On the creep and phase stability of advanced Ni-base single crystal superalloys
The present article examines microstructure stability and creep resistance of a 5th generation superalloy, which has Cr content at 4.6 wt%, 6.4 wt% Re and 5.0 wt% Ru, in comparison with that of a 4th generation superalloy (3.2 wt% Cr, 5.8 wt% Re and 3.6 wt% Ru). The aim is to elucidate the implicati...
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| Veröffentlicht in: | Materials science & engineering. A, Structural materials : properties, microstructure and processing Structural materials : properties, microstructure and processing, 2008-08, Vol.490 (1), p.445-451 |
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| container_issue | 1 |
| container_start_page | 445 |
| container_title | Materials science & engineering. A, Structural materials : properties, microstructure and processing |
| container_volume | 490 |
| creator | Yeh, An-Chou Sato, Akihiro Kobayashi, Toshiharu Harada, Hiroshi |
| description | The present article examines microstructure stability and creep resistance of a 5th generation superalloy, which has Cr content at 4.6
wt%, 6.4
wt% Re and 5.0
wt% Ru, in comparison with that of a 4th generation superalloy (3.2
wt% Cr, 5.8
wt% Re and 3.6
wt% Ru). The aim is to elucidate the implication of increasing Cr, Re and Ru contents for future alloy developments. Experimental results have concluded that high Re
+
Ru content could promote formation of hexagonal δ phase at 900
°C; additional Cr and Re could enhance the precipitation of TCP phase at 1100
°C. Although an increase in lattice misfit between γ and γ′ in the 5th generation superalloy could strengthen the alloy against creep deformation under conditions at high temperatures (≥1000
°C) and low stresses (≤245
MPa) whilst the microstructural stability remained, the tendency to raft should be avoided during creep at lower temperatures and higher stresses. |
| doi_str_mv | 10.1016/j.msea.2008.02.008 |
| format | Article |
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wt%, 6.4
wt% Re and 5.0
wt% Ru, in comparison with that of a 4th generation superalloy (3.2
wt% Cr, 5.8
wt% Re and 3.6
wt% Ru). The aim is to elucidate the implication of increasing Cr, Re and Ru contents for future alloy developments. Experimental results have concluded that high Re
+
Ru content could promote formation of hexagonal δ phase at 900
°C; additional Cr and Re could enhance the precipitation of TCP phase at 1100
°C. Although an increase in lattice misfit between γ and γ′ in the 5th generation superalloy could strengthen the alloy against creep deformation under conditions at high temperatures (≥1000
°C) and low stresses (≤245
MPa) whilst the microstructural stability remained, the tendency to raft should be avoided during creep at lower temperatures and higher stresses.</description><identifier>ISSN: 0921-5093</identifier><identifier>EISSN: 1873-4936</identifier><identifier>DOI: 10.1016/j.msea.2008.02.008</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Applied sciences ; Creep ; Cross-disciplinary physics: materials science; rheology ; Exact sciences and technology ; Lattice misfit ; Materials science ; Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology ; Metals. Metallurgy ; Phase diagrams and microstructures developed by solidification and solid-solid phase transformations ; Phase instability ; Physics ; Precipitation ; Rafting ; Superalloys</subject><ispartof>Materials science & engineering. A, Structural materials : properties, microstructure and processing, 2008-08, Vol.490 (1), p.445-451</ispartof><rights>2008 Elsevier B.V.</rights><rights>2008 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c427t-608d29c294fc55e39e94108f6d5a13337177b39121394245db01d68f40c769383</citedby><cites>FETCH-LOGICAL-c427t-608d29c294fc55e39e94108f6d5a13337177b39121394245db01d68f40c769383</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.msea.2008.02.008$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=20521719$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Yeh, An-Chou</creatorcontrib><creatorcontrib>Sato, Akihiro</creatorcontrib><creatorcontrib>Kobayashi, Toshiharu</creatorcontrib><creatorcontrib>Harada, Hiroshi</creatorcontrib><title>On the creep and phase stability of advanced Ni-base single crystal superalloys</title><title>Materials science & engineering. A, Structural materials : properties, microstructure and processing</title><description>The present article examines microstructure stability and creep resistance of a 5th generation superalloy, which has Cr content at 4.6
wt%, 6.4
wt% Re and 5.0
wt% Ru, in comparison with that of a 4th generation superalloy (3.2
wt% Cr, 5.8
wt% Re and 3.6
wt% Ru). The aim is to elucidate the implication of increasing Cr, Re and Ru contents for future alloy developments. Experimental results have concluded that high Re
+
Ru content could promote formation of hexagonal δ phase at 900
°C; additional Cr and Re could enhance the precipitation of TCP phase at 1100
°C. Although an increase in lattice misfit between γ and γ′ in the 5th generation superalloy could strengthen the alloy against creep deformation under conditions at high temperatures (≥1000
°C) and low stresses (≤245
MPa) whilst the microstructural stability remained, the tendency to raft should be avoided during creep at lower temperatures and higher stresses.</description><subject>Applied sciences</subject><subject>Creep</subject><subject>Cross-disciplinary physics: materials science; rheology</subject><subject>Exact sciences and technology</subject><subject>Lattice misfit</subject><subject>Materials science</subject><subject>Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology</subject><subject>Metals. Metallurgy</subject><subject>Phase diagrams and microstructures developed by solidification and solid-solid phase transformations</subject><subject>Phase instability</subject><subject>Physics</subject><subject>Precipitation</subject><subject>Rafting</subject><subject>Superalloys</subject><issn>0921-5093</issn><issn>1873-4936</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2008</creationdate><recordtype>article</recordtype><recordid>eNp9kEtPwzAQhC0EEqXwBzj5AreEtZ2XJS6o4iVV9AJny3E21JWbBDutlH9P0lYcOc1hv5nVDCG3DGIGLHvYxNuAOuYARQw8HuWMzFiRiyiRIjsnM5CcRSlIcUmuQtgAAEsgnZHVqqH9GqnxiB3VTUW7tQ5IQ69L62w_0LamutrrxmBFP2xUHq62-XaTaRg5R8OuQ6-da4dwTS5q7QLenHROvl6ePxdv0XL1-r54WkYm4XkfZVBUXBouk9qkKQqJMmFQ1FmVaiaEyFmel0IyzoRMeJJWJbAqK-oETJ5JUYg5uT_mdr792WHo1dYGg87pBttdUOJghgnkR9D4NgSPteq83Wo_KAZq2k5t1LSdmrZTwBUcTHendB2MdrUf69vw5-SQcpYzOXKPRw7HqnuLXgVjcZrKejS9qlr735tfy8GDHA</recordid><startdate>20080825</startdate><enddate>20080825</enddate><creator>Yeh, An-Chou</creator><creator>Sato, Akihiro</creator><creator>Kobayashi, Toshiharu</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>20080825</creationdate><title>On the creep and phase stability of advanced Ni-base single crystal superalloys</title><author>Yeh, An-Chou ; Sato, Akihiro ; Kobayashi, Toshiharu ; Harada, Hiroshi</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c427t-608d29c294fc55e39e94108f6d5a13337177b39121394245db01d68f40c769383</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2008</creationdate><topic>Applied sciences</topic><topic>Creep</topic><topic>Cross-disciplinary physics: materials science; rheology</topic><topic>Exact sciences and technology</topic><topic>Lattice misfit</topic><topic>Materials science</topic><topic>Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology</topic><topic>Metals. Metallurgy</topic><topic>Phase diagrams and microstructures developed by solidification and solid-solid phase transformations</topic><topic>Phase instability</topic><topic>Physics</topic><topic>Precipitation</topic><topic>Rafting</topic><topic>Superalloys</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Yeh, An-Chou</creatorcontrib><creatorcontrib>Sato, Akihiro</creatorcontrib><creatorcontrib>Kobayashi, Toshiharu</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>Yeh, An-Chou</au><au>Sato, Akihiro</au><au>Kobayashi, Toshiharu</au><au>Harada, Hiroshi</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>On the creep and phase stability of advanced Ni-base single crystal superalloys</atitle><jtitle>Materials science & engineering. A, Structural materials : properties, microstructure and processing</jtitle><date>2008-08-25</date><risdate>2008</risdate><volume>490</volume><issue>1</issue><spage>445</spage><epage>451</epage><pages>445-451</pages><issn>0921-5093</issn><eissn>1873-4936</eissn><abstract>The present article examines microstructure stability and creep resistance of a 5th generation superalloy, which has Cr content at 4.6
wt%, 6.4
wt% Re and 5.0
wt% Ru, in comparison with that of a 4th generation superalloy (3.2
wt% Cr, 5.8
wt% Re and 3.6
wt% Ru). The aim is to elucidate the implication of increasing Cr, Re and Ru contents for future alloy developments. Experimental results have concluded that high Re
+
Ru content could promote formation of hexagonal δ phase at 900
°C; additional Cr and Re could enhance the precipitation of TCP phase at 1100
°C. Although an increase in lattice misfit between γ and γ′ in the 5th generation superalloy could strengthen the alloy against creep deformation under conditions at high temperatures (≥1000
°C) and low stresses (≤245
MPa) whilst the microstructural stability remained, the tendency to raft should be avoided during creep at lower temperatures and higher stresses.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/j.msea.2008.02.008</doi><tpages>7</tpages></addata></record> |
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| ispartof | Materials science & engineering. A, Structural materials : properties, microstructure and processing, 2008-08, Vol.490 (1), p.445-451 |
| issn | 0921-5093 1873-4936 |
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| source | Access via ScienceDirect (Elsevier) |
| subjects | Applied sciences Creep Cross-disciplinary physics: materials science rheology Exact sciences and technology Lattice misfit Materials science Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology Metals. Metallurgy Phase diagrams and microstructures developed by solidification and solid-solid phase transformations Phase instability Physics Precipitation Rafting Superalloys |
| title | On the creep and phase stability of advanced Ni-base single crystal superalloys |
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