| Effect of nanocrystallization on hot corrosion behavior of K38G alloy with sulfate deposit at 900 degrees C | |
| Geng, SJ; Zhu, SL; Wang, FH; Wu, WT | |
| Corresponding Author | Geng, SJ(sgeng@tntech.edu) |
| 2004 | |
| Source Publication | HIGH TEMPERATURE CORROSION AND PROTECTION OF MATERIALS 6, PRT 1 AND 2, PROCEEDINGS
 |
| ISSN | 0255-5476 |
| Volume | 461-464Pages:153-160 |
| Abstract | A sputtered nanocrystalline coating on a coupon of the same K38G alloy was produced by magnetron sputtering. The effect of nanocrystallization on the hot corrosion behavior of K38G alloy with sulfate film deposit in air at 900degreesC was investigated. Surface and cross-sectional morphologies of the oxide formed were examined by SEM/EDX (scanning electron microscopy and energy-dispersive X-ray analysis) and EPMA (electron probe microanalysis). The results indicated that the mass gain of uncoated cast alloy decreased with the increase of the thickness of the sulfate film. Internal sulfidation occurred in the uncoated cast K38G alloy with 0.8 and 3.0mg/cm(2) of 75wt.%Na2SO4+ 25wt.%K2SO4. However, the mass gain for the coating increased with the increasing amount of sulfate deposit. In the case of the coating with a sulfate deposit of 0.8mg/cm(2), internal sulfidation was not observed. Although internal sulfides still formed for the coating with a sulfate deposit of 3.0mg/cm(2), the hot corrosion resistance of K38G alloy was clearly improved through nanocrystallization. The relevant hot corrosion mechanism is discussed. |
| Keyword | sputtering K38G alloy nanocrystalline coating sulfate deposit hot corrosion |
| Indexed By | SCI |
| Language | 英语 |
| WOS Research Area | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000223339700020 |
| Publisher | TRANS TECH PUBLICATIONS LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/81859 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Geng, SJ |
| Affiliation | Chinese Acad Sci, Inst Met Res, State Key Lab Corros & Protect, Shenyang 110016, Peoples R China |
| Recommended Citation GB/T 7714 | Geng, SJ,Zhu, SL,Wang, FH,et al. Effect of nanocrystallization on hot corrosion behavior of K38G alloy with sulfate deposit at 900 degrees C[J]. HIGH TEMPERATURE CORROSION AND PROTECTION OF MATERIALS 6, PRT 1 AND 2, PROCEEDINGS,2004,461-464:153-160. |
| APA | Geng, SJ,Zhu, SL,Wang, FH,&Wu, WT.(2004).Effect of nanocrystallization on hot corrosion behavior of K38G alloy with sulfate deposit at 900 degrees C.HIGH TEMPERATURE CORROSION AND PROTECTION OF MATERIALS 6, PRT 1 AND 2, PROCEEDINGS,461-464,153-160. |
| MLA | Geng, SJ,et al."Effect of nanocrystallization on hot corrosion behavior of K38G alloy with sulfate deposit at 900 degrees C".HIGH TEMPERATURE CORROSION AND PROTECTION OF MATERIALS 6, PRT 1 AND 2, PROCEEDINGS 461-464(2004):153-160. |
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