MetallTech Pty Ltd – Metallurgy & Materials
To complement R&T’s lubrication technology functions an association with MetallTech Pty Ltd provides metallurgy and materials services. The principal of MetallTech, Greg Cox BAppSc, has wide-ranging experience in metallurgy and materials consultancy, forensic investigation, testing & industrial services.
| Consultancy & Forensic Investigation • Metallurgical evaluation • Failure analysis • Microscopic examination • Metal, material and dimension verification • Manufacturing technology evaluation • Heat treatment assessment • Corrosion • Welding technology, inspection & procedure qualification Industrial Services • Inspection & expediting, production monitoring & progress reporting • Laboratory and field work |
Testing • Non-Destructive Testing (NDT) – magnetic particle inspection – ultrasonic inspection – eddy current inspection – dye penetrant inspection – radiography – thickness measurement and survey – evaluation – training • Hardness testing • Surface roughness testing • Mechanical testing • Flammability testing |
Contact Details
Glenbrook NSW 2773
| Greg Cox | Principal Metallurgist |
| Mobile | +61 439 711 188 |
| Address | 21 May St, |
Failure Investigation Gallery
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| Reduction gearbox from food processing plant, Fracture by rotating bending fatigue cracking. There were no material defects and failure was attributed to mis-alignment with the extension shaft |
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| Fractured pump shaft – Monel 400 alloy. Failed by stress corrosion cracking as indicated by the microstructure that shows multiple crack pathways and forking. |
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| Case carburised lever. Macro specimen that shows the case carburised layer and the location of Vickers low load hardness testing to determine case depth profile. |
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| Gears & shafts from the auxiliary drives of a ship diesel engine. Asymmetric, multiple failure modes including fatigue fracture, spalling and fretting including false brinelling (adhesive material transfer) on radial mounting faces and common fretting (oxidation/burnishing) on the tapered axial faces.There were no apparent material defects or indications of sub-standard lubrication. Failure was attributed to abnormal mechanical factors. |
