Publication detail

Effect of Al-Si diffusion coating on the fatigue behavior of cast Inconel 713LC at 800 degC.

JULIŠ, M. OBRTLÍK, K. POSPÍŠILOVÁ, S. PODRÁBSKÝ, T. POLÁK, J.

Czech title

Vliv difúzní vrstvy Al-Si na únavové chování lité slitiny Inconel 713LC při teplotě 800 stC.

English title

Effect of Al-Si diffusion coating on the fatigue behavior of cast Inconel 713LC at 800 degC.

Type

journal article - other

Language

en

Original abstract

Cylindrical specimens of Inconel 713LC in as-received condition and with surface treatment by Al-Si diffusion coating were cyclically strained under strain control at 800 degC in air. Changes in the shape and size of the superalloy precipitates during the surface treatment are documented. The structural and hardness characteristics of the hardened surface layer are presented. Hardening/softening curves, cyclic stress-strain curves, and fatigue life curves are obtained. The sections parallel to the specimen axis and fracture surfaces have been examined to study fatigue damage mechanisms. The coating results in fatigue life improvement while the stress response of the treated material is lower in comparison with the untreated one.

Czech abstract

Práce se zabývá studiem vlivu vrstvy Al-Si na únavové chování (únavovou životnost) lité polykrystalické niklové superslitiny Inconel 713LC při vysoké teplotě 800 stC v režimu řízené deformace na vzduchu. Byly sledovány změny mikrostruktury, měřena tvrdost, dokumentovány křivky změkčení/zpevnění, cyklická napěťovo – deformační křivky, křivky únavové životnosti. Na základě lomových ploch a osových řezů byly také studovány mechanismy únavového poškození.

English abstract

Cylindrical specimens of Inconel 713LC in as-received condition and with surface treatment by Al-Si diffusion coating were cyclically strained under strain control at 800 degC in air. Changes in the shape and size of the superalloy precipitates during the surface treatment are documented. The structural and hardness characteristics of the hardened surface layer are presented. Hardening/softening curves, cyclic stress-strain curves, and fatigue life curves are obtained. The sections parallel to the specimen axis and fracture surfaces have been examined to study fatigue damage mechanisms. The coating results in fatigue life improvement while the stress response of the treated material is lower in comparison with the untreated one.

Keywords in Czech

Nízkocyklová únava, difúzní vrstva, Inconel 713LC, vysoká teplota, degradační mechanismy

Keywords in English

Low cycle fatigue; diffusion coating; Inconel 713LC; high temperature; damage mechanisms;

RIV year

2010

Released

15.03.2010

Publisher

Elsevier Ltd.

ISSN

1877-7058

Journal

Procedia Engineering

Volume

2

Number

1

Pages from–to

1983–1989

Pages count

7

BIBTEX


@article{BUT48370,
  author="Martin {Juliš} and Karel {Obrtlík} and Simona {Hutařová} and Tomáš {Podrábský} and Jaroslav {Polák},
  title="Effect of Al-Si diffusion coating on the fatigue behavior of cast Inconel 713LC at 800 degC.",
  journal="Procedia Engineering",
  year="2010",
  volume="2",
  number="1",
  month="March",
  pages="1983--1989",
  publisher="Elsevier Ltd.",
  issn="1877-7058"
}