Cracking behaviour of heat-resisting steels, alloys and a carbon-fibre-reinforced polymer at elevated temperatures

Ryuichi Ohtani, Takayuki Kitamura, Naoya Tada

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Characterization of creep-dominated fatigue cracking or cavitation in smooth specimens of a type 304 stainless steel is emphasized in terms of the stochastic nature of small-crack initiation and growth. As compared with monometallic ductile steels, a somewhat different cracking behaviour is shown for a titanium alloy Ti-17, an oxide-dispersion-strengthened nickel-base superalloy Inconel MA754 and a grey cast iron FC25. The mechanical behaviour of the large-crack propagation of creep and high temperature fatigue in high strength, low ductility materials is discussed in comparison with ductile materials. A quasi-small-scale creep condition dominates for the creep-fatigue crack propagation of the nickel-base superalloy Inconel 718, and a pure small-scale creep condition is established in the creep crack propagation of an aluminium alloy 2014-T6 and a carbon-fibre-reinforced polymer, namely unidirectional carbon fibres-poly(ether-ether-ketone) composite.

Original languageEnglish
Pages (from-to)213-222
Number of pages10
JournalMaterials Science and Engineering A
Volume143
Issue number1-2
DOIs
Publication statusPublished - Sep 15 1991
Externally publishedYes

Fingerprint

Alloy steel
crack propagation
carbon fibers
Heat resistance
Carbon fibers
Inconel (trademark)
Polymers
Creep
steels
heat resistant alloys
heat
ethers
polymers
nickel
thermal fatigue
Crack propagation
crack initiation
titanium alloys
cavitation flow
high strength

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Cracking behaviour of heat-resisting steels, alloys and a carbon-fibre-reinforced polymer at elevated temperatures. / Ohtani, Ryuichi; Kitamura, Takayuki; Tada, Naoya.

In: Materials Science and Engineering A, Vol. 143, No. 1-2, 15.09.1991, p. 213-222.

Research output: Contribution to journalArticle

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