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Titolo:
Premature fatigue failure of a spring due to quench cracks
Autore:
Kumar, BR; Bhattacharya, DK; Das, SK; Chowdhury, SG;
Indirizzi:
Natl Met Lab, Mat Characterizat Div, Jamshedpur 831007, Bihar, India Natl Met Lab Jamshedpur Bihar India 831007 amshedpur 831007, Bihar, India
Titolo Testata:
ENGINEERING FAILURE ANALYSIS
fascicolo: 6, volume: 7, anno: 2000,
pagine: 377 - 384
SICI:
1350-6307(200012)7:6<377:PFFOAS>2.0.ZU;2-0
Fonte:
ISI
Lingua:
ENG
Keywords:
spring; quench cracks; fatigue failure; machinery failure;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
11
Recensione:
Indirizzi per estratti:
Indirizzo: Kumar, BR Natl Met Lab, Mat Characterizat Div, Jamshedpur 831007, Bihar, India Natl Met Lab Jamshedpur Bihar India 831007 831007, Bihar, India
Citazione:
B.R. Kumar et al., "Premature fatigue failure of a spring due to quench cracks", ENG FAIL AN, 7(6), 2000, pp. 377-384

Abstract

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 steer. X-ray diffraction showed the presence of a small amount of retained austenite (average grain size of 2 mu m). (C) 2000 Elsevier Science Ltd. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 11/07/20 alle ore 20:26:16