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VHCF response of Gaussian SLM AlSi10Mg specimens: Effect of a stress relief heat treatment
•Ultrasonic VHCF tests were successfully conducted on AlSi10 SLM Gaussian specimens.•Annealing for two hours at 320 °C is detrimental for the VHCF response.•The evolution of Si particles during the heat treatment affects the VHCF response.•The performed tests extend the knowledge about the VHCF resp...
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Published in: | International journal of fatigue 2019-07, Vol.124, p.435-443 |
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container_title | International journal of fatigue |
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creator | Tridello, A. Fiocchi, J. Biffi, C.A. Chiandussi, G. Rossetto, M. Tuissi, A. Paolino, D.S. |
description | •Ultrasonic VHCF tests were successfully conducted on AlSi10 SLM Gaussian specimens.•Annealing for two hours at 320 °C is detrimental for the VHCF response.•The evolution of Si particles during the heat treatment affects the VHCF response.•The performed tests extend the knowledge about the VHCF response of AlSi10Mg SLM parts.
The present paper investigates the effect of a stress relief heat treatment (two hours at 320 °C and air cooling down) on the VHCF response of an AlSi10Mg alloy produced through SLM. Ultrasonic tension-compression tests up to 109 cycles were carried out on as-built and heat treated Gaussian specimens with a large loaded volume. Experimental results showed that the investigated heat treatment has a detrimental effect on the VHCF response: VHCF strength reduction is larger than 20% at number of cycles above 108. The microstructural changes induced by the heat treatment (i.e., rupture and spheroidization of the original eutectic silicon network) was shown to be the main reason for the VHCF decrement, thus suggesting that an optimization of the heat treatment parameters is required. |
doi_str_mv | 10.1016/j.ijfatigue.2019.02.020 |
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The present paper investigates the effect of a stress relief heat treatment (two hours at 320 °C and air cooling down) on the VHCF response of an AlSi10Mg alloy produced through SLM. Ultrasonic tension-compression tests up to 109 cycles were carried out on as-built and heat treated Gaussian specimens with a large loaded volume. Experimental results showed that the investigated heat treatment has a detrimental effect on the VHCF response: VHCF strength reduction is larger than 20% at number of cycles above 108. The microstructural changes induced by the heat treatment (i.e., rupture and spheroidization of the original eutectic silicon network) was shown to be the main reason for the VHCF decrement, thus suggesting that an optimization of the heat treatment parameters is required.</description><identifier>ISSN: 0142-1123</identifier><identifier>EISSN: 1879-3452</identifier><identifier>DOI: 10.1016/j.ijfatigue.2019.02.020</identifier><language>eng</language><publisher>Kidlington: Elsevier Ltd</publisher><subject>Additive manufacturing ; Air cooling ; AlSi10Mg alloy ; Aluminum base alloys ; Compression tests ; Heat treating ; Heat treatment ; Materials fatigue ; Optimization ; Selective Laser Melting (SLM) ; Spheroidizing ; Very High Cycle Fatigue (VHCF)</subject><ispartof>International journal of fatigue, 2019-07, Vol.124, p.435-443</ispartof><rights>2019 Elsevier Ltd</rights><rights>Copyright Elsevier BV Jul 2019</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c343t-24b96e5df1774a192e8396d53290cba7883ceeb69258d58d2d5b353e9192b4b43</citedby><cites>FETCH-LOGICAL-c343t-24b96e5df1774a192e8396d53290cba7883ceeb69258d58d2d5b353e9192b4b43</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>Tridello, A.</creatorcontrib><creatorcontrib>Fiocchi, J.</creatorcontrib><creatorcontrib>Biffi, C.A.</creatorcontrib><creatorcontrib>Chiandussi, G.</creatorcontrib><creatorcontrib>Rossetto, M.</creatorcontrib><creatorcontrib>Tuissi, A.</creatorcontrib><creatorcontrib>Paolino, D.S.</creatorcontrib><title>VHCF response of Gaussian SLM AlSi10Mg specimens: Effect of a stress relief heat treatment</title><title>International journal of fatigue</title><description>•Ultrasonic VHCF tests were successfully conducted on AlSi10 SLM Gaussian specimens.•Annealing for two hours at 320 °C is detrimental for the VHCF response.•The evolution of Si particles during the heat treatment affects the VHCF response.•The performed tests extend the knowledge about the VHCF response of AlSi10Mg SLM parts.
The present paper investigates the effect of a stress relief heat treatment (two hours at 320 °C and air cooling down) on the VHCF response of an AlSi10Mg alloy produced through SLM. Ultrasonic tension-compression tests up to 109 cycles were carried out on as-built and heat treated Gaussian specimens with a large loaded volume. Experimental results showed that the investigated heat treatment has a detrimental effect on the VHCF response: VHCF strength reduction is larger than 20% at number of cycles above 108. The microstructural changes induced by the heat treatment (i.e., rupture and spheroidization of the original eutectic silicon network) was shown to be the main reason for the VHCF decrement, thus suggesting that an optimization of the heat treatment parameters is required.</description><subject>Additive manufacturing</subject><subject>Air cooling</subject><subject>AlSi10Mg alloy</subject><subject>Aluminum base alloys</subject><subject>Compression tests</subject><subject>Heat treating</subject><subject>Heat treatment</subject><subject>Materials fatigue</subject><subject>Optimization</subject><subject>Selective Laser Melting (SLM)</subject><subject>Spheroidizing</subject><subject>Very High Cycle Fatigue (VHCF)</subject><issn>0142-1123</issn><issn>1879-3452</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><recordid>eNqFkEtLAzEUhYMoWKu_wYDrGfOaR9yV0odQcVF14SZkZm5qhnZmTDKC_96UilvhwIXLd87lHoRuKUkpofl9m9rW6GB3I6SMUJkSFkXO0ISWhUy4yNg5mhAqWEIp45foyvuWECJJkU3Q-9t6vsQO_NB3HnBv8EqP3lvd4e3mCc_2W0vJ0w77AWp7gM4_4IUxUIcjqrEP0eqjf2_B4A_QAceNDpEM1-jC6L2Hm985Ra_Lxct8nWyeV4_z2SapueAhYaKSOWSNoUUhNJUMSi7zJuNMkrrSRVnyGqDKJcvKJoo1WcUzDjKilagEn6K7U-7g-s8RfFBtP7ounlSMCZGLkpc8UsWJql3vvQOjBmcP2n0rStSxSNWqvyLVsUhFWBSJztnJCfGJLwtO-dpCV0NjXSxCNb39N-MH7el-pQ</recordid><startdate>201907</startdate><enddate>201907</enddate><creator>Tridello, A.</creator><creator>Fiocchi, J.</creator><creator>Biffi, C.A.</creator><creator>Chiandussi, G.</creator><creator>Rossetto, M.</creator><creator>Tuissi, A.</creator><creator>Paolino, D.S.</creator><general>Elsevier Ltd</general><general>Elsevier BV</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>201907</creationdate><title>VHCF response of Gaussian SLM AlSi10Mg specimens: Effect of a stress relief heat treatment</title><author>Tridello, A. ; Fiocchi, J. ; Biffi, C.A. ; Chiandussi, G. ; Rossetto, M. ; Tuissi, A. ; Paolino, D.S.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c343t-24b96e5df1774a192e8396d53290cba7883ceeb69258d58d2d5b353e9192b4b43</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Additive manufacturing</topic><topic>Air cooling</topic><topic>AlSi10Mg alloy</topic><topic>Aluminum base alloys</topic><topic>Compression tests</topic><topic>Heat treating</topic><topic>Heat treatment</topic><topic>Materials fatigue</topic><topic>Optimization</topic><topic>Selective Laser Melting (SLM)</topic><topic>Spheroidizing</topic><topic>Very High Cycle Fatigue (VHCF)</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Tridello, A.</creatorcontrib><creatorcontrib>Fiocchi, J.</creatorcontrib><creatorcontrib>Biffi, C.A.</creatorcontrib><creatorcontrib>Chiandussi, G.</creatorcontrib><creatorcontrib>Rossetto, M.</creatorcontrib><creatorcontrib>Tuissi, A.</creatorcontrib><creatorcontrib>Paolino, D.S.</creatorcontrib><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>Tridello, A.</au><au>Fiocchi, J.</au><au>Biffi, C.A.</au><au>Chiandussi, G.</au><au>Rossetto, M.</au><au>Tuissi, A.</au><au>Paolino, D.S.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>VHCF response of Gaussian SLM AlSi10Mg specimens: Effect of a stress relief heat treatment</atitle><jtitle>International journal of fatigue</jtitle><date>2019-07</date><risdate>2019</risdate><volume>124</volume><spage>435</spage><epage>443</epage><pages>435-443</pages><issn>0142-1123</issn><eissn>1879-3452</eissn><abstract>•Ultrasonic VHCF tests were successfully conducted on AlSi10 SLM Gaussian specimens.•Annealing for two hours at 320 °C is detrimental for the VHCF response.•The evolution of Si particles during the heat treatment affects the VHCF response.•The performed tests extend the knowledge about the VHCF response of AlSi10Mg SLM parts.
The present paper investigates the effect of a stress relief heat treatment (two hours at 320 °C and air cooling down) on the VHCF response of an AlSi10Mg alloy produced through SLM. Ultrasonic tension-compression tests up to 109 cycles were carried out on as-built and heat treated Gaussian specimens with a large loaded volume. Experimental results showed that the investigated heat treatment has a detrimental effect on the VHCF response: VHCF strength reduction is larger than 20% at number of cycles above 108. The microstructural changes induced by the heat treatment (i.e., rupture and spheroidization of the original eutectic silicon network) was shown to be the main reason for the VHCF decrement, thus suggesting that an optimization of the heat treatment parameters is required.</abstract><cop>Kidlington</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.ijfatigue.2019.02.020</doi><tpages>9</tpages></addata></record> |
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subjects | Additive manufacturing Air cooling AlSi10Mg alloy Aluminum base alloys Compression tests Heat treating Heat treatment Materials fatigue Optimization Selective Laser Melting (SLM) Spheroidizing Very High Cycle Fatigue (VHCF) |
title | VHCF response of Gaussian SLM AlSi10Mg specimens: Effect of a stress relief heat treatment |
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