Premature fatigue failure of a spring due to quench cracks

Ravi Kumar, B and Bhattacharya, D K and Das, Swapan K and Ghosh Chowdhury, S (2000) Premature fatigue failure of a spring due to quench cracks. Engineering Failure Analysis, 7 (6). pp. 377-384.

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The premature fatigue failure of a compression spring during service has been analysed. Optical and scanning electron microscopy, hardness and tensile testing and X-ray diffraction techniques were employed. Quench cracks, presumably due to improper quenching, were observed across the cross-section of the spring. It is established theoretically that the diameter of the spring rod was smaller than the critical diameter for this composition of steel. X-ray diffraction showed the presence of a small amount of retained austenite (average grain size of 2 μm).

Item Type:Article
Official URL/DOI:
Uncontrolled Keywords:Spring; Quench cracks; Fatigue failure; Machinery failure
Divisions:Material Science and Technology
ID Code:362
Deposited On:07 Dec 2009 21:41
Last Modified:08 Feb 2012 14:32
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