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EFFECTS OF NITROGEN CONTENT ON MICROSTRUCTURE AND MECHANICAL PROPERTY OF ALLOY 690
Li Shuo; Chen Bo; Ma Yingche; Gao Ming; Liu Kui
Corresponding AuthorLiu Kui(kliu@imr.ac.cn)
2011-07-11
Source PublicationACTA METALLURGICA SINICA
ISSN0412-1961
Volume47Issue:7Pages:816-822
AbstractThe microstructure and mechanical property at room temperature of Ni-30Cr-10Fe-xN (x = 0.001, 0.011, 0.018, 0.030, mass fraction, %) base alloy 690 were investigated. The OM observation shows that the amounts of precipitated nitrides and the annealing twins in the matrix increase with more nitrogen added in the alloy. The carbide precipitation along boundary and the chromium depletion near the grain boundary are modified by nitrogen addition, carbide becomes less and chromium depletion is mitigated. The tensile test result shows that both of the yield and tensile strengths are increased by about 50 MPa when nitrogen content increased from 0.001% to 0.030%, while the ductility lowers a little. The fractographs exhibit typical ductile dimple pattern and the sizes of the dimples reduce with increasing nitrogen content in the alloy.
KeywordNi-Cr-Fe-N alloy mechanical property carbide precipitation Cr depletion microstructure
Funding OrganizationNational Natural Science Foundation of China
DOI10.3724/SP.J.1037.2011.00158
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[50901076]
WOS Research AreaMetallurgy & Metallurgical Engineering
WOS SubjectMetallurgy & Metallurgical Engineering
WOS IDWOS:000294980700009
PublisherSCIENCE PRESS
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/106546
Collection中国科学院金属研究所
Corresponding AuthorLiu Kui
AffiliationChinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Li Shuo,Chen Bo,Ma Yingche,et al. EFFECTS OF NITROGEN CONTENT ON MICROSTRUCTURE AND MECHANICAL PROPERTY OF ALLOY 690[J]. ACTA METALLURGICA SINICA,2011,47(7):816-822.
APA Li Shuo,Chen Bo,Ma Yingche,Gao Ming,&Liu Kui.(2011).EFFECTS OF NITROGEN CONTENT ON MICROSTRUCTURE AND MECHANICAL PROPERTY OF ALLOY 690.ACTA METALLURGICA SINICA,47(7),816-822.
MLA Li Shuo,et al."EFFECTS OF NITROGEN CONTENT ON MICROSTRUCTURE AND MECHANICAL PROPERTY OF ALLOY 690".ACTA METALLURGICA SINICA 47.7(2011):816-822.
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