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Failure Investigation & Consultancy
With over 25 years’ in the industry and state-of-the-art facilities, our scientists are able to investigate complex issues you are encountering and provide easy-to-read reports to assist in preventing reoccurrence.
Our reports are tailored to the client’s needs. Each report includes short conclusions backed up by data, explanations and photographs to give clarity to often complex issues.
At SureScreen we pride ourselves on efficient turnaround times. Our clients receive crucial updates on the investigation even before the initial report is sent.
25 Years’ Experience
Our vast experience means we can recommend the best way forward reducing time, costs and unnecessary work.
Determining the modes of failure, degradation, fracture or loss in performance, which ultimately can assist in the identification of the root cause.
Legal support in the fields of material science and curfew tagging.
Site visits for sample recovery, examination and photography as well as appropriate testing to assist with a failure investigation.
Conducting appropriate tests and examinations to help determine how components have been manufactured and the materials used in their construction.
Introduction & Examination
Discussion & Conclusion
The contact surfaces of a microswitch with poor continuity were examined. This revealed a contaminant preventing the surfaces from contacting. Microscopic FTIR analysis of the surfaces revealed the contaminant to be consistent with residual rosin flux.
A bolt was received that had experienced fracture at low load. Metallographic cross-sections through the bolt head revealed a network of branching cracks consistent with stress corrosion cracking (SCC). Chemical analysis of the fracture surfaces using the EDS function of the electron microscope revealed the corrosion to be predominantly from chlorides.
A portion of wire (2mm x 0.2mm) was discovered in a food product. Examinations and testing included fractography, chemical analysis, metallographic examination and dimensional examination. The information obtained was then compared to a range of possible sources in the factory to help establish the origin.
Examinations of the fracture surfaces revealed the fracture to have occurred due to the presence of an oxide inclusion in the blade. This weakened the cross-section allowing for fatigue cracking propagate. Semi-quantitative chemical analysis of the inclusion indicated it to be refractory material from the casting process.
Library of FailuresSee full list here
Torsional Overload of Threaded Shaft
A threaded shaft had fractured at an end face of a nut. The shaft had failed by torsional overload and evidence of twisting of th...
Torsional Overload of Crankshaft Spline
The fracture surface was relatively flat and displayed radial arced markings on the majority of the fracture surface, and a coarse...
Staged Overload of Threaded Component
Visual examination of the fracture revealed the initiation portion to be at nominally 45°, which is typical of shear. The fractur...