative evaluation of the fatigue limit. The equivalent hardness considering the transitional layers and the effective defect size with the interaction between the surface roughness and a defect were defined. Moreover, the relief of the residual stress during the fatigue tests was detected. The mean value of the relieved residual stress acting on a defect was employed for the quantitative evaluation. By using these parameters, the complex effects of ductile cast iron have been successfully evaluated for practical use.</description><identifier>ISSN: 1880-9871</identifier><identifier>EISSN: 1880-9871</identifier><identifier>DOI: 10.1299/jmmp.1.211</identifier><language>eng</language><publisher>The Japan Society of Mechanical Engineers</publisher><subject>area Parameter Model ; Casting Defect ; Ductile Cast Iron ; Fatigue Strength ; Residual Stress ; Surface Roughness</subject><ispartof>Journal of Solid Mechanics and Materials Engineering, 2007, Vol.1(2), pp.211-222</ispartof><rights>2007 by The Japan Society of Mechanical Engineers</rights><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c90n-198cc5c6434eac6809034eb05cc1d4220fa998f5efe05e5ddf716b324f8803f53</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,1881,4022,27922,27923,27924</link.rule.ids></links><search><creatorcontrib>YAMABE, Junichiro</creatorcontrib><creatorcontrib>KOBAYASHI, Motokazu</creatorcontrib><creatorcontrib>NAKAJIMA, Noriyuki</creatorcontrib><title>Evaluation of Fatigue Strength of Ductile Cast Iron Composed of Ferrite-pearlitic Structures with As-cast Surfaces: Effect of Surface Roughness, Microstructure Transition Layers, Defects and Residual Stress on Fatigue Strength</title><title>Journal of Solid Mechanics and Materials Engineering</title><addtitle>JSMME</addtitle><description>In order to elucidate the complex effects of surface roughness, the transition of microstructures from the surface to the interior, defects and residual stress, tension-compression fatigue tests have been conducted by using shot blasted ferrite-pearlite ductile cast irons with as-cast surfaces. Regardless of the applied stress levels, the fracture origins of the specimens were mostly situated at a defect near an as-cast surface, slag, or pinhole at Nf<107. At a relatively lower stress amplitude, some fatigue fractures such as shrinkage occurred from an inner defect far from the surface, mostly at Nf<107. The √area parameter model was applied to the quantitative evaluation of the fatigue limit. The equivalent hardness considering the transitional layers and the effective defect size with the interaction between the surface roughness and a defect were defined. Moreover, the relief of the residual stress during the fatigue tests was detected. The mean value of the relieved residual stress acting on a defect was employed for the quantitative evaluation. By using these parameters, the complex effects of ductile cast iron have been successfully evaluated for practical use.</description><subject>area Parameter Model</subject><subject>Casting Defect</subject><subject>Ductile Cast Iron</subject><subject>Fatigue Strength</subject><subject>Residual Stress</subject><subject>Surface Roughness</subject><issn>1880-9871</issn><issn>1880-9871</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2007</creationdate><recordtype>article</recordtype><recordid>eNpNkF1LwzAUhoMoOD9u_AW9FjqTtumaG2HUTQcDL7b7kKUnW0a_OEkV_73pJsOLkJfkeQ6cl5AnRqcsEeLl2DT9lE0Txq7IhBUFjUUxY9f_8i25c-5IaS6o4BOCiy9VD8rbro06Ey1D2g8QbTxCu_eH8e1t0N7WEJXK-WiFASy7pu8cVCcDEK2HuAeFtfVWj24wBgQXfdswYu5iPaqbAY3S4B7IjVG1g8e_-55sl4tt-RGvP99X5Xwda0HbmIlCa67zLM1A6byggoa0o1xrVmVJQo0SojAcDFAOvKrMjOW7NMlM2DQ1PL0nz-exGjvnEIzs0TYKfySjcixLjmVJJkNZAX49w0fn1R4uqMKwUQ0X9HSCcPnQB4US2vQXnm12Yg</recordid><startdate>2007</startdate><enddate>2007</enddate><creator>YAMABE, Junichiro</creator><creator>KOBAYASHI, Motokazu</creator><creator>NAKAJIMA, Noriyuki</creator><general>The Japan Society of Mechanical Engineers</general><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>2007</creationdate><title>Evaluation of Fatigue Strength of Ductile Cast Iron Composed of Ferrite-pearlitic Structures with As-cast Surfaces</title><author>YAMABE, Junichiro ; KOBAYASHI, Motokazu ; NAKAJIMA, Noriyuki</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c90n-198cc5c6434eac6809034eb05cc1d4220fa998f5efe05e5ddf716b324f8803f53</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2007</creationdate><topic>area Parameter Model</topic><topic>Casting Defect</topic><topic>Ductile Cast Iron</topic><topic>Fatigue Strength</topic><topic>Residual Stress</topic><topic>Surface Roughness</topic><toplevel>online_resources</toplevel><creatorcontrib>YAMABE, Junichiro</creatorcontrib><creatorcontrib>KOBAYASHI, Motokazu</creatorcontrib><creatorcontrib>NAKAJIMA, Noriyuki</creatorcontrib><collection>CrossRef</collection><jtitle>Journal of Solid Mechanics and Materials Engineering</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>YAMABE, Junichiro</au><au>KOBAYASHI, Motokazu</au><au>NAKAJIMA, Noriyuki</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Evaluation of Fatigue Strength of Ductile Cast Iron Composed of Ferrite-pearlitic Structures with As-cast Surfaces: Effect of Surface Roughness, Microstructure Transition Layers, Defects and Residual Stress on Fatigue Strength</atitle><jtitle>Journal of Solid Mechanics and Materials Engineering</jtitle><addtitle>JSMME</addtitle><date>2007</date><risdate>2007</risdate><volume>1</volume><issue>2</issue><spage>211</spage><epage>222</epage><pages>211-222</pages><issn>1880-9871</issn><eissn>1880-9871</eissn><abstract>In order to elucidate the complex effects of surface roughness, the transition of microstructures from the surface to the interior, defects and residual stress, tension-compression fatigue tests have been conducted by using shot blasted ferrite-pearlite ductile cast irons with as-cast surfaces. Regardless of the applied stress levels, the fracture origins of the specimens were mostly situated at a defect near an as-cast surface, slag, or pinhole at Nf<107. At a relatively lower stress amplitude, some fatigue fractures such as shrinkage occurred from an inner defect far from the surface, mostly at Nf<107. The √area parameter model was applied to the quantitative evaluation of the fatigue limit. The equivalent hardness considering the transitional layers and the effective defect size with the interaction between the surface roughness and a defect were defined. Moreover, the relief of the residual stress during the fatigue tests was detected. The mean value of the relieved residual stress acting on a defect was employed for the quantitative evaluation. By using these parameters, the complex effects of ductile cast iron have been successfully evaluated for practical use.</abstract><pub>The Japan Society of Mechanical Engineers</pub><doi>10.1299/jmmp.1.211</doi><tpages>12</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | area Parameter Model Casting Defect Ductile Cast Iron Fatigue Strength Residual Stress Surface Roughness |
| title | Evaluation of Fatigue Strength of Ductile Cast Iron Composed of Ferrite-pearlitic Structures with As-cast Surfaces: Effect of Surface Roughness, Microstructure Transition Layers, Defects and Residual Stress on Fatigue Strength |
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