Tensile and fatigue strength of SUS304 stainless steel repaired by a high velocity oxy-fuel thermal spraying
Tensile and fatigue tests were conducted on type 304 stainless steel plate-shaped specimens repaired by High Velocity Oxy Fuel (HVOF) spraying. Specimen surfaces were machined for repair into trapezoid with the same depth, the same length, and various slope angles (called here cutting angles). Durin...
| Main Authors: | , |
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| Format: | Article |
| Language: | Japanese |
| Published: |
The Japan Society of Mechanical Engineers
2018-06-01
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| Series: | Nihon Kikai Gakkai ronbunshu |
| Subjects: | |
| Online Access: | https://www.jstage.jst.go.jp/article/transjsme/84/863/84_18-00016/_pdf/-char/en |
| _version_ | 1811317843467173888 |
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| author | Masayuki ARAI Tatsuo SUIDZU |
| author_facet | Masayuki ARAI Tatsuo SUIDZU |
| author_sort | Masayuki ARAI |
| collection | DOAJ |
| description | Tensile and fatigue tests were conducted on type 304 stainless steel plate-shaped specimens repaired by High Velocity Oxy Fuel (HVOF) spraying. Specimen surfaces were machined for repair into trapezoid with the same depth, the same length, and various slope angles (called here cutting angles). During tensile tests, damage evolution in the repaired part was continuously monitored under increasing load. Quantitative evaluation of the relationship between the strain gauge attached to the repaired part surface and the cross-head displacement was performed. In fatigue tests, influence of the repaired shape on damage evolution was studied, and obtained fatigue lives were compared between the cutting angles. According to tensile testing results, crack initiation strain values increase with cutting angles. At the same time, residual stresses were mostly compressive and almost independent from cutting angles, thus positively affecting the magnitude of fatigue strength. Fatigue test results indicated that specimens repaired with a cutting angle of 50°possess a superior fatigue life. The results showed that the HVOF spraying can potentially replace welding repair. |
| first_indexed | 2024-04-13T12:15:18Z |
| format | Article |
| id | doaj.art-dc68a8935bcf4460a030d65df2f694ae |
| institution | Directory Open Access Journal |
| issn | 2187-9761 |
| language | Japanese |
| last_indexed | 2024-04-13T12:15:18Z |
| publishDate | 2018-06-01 |
| publisher | The Japan Society of Mechanical Engineers |
| record_format | Article |
| series | Nihon Kikai Gakkai ronbunshu |
| spelling | doaj.art-dc68a8935bcf4460a030d65df2f694ae2022-12-22T02:47:23ZjpnThe Japan Society of Mechanical EngineersNihon Kikai Gakkai ronbunshu2187-97612018-06-018486318-0001618-0001610.1299/transjsme.18-00016transjsmeTensile and fatigue strength of SUS304 stainless steel repaired by a high velocity oxy-fuel thermal sprayingMasayuki ARAI0Tatsuo SUIDZU1Department of Mechanical Engineering, Tokyo University of ScienceR&D Center, TOCALO Co. Ltd.Tensile and fatigue tests were conducted on type 304 stainless steel plate-shaped specimens repaired by High Velocity Oxy Fuel (HVOF) spraying. Specimen surfaces were machined for repair into trapezoid with the same depth, the same length, and various slope angles (called here cutting angles). During tensile tests, damage evolution in the repaired part was continuously monitored under increasing load. Quantitative evaluation of the relationship between the strain gauge attached to the repaired part surface and the cross-head displacement was performed. In fatigue tests, influence of the repaired shape on damage evolution was studied, and obtained fatigue lives were compared between the cutting angles. According to tensile testing results, crack initiation strain values increase with cutting angles. At the same time, residual stresses were mostly compressive and almost independent from cutting angles, thus positively affecting the magnitude of fatigue strength. Fatigue test results indicated that specimens repaired with a cutting angle of 50°possess a superior fatigue life. The results showed that the HVOF spraying can potentially replace welding repair.https://www.jstage.jst.go.jp/article/transjsme/84/863/84_18-00016/_pdf/-char/enthermal sprayinghvofrepairingconicralytensile strengthcrack initiationfatigue life |
| spellingShingle | Masayuki ARAI Tatsuo SUIDZU Tensile and fatigue strength of SUS304 stainless steel repaired by a high velocity oxy-fuel thermal spraying Nihon Kikai Gakkai ronbunshu thermal spraying hvof repairing conicraly tensile strength crack initiation fatigue life |
| title | Tensile and fatigue strength of SUS304 stainless steel repaired by a high velocity oxy-fuel thermal spraying |
| title_full | Tensile and fatigue strength of SUS304 stainless steel repaired by a high velocity oxy-fuel thermal spraying |
| title_fullStr | Tensile and fatigue strength of SUS304 stainless steel repaired by a high velocity oxy-fuel thermal spraying |
| title_full_unstemmed | Tensile and fatigue strength of SUS304 stainless steel repaired by a high velocity oxy-fuel thermal spraying |
| title_short | Tensile and fatigue strength of SUS304 stainless steel repaired by a high velocity oxy-fuel thermal spraying |
| title_sort | tensile and fatigue strength of sus304 stainless steel repaired by a high velocity oxy fuel thermal spraying |
| topic | thermal spraying hvof repairing conicraly tensile strength crack initiation fatigue life |
| url | https://www.jstage.jst.go.jp/article/transjsme/84/863/84_18-00016/_pdf/-char/en |
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