Please use this identifier to cite or link to this item: https://ir.swu.ac.th/jspui/handle/123456789/12869
ชื่อเรื่อง: Micro-crack analyses of chromium steel JIS-SCr 420 for helical gear transmission
ผู้แต่ง: Boonmag V.
Wisesook O.
Phukaoluan A.
Pluphrach G.
Keywords: Carbides
Chemical analysis
Chromium steel
Cracks
Energy dispersive spectroscopy
Gear teeth
Martensitic stainless steel
Power transmission
Scanning electron microscopy
Vickers hardness
Chemical compositions
Fatigue fracture
Fracture characteristics
Helical gear transmissions
Microstructural analysis
Oxide inclusion
Surface layers
Test machine
Helical gears
วันที่เผยแพร่: 2018
บทคัดย่อ: This research aims to investigate micro-crack on a failed for helical gear transmission which was to adjust the engine to increased horsepower. The helical gears made are from chromium steel JIS-SCr 420. The spectrophotometer test machine was used to detect chemical composition, Mechanical properties were evaluated by Vickers hardness and microstructural analysis with an optical microscope, which the crack of the surface layer and energy dispersive spectroscopy using a scanning electron microscope. The results showed that the fracture characteristic of the helical gear's surface was expected to beach marks and break away. It can be seen that the mixing failure area of oxide inclusion with carbide surrounding before the liquid state of material will be solidified which caused the failure cause of this helical gear. The summary analysis results can be accorded with the assumption of this research and which help prolong service life of the component. © 2018 Trans Tech Publications.
URI: https://ir.swu.ac.th/jspui/handle/123456789/12869
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85054826113&doi=10.4028%2fwww.scientific.net%2fKEM.777.294&partnerID=40&md5=e2c81e69f735c574285327ec6e3d60fc
ISSN: 10139826
Appears in Collections:Scopus 1983-2021

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