Fatigue crack growth behavior of a newly developed Ni–Co-base superalloy TMW-2 at elevated temperatures
► The fatigue crack growth rates increased significantly with increasing the temperature. ► Load ratio had a little (at 400°C) or moderate (at 650 and 725°C) influence on the fatigue crack growth rates. ► The load ratio effects were successfully accounted for by applying the Walker model. ► The frac...
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| Veröffentlicht in: | Materials science & engineering. A, Structural materials : properties, microstructure and processing Structural materials : properties, microstructure and processing, 2012-08, Vol.552, p.464-471 |
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| container_title | Materials science & engineering. A, Structural materials : properties, microstructure and processing |
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| creator | Zhong, Zhihong Gu, Yuefeng Yuan, Yong Cui, Chuanyong Yokokawa, Tadaharu Harada, Hiroshi |
| description | ► The fatigue crack growth rates increased significantly with increasing the temperature. ► Load ratio had a little (at 400°C) or moderate (at 650 and 725°C) influence on the fatigue crack growth rates. ► The load ratio effects were successfully accounted for by applying the Walker model. ► The fracture mode was transgranular at 400°C and was mixed transgranular and intergranular at 650 and 725°C.
Fatigue crack growth (FCG) rates of a new superalloy TMW-2 in air was studied by a fracture mechanics test method. Compact tension specimens were tested under load control with a triangular wave form to investigate the effects of temperature (400, 650, and 725°C) and load ratio (0.05 and 0.5) on FCG rates. The results showed that the FCG rates increased significantly with increasing the temperature. Compared with the creep effects, the results showed that the degradation of mechanical properties and the oxidation assisted crack growth may dominate the FCG rates of TMW-2 at elevated temperatures. Load ratio had a little (at 400°C) or moderate (at 650 and 725°C) influence on the FCG rates, which increased as the load ratio increased. The load ratio effects were successfully accounted for by applying the Walker model. The fractographic observations showed that the fracture mode was transgranular at 400°C and was mixed transgranular and intergranular at 650 and 725°C. |
| doi_str_mv | 10.1016/j.msea.2012.05.071 |
| format | Article |
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Fatigue crack growth (FCG) rates of a new superalloy TMW-2 in air was studied by a fracture mechanics test method. Compact tension specimens were tested under load control with a triangular wave form to investigate the effects of temperature (400, 650, and 725°C) and load ratio (0.05 and 0.5) on FCG rates. The results showed that the FCG rates increased significantly with increasing the temperature. Compared with the creep effects, the results showed that the degradation of mechanical properties and the oxidation assisted crack growth may dominate the FCG rates of TMW-2 at elevated temperatures. Load ratio had a little (at 400°C) or moderate (at 650 and 725°C) influence on the FCG rates, which increased as the load ratio increased. The load ratio effects were successfully accounted for by applying the Walker model. The fractographic observations showed that the fracture mode was transgranular at 400°C and was mixed transgranular and intergranular at 650 and 725°C.</description><identifier>ISSN: 0921-5093</identifier><identifier>EISSN: 1873-4936</identifier><identifier>DOI: 10.1016/j.msea.2012.05.071</identifier><language>eng</language><publisher>Kidlington: Elsevier B.V</publisher><subject>Applied sciences ; Corrosion ; Corrosion mechanisms ; Crack propagation ; Creep ; Creep (materials) ; Elasticity. Plasticity ; Exact sciences and technology ; Fatigue crack growth ; Fatigue failure ; Fracture mechanics ; Fractures ; High temperature ; Load ratio effect ; Mechanical properties ; Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology ; Metals. Metallurgy ; Microstructure ; Ni-base superalloys ; Superalloys ; Temperature effect</subject><ispartof>Materials science & engineering. A, Structural materials : properties, microstructure and processing, 2012-08, Vol.552, p.464-471</ispartof><rights>2012 Elsevier B.V.</rights><rights>2015 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c363t-15617eb94325f2383d7c903edb0308c33a65ec70e89986188a273b48b01c321a3</citedby><cites>FETCH-LOGICAL-c363t-15617eb94325f2383d7c903edb0308c33a65ec70e89986188a273b48b01c321a3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0921509312007770$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65306</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=26098423$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Zhong, Zhihong</creatorcontrib><creatorcontrib>Gu, Yuefeng</creatorcontrib><creatorcontrib>Yuan, Yong</creatorcontrib><creatorcontrib>Cui, Chuanyong</creatorcontrib><creatorcontrib>Yokokawa, Tadaharu</creatorcontrib><creatorcontrib>Harada, Hiroshi</creatorcontrib><title>Fatigue crack growth behavior of a newly developed Ni–Co-base superalloy TMW-2 at elevated temperatures</title><title>Materials science & engineering. A, Structural materials : properties, microstructure and processing</title><description>► The fatigue crack growth rates increased significantly with increasing the temperature. ► Load ratio had a little (at 400°C) or moderate (at 650 and 725°C) influence on the fatigue crack growth rates. ► The load ratio effects were successfully accounted for by applying the Walker model. ► The fracture mode was transgranular at 400°C and was mixed transgranular and intergranular at 650 and 725°C.
Fatigue crack growth (FCG) rates of a new superalloy TMW-2 in air was studied by a fracture mechanics test method. Compact tension specimens were tested under load control with a triangular wave form to investigate the effects of temperature (400, 650, and 725°C) and load ratio (0.05 and 0.5) on FCG rates. The results showed that the FCG rates increased significantly with increasing the temperature. Compared with the creep effects, the results showed that the degradation of mechanical properties and the oxidation assisted crack growth may dominate the FCG rates of TMW-2 at elevated temperatures. Load ratio had a little (at 400°C) or moderate (at 650 and 725°C) influence on the FCG rates, which increased as the load ratio increased. The load ratio effects were successfully accounted for by applying the Walker model. The fractographic observations showed that the fracture mode was transgranular at 400°C and was mixed transgranular and intergranular at 650 and 725°C.</description><subject>Applied sciences</subject><subject>Corrosion</subject><subject>Corrosion mechanisms</subject><subject>Crack propagation</subject><subject>Creep</subject><subject>Creep (materials)</subject><subject>Elasticity. Plasticity</subject><subject>Exact sciences and technology</subject><subject>Fatigue crack growth</subject><subject>Fatigue failure</subject><subject>Fracture mechanics</subject><subject>Fractures</subject><subject>High temperature</subject><subject>Load ratio effect</subject><subject>Mechanical properties</subject><subject>Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology</subject><subject>Metals. Metallurgy</subject><subject>Microstructure</subject><subject>Ni-base superalloys</subject><subject>Superalloys</subject><subject>Temperature effect</subject><issn>0921-5093</issn><issn>1873-4936</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><recordid>eNp9kMFu1DAQhi0EEkvhBTj5gsQl6dhOHEfiglYUkFq4FHG0Js6k9eJdL7az1d54B96QJyGrrThymsN8_z-aj7HXAmoBQl9u6m0mrCUIWUNbQyeesJUwnaqaXumnbAW9FFULvXrOXuS8AQDRQLti_gqLv5uJu4TuB79L8aHc84Hu8eBj4nHiyHf0EI58pAOFuKeRf_F_fv1ex2rATDzPe0oYQjzy25vvleRYOAU6YFnIQtvTtsyJ8kv2bMKQ6dXjvGDfrj7crj9V118_fl6_v66c0qpUotWio6FvlGwnqYwaO9eDonEABcYphbol1wGZvjdaGIOyU0NjBhBOSYHqgr099-5T_DlTLnbrs6MQcEdxzlboTijdgYYFlWfUpZhzosnuk99iOloB9uTVbuzJqz15tdDaxesSevPYj9lhmBLunM__klJDbxqpFu7dmaPl2YOnZLPztHM0-kSu2DH6_535C0FVjkM</recordid><startdate>20120830</startdate><enddate>20120830</enddate><creator>Zhong, Zhihong</creator><creator>Gu, Yuefeng</creator><creator>Yuan, Yong</creator><creator>Cui, Chuanyong</creator><creator>Yokokawa, Tadaharu</creator><creator>Harada, Hiroshi</creator><general>Elsevier B.V</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>20120830</creationdate><title>Fatigue crack growth behavior of a newly developed Ni–Co-base superalloy TMW-2 at elevated temperatures</title><author>Zhong, Zhihong ; Gu, Yuefeng ; Yuan, Yong ; Cui, Chuanyong ; Yokokawa, Tadaharu ; Harada, Hiroshi</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c363t-15617eb94325f2383d7c903edb0308c33a65ec70e89986188a273b48b01c321a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Applied sciences</topic><topic>Corrosion</topic><topic>Corrosion mechanisms</topic><topic>Crack propagation</topic><topic>Creep</topic><topic>Creep (materials)</topic><topic>Elasticity. Plasticity</topic><topic>Exact sciences and technology</topic><topic>Fatigue crack growth</topic><topic>Fatigue failure</topic><topic>Fracture mechanics</topic><topic>Fractures</topic><topic>High temperature</topic><topic>Load ratio effect</topic><topic>Mechanical properties</topic><topic>Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology</topic><topic>Metals. Metallurgy</topic><topic>Microstructure</topic><topic>Ni-base superalloys</topic><topic>Superalloys</topic><topic>Temperature effect</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zhong, Zhihong</creatorcontrib><creatorcontrib>Gu, Yuefeng</creatorcontrib><creatorcontrib>Yuan, Yong</creatorcontrib><creatorcontrib>Cui, Chuanyong</creatorcontrib><creatorcontrib>Yokokawa, Tadaharu</creatorcontrib><creatorcontrib>Harada, Hiroshi</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>Materials science & engineering. A, Structural materials : properties, microstructure and processing</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Zhong, Zhihong</au><au>Gu, Yuefeng</au><au>Yuan, Yong</au><au>Cui, Chuanyong</au><au>Yokokawa, Tadaharu</au><au>Harada, Hiroshi</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Fatigue crack growth behavior of a newly developed Ni–Co-base superalloy TMW-2 at elevated temperatures</atitle><jtitle>Materials science & engineering. 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Fatigue crack growth (FCG) rates of a new superalloy TMW-2 in air was studied by a fracture mechanics test method. Compact tension specimens were tested under load control with a triangular wave form to investigate the effects of temperature (400, 650, and 725°C) and load ratio (0.05 and 0.5) on FCG rates. The results showed that the FCG rates increased significantly with increasing the temperature. Compared with the creep effects, the results showed that the degradation of mechanical properties and the oxidation assisted crack growth may dominate the FCG rates of TMW-2 at elevated temperatures. Load ratio had a little (at 400°C) or moderate (at 650 and 725°C) influence on the FCG rates, which increased as the load ratio increased. The load ratio effects were successfully accounted for by applying the Walker model. The fractographic observations showed that the fracture mode was transgranular at 400°C and was mixed transgranular and intergranular at 650 and 725°C.</abstract><cop>Kidlington</cop><pub>Elsevier B.V</pub><doi>10.1016/j.msea.2012.05.071</doi><tpages>8</tpages></addata></record> |
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| ispartof | Materials science & engineering. A, Structural materials : properties, microstructure and processing, 2012-08, Vol.552, p.464-471 |
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| source | Elsevier ScienceDirect Journals |
| subjects | Applied sciences Corrosion Corrosion mechanisms Crack propagation Creep Creep (materials) Elasticity. Plasticity Exact sciences and technology Fatigue crack growth Fatigue failure Fracture mechanics Fractures High temperature Load ratio effect Mechanical properties Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology Metals. Metallurgy Microstructure Ni-base superalloys Superalloys Temperature effect |
| title | Fatigue crack growth behavior of a newly developed Ni–Co-base superalloy TMW-2 at elevated temperatures |
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