About: Casting defects and high temperature fatigue life of IN 713LC superalloy

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Description	High-cycle high temperature fatigue life of a superalloy IN 713 LC in as cast state and after hot isostatic pressing was experimentally determined for symmetrical cycling and cycling with tensile mean stress of 300 MPa. Fatigue tests were conducted at 800°C in laboratory air. It has been found that the hot isostatic pressing improves the fatigue life. Large casting defects are sites of fatigue crack initiation in both states of the alloy. The hot isostatic pressing reduces the size of casting defects, however the broad scatter band of the lifetime data remains. Determination of casting defects size by optical microscopy on metallographic sections and an analysis of the size distribution by extreme value statistics indicates two types of defects: (i) small isolated defects and (ii) defect clusters consisting of complicated interconnected shrinkages in the three-dimensional space. The size distribution of both types of defects follows the extreme value statistics. This enables to estimate the maximum size of a defect likely to occur in a defined volume. The predicted maximum defect size in a volume of a fatigue specimen reasonable corresponds to the size of defect observed on the fracture surface of failed specimen. High-cycle high temperature fatigue life of a superalloy IN 713 LC in as cast state and after hot isostatic pressing was experimentally determined for symmetrical cycling and cycling with tensile mean stress of 300 MPa. Fatigue tests were conducted at 800°C in laboratory air. It has been found that the hot isostatic pressing improves the fatigue life. Large casting defects are sites of fatigue crack initiation in both states of the alloy. The hot isostatic pressing reduces the size of casting defects, however the broad scatter band of the lifetime data remains. Determination of casting defects size by optical microscopy on metallographic sections and an analysis of the size distribution by extreme value statistics indicates two types of defects: (i) small isolated defects and (ii) defect clusters consisting of complicated interconnected shrinkages in the three-dimensional space. The size distribution of both types of defects follows the extreme value statistics. This enables to estimate the maximum size of a defect likely to occur in a defined volume. The predicted maximum defect size in a volume of a fatigue specimen reasonable corresponds to the size of defect observed on the fracture surface of failed specimen. (en)
Title	Casting defects and high temperature fatigue life of IN 713LC superalloy Casting defects and high temperature fatigue life of IN 713LC superalloy (en)
skos:prefLabel	Casting defects and high temperature fatigue life of IN 713LC superalloy Casting defects and high temperature fatigue life of IN 713LC superalloy (en)
skos:notation	RIV/68081723:_____/12:00385946!RIV13-AV0-68081723
http://linked.open...avai/predkladatel	Ústav fyziky materiálů AVČR, v.v.i.
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(ED1.1.00/02.0068), P(FR-TI3/055)
http://linked.open...iv/cisloPeriodika	AUG
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Kunz, Ludvík Lukáš, Petr
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav fyziky materiálů AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	126108
http://linked.open...ai/riv/idVysledku	RIV/68081723:_____/12:00385946
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	IN 713LC; High-cycle fatigue; casting defects; hot isostatic pressing; extreme value statistics (en)
http://linked.open.../riv/klicoveSlovo	IN 713LC extreme value statistics hot isostatic pressing casting defects High-cycle fatigue
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[1AC6CE81B03C]
http://linked.open...i/riv/nazevZdroje	International Journal of Fatigue
http://linked.open...in/vavai/riv/obor	JL
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Research and development of precise casting technology for new types of nickel-based superalloy castings of rotor parts of turbochargers and aircraft turbines. Central european institute of technology
http://linked.open...UplatneniVysledku	2012
http://linked.open...v/svazekPeriodika	41
http://linked.open...iv/tvurceVysledku	Konečná, R. Kunz, Ludvík Lukáš, Petr Fintová, S.
http://linked.open...ain/vavai/riv/wos	000303486800007
issn	0142-1123
number of pages	5 (xsd:int)
http://bibframe.org/vocab/doi	10.1016/j.ijfatigue.2011.12.002
is http://linked.open...avai/riv/vysledek of	Casting defects and high temperature fatigue life of IN 713LC superalloy

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