Počet záznamů: 1

AFM study of surface relief evolution in 316L steel fatigued at low and high temperatures

SYSNO ASEP	0355179
Druh ASEP	J - Článek v odborném periodiku
Zařazení RIV	J - Článek v odborném periodiku
Poddruh J	Článek ve WOS
Název	AFM study of surface relief evolution in 316L steel fatigued at low and high temperatures
Tvůrce(i)	Man, Jiří (UFM-A)_{RID, ORCID} Valtr, B. (CZ) Weidner, A. (DE) Petrenec, Martin (UFM-A) Obrtlík, Karel (UFM-A)_{RID, ORCID} Polák, Jaroslav (UFM-A)_{RID, ORCID}
Zdroj.dok.	Procedia Engineering. - Amsterdam : Elsevier BV Roč. 2, č. 1 (2010), s. 1625-1633
Poč.str.	9 s.
Akce	Fatigue 2010
Datum konání	06.06.2010-11.06.2010
Místo konání	Praha
Země	CZ - Česká republika
Typ akce	WRD
Jazyk dok.	eng - angličtina
Země vyd.	NL - Nizozemsko
Klíč. slova	Fatigue crack initiation ; 316L steel ; Persistent slip band (PSB) ; Extrusion ; Intrusion ; Atomic force microscopy (AFM)
Vědní obor RIV	JL - Únava materiálu a lomová mechanika
CEP	GAP108/10/2371 GA ČR - Grantová agentura ČR
	1QS200410502 GA AV ČR - Akademie věd
	GA106/06/1096 GA ČR - Grantová agentura ČR
CEZ	AV0Z20410507 - UFM-A (2005-2011)
UT WOS	000278762900173
DOI	10.1016/j.proeng.2010.03.175
Anotace	Surface relief of austenitic stainless 316L steel cycled with constant plastic strain amplitude at 93, 173 and 573 K to different early stages of fatigue life was studied using atomic force microscopy (AFM) and high resolution scanning electron microscopy (SEM–FEG). Characteristic features of surface relief topography and the evolution of persistent slip markings (PSMs) were documented for all temperatures. At 173 and 573 K PSMs consist of growing extrusions accompanied later by parallel intrusions while at the lowest temperature only static extrusions were found. In addition to distinct true PSMs fine slip markings with peakto-valley topography covering homogeneously different parts of grains and deformation induced martensite were detected in 316L steel fatigued at 93 K. Experimental results on the PSM topography and the kinetics of extrusion growth are discussed in relation to point defect models of surface relief formation leading to fatigue crack initiation.
Pracoviště	Ústav fyziky materiálu
Kontakt	Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485
Rok sběru	2011

Počet záznamů: 1