Publication detail
High temperature high cycle fatigue behavior of Ni base superalloy IN 713 LC at tensile mean stress
MINTÁCH, R.
Czech title
Vysokoteplotné vysokocyklové správanie Ni-superzliatiny IN713LC pri ťahovom strednom napatí
English title
High temperature high cycle fatigue behavior of Ni base superalloy IN 713 LC at tensile mean stress
Type
conference paper
Language
en
Original abstract
High-cycle fatigue/creep behaviour of cast nickel base superalloy IN713LC was experimentally examined at 800 C in air. Experiments were aimed on determination of cyclic creep rate, time to fracture, kind and mode of damage. An attempt has been made to explain the cyclic creep behaviour by a balance between an effect of decrease of plastic strain response with increasing strain rate in a loading cycle and an accelerating effect of the cyclic plasticity on the development of unidirectional plastic strain. Three types of fatigue crack initiation were observed: long crystallographic Stage I surface initiation, internal crystallographic initiation related to structural defects and initiation on defect followed by Stage II crack propagation.
Czech abstract
Práca predstavuje experimentálne výsledky charakterizujúce interakciu vysokocyklovej únavy a creepu u liatej Ni-superzliatine IN713LC. Príspevok vysvetľuje vplyv ťahového stredného napatia a superponácie amplitúdy napatia na stredné napatie na životnosť a sposob porušenia daného materiálu.
English abstract
High-cycle fatigue/creep behaviour of cast nickel base superalloy IN713LC was experimentally examined at 800 C in air. Experiments were aimed on determination of cyclic creep rate, time to fracture, kind and mode of damage. An attempt has been made to explain the cyclic creep behaviour by a balance between an effect of decrease of plastic strain response with increasing strain rate in a loading cycle and an accelerating effect of the cyclic plasticity on the development of unidirectional plastic strain. Three types of fatigue crack initiation were observed: long crystallographic Stage I surface initiation, internal crystallographic initiation related to structural defects and initiation on defect followed by Stage II crack propagation.
Keywords in English
IN713LC, creep-fatigue interaction, mean stress
RIV year
2006
Released
30.11.2006
Publisher
AVČR, Brno
Location
Brno
ISBN
80-239-8271-0
Book
Víceúrovňový design pokrokových materiálů
Pages from–to
119–127
Pages count
8
BIBTEX
@inproceedings{BUT21726,
author="Rastislav {Mintách},
title="High temperature high cycle fatigue behavior of Ni base superalloy IN 713 LC at tensile mean stress",
booktitle="Víceúrovňový design pokrokových materiálů",
year="2006",
month="November",
pages="119--127",
publisher="AVČR, Brno",
address="Brno",
isbn="80-239-8271-0"
}