Effect of density and pore morphology on fatigue properties of sintered Ti–6Al–4V
•We reported the correlation between sintered density and fatigue properties of P/M Ti–6Al–4V.•We examined the correlation between pore morphology and fatigue properties of P/M Ti–6Al–4V.•Shape factor was used to quantify the pore morphology of P/M Ti–6Al–4V.•Stress concentration factor was calculat...
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| Veröffentlicht in: | International journal of fatigue 2013-10, Vol.55, p.81-91 |
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| creator | Yan, Yingjie Nash, Guiru Liu Nash, Philip |
| description | •We reported the correlation between sintered density and fatigue properties of P/M Ti–6Al–4V.•We examined the correlation between pore morphology and fatigue properties of P/M Ti–6Al–4V.•Shape factor was used to quantify the pore morphology of P/M Ti–6Al–4V.•Stress concentration factor was calculated for different shape pores.
The fatigue properties of sintered Ti–6Al–4V were investigated as a function of sintered density and pore morphology. A quantitative analysis of microstructure was conducted to correlate with tensile and fatigue properties to understand the influence of sintered density and pore morphology. Low cycle fatigue (LCF) and high cycle fatigue (HCF) tests were conducted using two alloys with different sintered densities (95% and 99%). It was found that there was no significant difference in tensile strength but the fatigue endurance limit was increased by 20% when the sintered density was increased from 95% to 99%. Fracture surface analysis indicated that the fatigue cracks initiated from clusters of pores either at the surface or at the near sub-surface. The effect of pore morphology and porosity on mechanical behavior and fatigue fracture of P/M Ti–6Al–4V was quantified using the pore shape factor. It was found that specimens with a higher pore shape factor had a higher fatigue endurance limit. |
| doi_str_mv | 10.1016/j.ijfatigue.2013.05.015 |
| format | Article |
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The fatigue properties of sintered Ti–6Al–4V were investigated as a function of sintered density and pore morphology. A quantitative analysis of microstructure was conducted to correlate with tensile and fatigue properties to understand the influence of sintered density and pore morphology. Low cycle fatigue (LCF) and high cycle fatigue (HCF) tests were conducted using two alloys with different sintered densities (95% and 99%). It was found that there was no significant difference in tensile strength but the fatigue endurance limit was increased by 20% when the sintered density was increased from 95% to 99%. Fracture surface analysis indicated that the fatigue cracks initiated from clusters of pores either at the surface or at the near sub-surface. The effect of pore morphology and porosity on mechanical behavior and fatigue fracture of P/M Ti–6Al–4V was quantified using the pore shape factor. It was found that specimens with a higher pore shape factor had a higher fatigue endurance limit.</description><identifier>ISSN: 0142-1123</identifier><identifier>EISSN: 1879-3452</identifier><identifier>DOI: 10.1016/j.ijfatigue.2013.05.015</identifier><identifier>CODEN: IJFADB</identifier><language>eng</language><publisher>Kidlington: Elsevier Ltd</publisher><subject>Applied sciences ; Density ; Exact sciences and technology ; Fatigue ; Fatigue (materials) ; Fatigue failure ; Fatigue limit ; Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology ; Metals. Metallurgy ; Morphology ; P/M Ti–6Al–4V ; Pore morphology ; Porosity ; Powder metallurgy. Composite materials ; Production techniques ; Sintered density ; Sintered metals and alloys. Pseudo alloys. Cermets ; Sintering ; Titanium base alloys</subject><ispartof>International journal of fatigue, 2013-10, Vol.55, p.81-91</ispartof><rights>2013 Elsevier Ltd</rights><rights>2014 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c444t-16fc8cb7c5414cea555e1d6f23fd940996defbd905c9c0fd00fdca4db313e053</citedby><cites>FETCH-LOGICAL-c444t-16fc8cb7c5414cea555e1d6f23fd940996defbd905c9c0fd00fdca4db313e053</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.ijfatigue.2013.05.015$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=27658519$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Yan, Yingjie</creatorcontrib><creatorcontrib>Nash, Guiru Liu</creatorcontrib><creatorcontrib>Nash, Philip</creatorcontrib><title>Effect of density and pore morphology on fatigue properties of sintered Ti–6Al–4V</title><title>International journal of fatigue</title><description>•We reported the correlation between sintered density and fatigue properties of P/M Ti–6Al–4V.•We examined the correlation between pore morphology and fatigue properties of P/M Ti–6Al–4V.•Shape factor was used to quantify the pore morphology of P/M Ti–6Al–4V.•Stress concentration factor was calculated for different shape pores.
The fatigue properties of sintered Ti–6Al–4V were investigated as a function of sintered density and pore morphology. A quantitative analysis of microstructure was conducted to correlate with tensile and fatigue properties to understand the influence of sintered density and pore morphology. Low cycle fatigue (LCF) and high cycle fatigue (HCF) tests were conducted using two alloys with different sintered densities (95% and 99%). It was found that there was no significant difference in tensile strength but the fatigue endurance limit was increased by 20% when the sintered density was increased from 95% to 99%. Fracture surface analysis indicated that the fatigue cracks initiated from clusters of pores either at the surface or at the near sub-surface. The effect of pore morphology and porosity on mechanical behavior and fatigue fracture of P/M Ti–6Al–4V was quantified using the pore shape factor. It was found that specimens with a higher pore shape factor had a higher fatigue endurance limit.</description><subject>Applied sciences</subject><subject>Density</subject><subject>Exact sciences and technology</subject><subject>Fatigue</subject><subject>Fatigue (materials)</subject><subject>Fatigue failure</subject><subject>Fatigue limit</subject><subject>Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology</subject><subject>Metals. Metallurgy</subject><subject>Morphology</subject><subject>P/M Ti–6Al–4V</subject><subject>Pore morphology</subject><subject>Porosity</subject><subject>Powder metallurgy. Composite materials</subject><subject>Production techniques</subject><subject>Sintered density</subject><subject>Sintered metals and alloys. Pseudo alloys. Cermets</subject><subject>Sintering</subject><subject>Titanium base alloys</subject><issn>0142-1123</issn><issn>1879-3452</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><recordid>eNqFkE1OwzAQhS0EEqVwBrxBYpMwTuykWVZV-ZEqsSlsLdceF1dpHOwUqTvuwA05CYladctiZjbvzZv5CLllkDJgxcMmdRurOrfeYZoBy1MQKTBxRkZsUlZJzkV2TkbAeJYwluWX5CrGDQBUUIoReZtbi7qj3lKDTXTdnqrG0NYHpFsf2g9f-_We-oYeM2gbfIuhcxgHU3RNhwENXbrf759iWvedv1-TC6vqiDfHOSbLx_ly9pwsXp9eZtNFojnnXcIKqyd6VWrBGdeohBDITGGz3JqKQ1UVBu3KVCB0pcEa6EsrblY5yxFEPib3h7X9TZ87jJ3cuqixrlWDfhcl4wUXAop8kJYHqQ4-xoBWtsFtVdhLBnLgKDfyxFEOHCUI2XPsnXfHEBW1qm1QjXbxZM_KQkwEq3rd9KDD_uEvh0FG7bDRaFzoCUvj3b9Zf6hij-I</recordid><startdate>20131001</startdate><enddate>20131001</enddate><creator>Yan, Yingjie</creator><creator>Nash, Guiru Liu</creator><creator>Nash, Philip</creator><general>Elsevier Ltd</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20131001</creationdate><title>Effect of density and pore morphology on fatigue properties of sintered Ti–6Al–4V</title><author>Yan, Yingjie ; Nash, Guiru Liu ; Nash, Philip</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c444t-16fc8cb7c5414cea555e1d6f23fd940996defbd905c9c0fd00fdca4db313e053</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>Applied sciences</topic><topic>Density</topic><topic>Exact sciences and technology</topic><topic>Fatigue</topic><topic>Fatigue (materials)</topic><topic>Fatigue failure</topic><topic>Fatigue limit</topic><topic>Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology</topic><topic>Metals. Metallurgy</topic><topic>Morphology</topic><topic>P/M Ti–6Al–4V</topic><topic>Pore morphology</topic><topic>Porosity</topic><topic>Powder metallurgy. Composite materials</topic><topic>Production techniques</topic><topic>Sintered density</topic><topic>Sintered metals and alloys. Pseudo alloys. Cermets</topic><topic>Sintering</topic><topic>Titanium base alloys</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Yan, Yingjie</creatorcontrib><creatorcontrib>Nash, Guiru Liu</creatorcontrib><creatorcontrib>Nash, Philip</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>International journal of fatigue</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Yan, Yingjie</au><au>Nash, Guiru Liu</au><au>Nash, Philip</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effect of density and pore morphology on fatigue properties of sintered Ti–6Al–4V</atitle><jtitle>International journal of fatigue</jtitle><date>2013-10-01</date><risdate>2013</risdate><volume>55</volume><spage>81</spage><epage>91</epage><pages>81-91</pages><issn>0142-1123</issn><eissn>1879-3452</eissn><coden>IJFADB</coden><abstract>•We reported the correlation between sintered density and fatigue properties of P/M Ti–6Al–4V.•We examined the correlation between pore morphology and fatigue properties of P/M Ti–6Al–4V.•Shape factor was used to quantify the pore morphology of P/M Ti–6Al–4V.•Stress concentration factor was calculated for different shape pores.
The fatigue properties of sintered Ti–6Al–4V were investigated as a function of sintered density and pore morphology. A quantitative analysis of microstructure was conducted to correlate with tensile and fatigue properties to understand the influence of sintered density and pore morphology. Low cycle fatigue (LCF) and high cycle fatigue (HCF) tests were conducted using two alloys with different sintered densities (95% and 99%). It was found that there was no significant difference in tensile strength but the fatigue endurance limit was increased by 20% when the sintered density was increased from 95% to 99%. Fracture surface analysis indicated that the fatigue cracks initiated from clusters of pores either at the surface or at the near sub-surface. The effect of pore morphology and porosity on mechanical behavior and fatigue fracture of P/M Ti–6Al–4V was quantified using the pore shape factor. It was found that specimens with a higher pore shape factor had a higher fatigue endurance limit.</abstract><cop>Kidlington</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.ijfatigue.2013.05.015</doi><tpages>11</tpages></addata></record> |
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| ispartof | International journal of fatigue, 2013-10, Vol.55, p.81-91 |
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| subjects | Applied sciences Density Exact sciences and technology Fatigue Fatigue (materials) Fatigue failure Fatigue limit Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology Metals. Metallurgy Morphology P/M Ti–6Al–4V Pore morphology Porosity Powder metallurgy. Composite materials Production techniques Sintered density Sintered metals and alloys. Pseudo alloys. Cermets Sintering Titanium base alloys |
| title | Effect of density and pore morphology on fatigue properties of sintered Ti–6Al–4V |
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