Measurement of quenching strain in paraffin drop test modelling thermal spray process
In order to investigate the fundamental process of residual stress development in thermal barrier coating during thermal spray, a model experiment was conducted using a paraffin wax. Melted paraffin wax was dropped onto a circular substrate of type 430 stainless steel, and strain and temperature wer...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | Japanese |
| Published: |
The Japan Society of Mechanical Engineers
2017-11-01
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| Series: | Nihon Kikai Gakkai ronbunshu |
| Subjects: | |
| Online Access: | https://www.jstage.jst.go.jp/article/transjsme/83/856/83_17-00377/_pdf/-char/en |
| _version_ | 1828188707446849536 |
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| author | Ayumi AMANO Motoki SAKAGUCHI Yu KUROKAWA Yoshifumi OKAJIMA Hirotsugu INOUE |
| author_facet | Ayumi AMANO Motoki SAKAGUCHI Yu KUROKAWA Yoshifumi OKAJIMA Hirotsugu INOUE |
| author_sort | Ayumi AMANO |
| collection | DOAJ |
| description | In order to investigate the fundamental process of residual stress development in thermal barrier coating during thermal spray, a model experiment was conducted using a paraffin wax. Melted paraffin wax was dropped onto a circular substrate of type 430 stainless steel, and strain and temperature were measured on the back surface of substrate. The model experiment revealed that tensile quenching strain was developed during solidification and adhesion process and it was increased with the number of droplets. Development of the quenching strain and failure of paraffin coating were significantly influenced by substrate temperature. The lower substrate temperature caused the larger quenching strain, and facilitated cracking, delamination and debonding of the coating. Findings in a series of the model experiments showed some similarities to actual phenomena during thermal spray, and will provide a helpful suggestion to optimize various process parameters in thermal spray. |
| first_indexed | 2024-04-12T07:53:23Z |
| format | Article |
| id | doaj.art-91ddd937fbab4cb3a152f35ede8d5b77 |
| institution | Directory Open Access Journal |
| issn | 2187-9761 |
| language | Japanese |
| last_indexed | 2024-04-12T07:53:23Z |
| publishDate | 2017-11-01 |
| publisher | The Japan Society of Mechanical Engineers |
| record_format | Article |
| series | Nihon Kikai Gakkai ronbunshu |
| spelling | doaj.art-91ddd937fbab4cb3a152f35ede8d5b772022-12-22T03:41:32ZjpnThe Japan Society of Mechanical EngineersNihon Kikai Gakkai ronbunshu2187-97612017-11-018385617-0037717-0037710.1299/transjsme.17-00377transjsmeMeasurement of quenching strain in paraffin drop test modelling thermal spray processAyumi AMANO0Motoki SAKAGUCHI1Yu KUROKAWA2Yoshifumi OKAJIMA3Hirotsugu INOUE4Department of Mechanical Engineering, Tokyo Institute of TechnologyDepartment of Mechanical Engineering, Tokyo Institute of TechnologyDepartment of Mechanical Engineering, Tokyo Institute of TechnologyMitsubishi Heavy Industries, ltd.Department of Mechanical Engineering, Tokyo Institute of TechnologyIn order to investigate the fundamental process of residual stress development in thermal barrier coating during thermal spray, a model experiment was conducted using a paraffin wax. Melted paraffin wax was dropped onto a circular substrate of type 430 stainless steel, and strain and temperature were measured on the back surface of substrate. The model experiment revealed that tensile quenching strain was developed during solidification and adhesion process and it was increased with the number of droplets. Development of the quenching strain and failure of paraffin coating were significantly influenced by substrate temperature. The lower substrate temperature caused the larger quenching strain, and facilitated cracking, delamination and debonding of the coating. Findings in a series of the model experiments showed some similarities to actual phenomena during thermal spray, and will provide a helpful suggestion to optimize various process parameters in thermal spray.https://www.jstage.jst.go.jp/article/transjsme/83/856/83_17-00377/_pdf/-char/enthermal barrier coatingmodel experimentparaffin waxresidual strainquenching straincrackingdebondingdelamination |
| spellingShingle | Ayumi AMANO Motoki SAKAGUCHI Yu KUROKAWA Yoshifumi OKAJIMA Hirotsugu INOUE Measurement of quenching strain in paraffin drop test modelling thermal spray process Nihon Kikai Gakkai ronbunshu thermal barrier coating model experiment paraffin wax residual strain quenching strain cracking debonding delamination |
| title | Measurement of quenching strain in paraffin drop test modelling thermal spray process |
| title_full | Measurement of quenching strain in paraffin drop test modelling thermal spray process |
| title_fullStr | Measurement of quenching strain in paraffin drop test modelling thermal spray process |
| title_full_unstemmed | Measurement of quenching strain in paraffin drop test modelling thermal spray process |
| title_short | Measurement of quenching strain in paraffin drop test modelling thermal spray process |
| title_sort | measurement of quenching strain in paraffin drop test modelling thermal spray process |
| topic | thermal barrier coating model experiment paraffin wax residual strain quenching strain cracking debonding delamination |
| url | https://www.jstage.jst.go.jp/article/transjsme/83/856/83_17-00377/_pdf/-char/en |
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