The initial stage in thermal fatigue failure of cast iron

Drapkin, B. M.; Жуков, А. А.; Piguzov, Yu. V.

doi:10.1007/bf00656681

Cited by 3 publications

(1 citation statement)

References 2 publications

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“…(i) By judicious alloying (Dearden 1961;Gundlach 1978Gundlach , 1979Roehrig 1978;Park et al 1985;Dawson & Sage 1989) (ii) By changing the morphology of graphite in cast irons (Drapkin et al 1973;Roehrig 1978; Rukadikar & Reddy 1987) (iii) By increasing the carbon content (Roehrig 1978;Shea 1978;Rukadikar & Reddy 1987) (iv) By thermal shielding of components (Dearden 1961) The literature review further indicates that although details are available on low frequency thermal cycling tests on constrained cast iron specimens (of different graphite morphology and matrix microstructure), the same cannot be said about unconstrained specimens. One such unconstrained component is the piston ring of IC engines.…”

Section: Earlier Work On Thermal Fatigue Resistance Of Cast Ironsmentioning

confidence: 99%

The role of graphite morphology and matrix structure on low frequency thermal cycling of cast irons

Buni

Raman

Seshan

2004

Sadhana

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Low frequency thermal cycling tests were carried out on four types of cast iron (viz., austempered ductile iron, pearlitic ductile iron, compacted/vermicular graphite iron and grey cast iron) at predetermined ranges of thermal cycling temperatures. The specimens were unconstrained. Results show that austempered ductile iron has the highest thermal cycling resistance, followed by pearlitic ductile iron and compacted graphite iron, while grey cast iron exhibits the lowest resistance. Microstructural analysis of test specimens subjected to thermal cycling indicates that matrix decomposition and grain growth are responsible for the reduction in hardness while graphite oxidation, de-cohesion and grain boundary separation are responsible for the reduction in the modulus of elasticity upon thermal cycling.

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Section: Earlier Work On Thermal Fatigue Resistance Of Cast Ironsmentioning

confidence: 99%