| EFFECTS OF NITROGEN CONTENT ON MICROSTRUCTURE AND MECHANICAL PROPERTY OF ALLOY 690 | |
| Li Shuo; Chen Bo; Ma Yingche; Gao Ming; Liu Kui | |
| Corresponding Author | Liu Kui(kliu@imr.ac.cn) |
| 2011-07-11 | |
| Source Publication | ACTA METALLURGICA SINICA
 |
| ISSN | 0412-1961 |
| Volume | 47Issue:7Pages:816-822 |
| Abstract | The 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. |
| Keyword | Ni-Cr-Fe-N alloy mechanical property carbide precipitation Cr depletion microstructure |
| Funding Organization | National Natural Science Foundation of China |
| DOI | 10.3724/SP.J.1037.2011.00158 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[50901076] |
| WOS Research Area | Metallurgy & Metallurgical Engineering |
| WOS Subject | Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000294980700009 |
| Publisher | SCIENCE PRESS |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/106546 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Liu Kui |
| Affiliation | Chinese 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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