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.
|PDF - Accepted Version |
Restricted to NML users only. Others may use ->
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).
|Uncontrolled Keywords:||Spring; Quench cracks; Fatigue failure; Machinery failure|
|Divisions:||Material Science and Technology|
|Deposited By:||INVALID USER|
|Deposited On:||07 Dec 2009 21:41|
|Last Modified:||08 Feb 2012 14:32|
Repository Staff Only: item control page