| Grain boundary oxidation behavior of Ni15Cr alloy in high temperature carbon dioxide | |
| Yang, Liujie1; Feng, Xingyu1; Xie, Jiayu1; Qian, Hongchen1; Hao, Xianchao2,3; Kuang, Wenjun1 | |
| Corresponding Author | Kuang, Wenjun(wjkuang66@gmail.com) |
| 2022-11-01 | |
| Source Publication | SCRIPTA MATERIALIA
 |
| ISSN | 1359-6462 |
| Volume | 220Pages:6 |
| Abstract | The grain boundary (GB) corrosion behavior of Ni15Cr alloy in 650celcius/1bar CO2 gas was investigated. The oxidation behavior of coherent twin boundary is similar to that of grain matrix due to the immobility of Cr. However, the incoherent twin boundary is prone to preferential intergranular oxidation due to the limited Cr diffusivity and the ingress of oxygen. Likewise, low angle GB is also susceptible to intergranular oxidation because Cr diffusion is not fast enough although it can induce GB migration and result in a protective scale at oxide tip. In contrast, random high angle GB is immune to intergranular oxidation because Cr can diffuse quickly to form a protective scale above GB with the formation of a large GB migration zone. Therefore, the oxidation behavior of GB is closely related to the diffusivity of Cr along GB which is determined by the GB structure. |
| Keyword | Nickel alloy Scanning electron microscopy (SEM) Grain boundary structure Grain boundary migration Grain boundary diffusion |
| Funding Organization | Development Program of the Ministry of Science and Technology of China ; National Natural Science Foundation of China ; Young Talent Support Plan of Xi'an Jiaotong University |
| DOI | 10.1016/j.scriptamat.2022.114935 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | Development Program of the Ministry of Science and Technology of China[2019YFA0209900] ; National Natural Science Foundation of China[51971172] ; Young Talent Support Plan of Xi'an Jiaotong University |
| WOS Research Area | Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000836099500004 |
| Publisher | PERGAMON-ELSEVIER SCIENCE LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/174591 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Kuang, Wenjun |
| Affiliation | 1.Xi An Jiao Tong Univ, Ctr Adv Mat Performance Nanoscale CAMP Nano, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China 2.Chinese Acad Sci, Inst Met Res, CAS Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China |
| Recommended Citation GB/T 7714 | Yang, Liujie,Feng, Xingyu,Xie, Jiayu,et al. Grain boundary oxidation behavior of Ni15Cr alloy in high temperature carbon dioxide[J]. SCRIPTA MATERIALIA,2022,220:6. |
| APA | Yang, Liujie,Feng, Xingyu,Xie, Jiayu,Qian, Hongchen,Hao, Xianchao,&Kuang, Wenjun.(2022).Grain boundary oxidation behavior of Ni15Cr alloy in high temperature carbon dioxide.SCRIPTA MATERIALIA,220,6. |
| MLA | Yang, Liujie,et al."Grain boundary oxidation behavior of Ni15Cr alloy in high temperature carbon dioxide".SCRIPTA MATERIALIA 220(2022):6. |
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