| Thermal shock behaviour and failure mechanism of two-kind Cr coatings on non-planar structure | |
| Hu, Ming1,2,4; Pan, Mengfei1; Shen, Mingli3; Guo, Cean1; Tang, Yueyang1; Yu, Hangjian1 | |
| Corresponding Author | Hu, Ming(minghu_sylu@163.com) |
| 2022-11-01 | |
| Source Publication | ENGINEERING FAILURE ANALYSIS
 |
| ISSN | 1350-6307 |
| Volume | 141Pages:12 |
| Abstract | Cr coating is widely used as a protective coating on the inner and outer surface of industrial equipment. However, current researches on Cr coatings are predominantly conducted on plane specimens, and few works have considered the effect of irregular substrates on coatings. The thermal shock behaviour and failure mechanisms of two-kind Cr coatings prepared by electro-plating and vacuum arc ion plating on non-planar structure at 900 C were investigated. The microstructure and crystalline phases of the two-kind Cr coatings were analysed by scanning electron microscopy, energy dispersive spectrometry, and X-ray diffraction. The results indicate that vacuum arc ion plating Cr coating has better thermal shock resistance. There were two typical damaged regions for both Cr coatings, i.e.the concave corner of groove and the convex corner of land. By analysing the thermal shock damage behaviour of the coatings, it is concluded that fatigue stress, thermal mismatch stress, and the inherent properties of the two-kind Cr coatings are the main reasons for the difference in the overall damage degree, and the temper-ature stress concentration in the concave corner of groove is the cause for the higher degree of thermal shock damage. |
| Keyword | Thermal shock behaviour Cr coating Non-planar structure Electroplating Vacuum arc ion plating |
| Funding Organization | Department of Science and Technology of Liaoning Province ; Basic Research Project for Higher Education Institutions of the Education Department of Liaoning Province |
| DOI | 10.1016/j.engfailanal.2022.106697 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | Department of Science and Technology of Liaoning Province[2021 -BS -162] ; Basic Research Project for Higher Education Institutions of the Education Department of Liaoning Province[LJKZ0273] |
| WOS Research Area | Engineering ; Materials Science |
| WOS Subject | Engineering, Mechanical ; Materials Science, Characterization & Testing |
| WOS ID | WOS:000848499100002 |
| Publisher | PERGAMON-ELSEVIER SCIENCE LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/175029 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Hu, Ming |
| Affiliation | 1.Shenyang Ligong Univ, Sch Equipment Engn, Shenyang, Peoples R China 2.Inner Mongolia North Heavy Ind Grp Co, Baotou, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang, Peoples R China 4.Shenyang Ligong Univ, 6 Nanpingzhong Rd, Shenyang 110159, Peoples R China |
| Recommended Citation GB/T 7714 | Hu, Ming,Pan, Mengfei,Shen, Mingli,et al. Thermal shock behaviour and failure mechanism of two-kind Cr coatings on non-planar structure[J]. ENGINEERING FAILURE ANALYSIS,2022,141:12. |
| APA | Hu, Ming,Pan, Mengfei,Shen, Mingli,Guo, Cean,Tang, Yueyang,&Yu, Hangjian.(2022).Thermal shock behaviour and failure mechanism of two-kind Cr coatings on non-planar structure.ENGINEERING FAILURE ANALYSIS,141,12. |
| MLA | Hu, Ming,et al."Thermal shock behaviour and failure mechanism of two-kind Cr coatings on non-planar structure".ENGINEERING FAILURE ANALYSIS 141(2022):12. |
| Files in This Item: | There are no files associated with this item. | |||||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment