| MAN, Jiří, Miroslav VALTR, Anja WEIDNER, Martin PETRENEC, Karel OBRTLÍK a Jaroslav POLÁK. AFM study of surface relief evolution in 316L steel fatigued at low and high temperatures. FATIGUE 2010. 2010, roč. 2010, č. 1, s. 1625-1633. ISSN 1877-7058. |
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@article{891770,
author = {Man, Jiří and Valtr, Miroslav and Weidner, Anja and Petrenec, Martin and Obrtlík, Karel and Polák, Jaroslav},
article_number = {1},
keywords = {fatigue crack initiation; 316L steel; persistent slip band (PSB); extrusion; intrusion; atomic force microscopy (AFM)},
language = {eng},
issn = {1877-7058},
journal = {FATIGUE 2010},
title = {AFM study of surface relief evolution in 316L steel fatigued at low and high temperatures},
volume = {2010},
year = {2010}
}
TY - JOUR
ID - 891770
AU - Man, Jiří - Valtr, Miroslav - Weidner, Anja - Petrenec, Martin - Obrtlík, Karel - Polák, Jaroslav
PY - 2010
TI - AFM study of surface relief evolution in 316L steel fatigued at low and high temperatures
JF - FATIGUE 2010
VL - 2010
IS - 1
SP - 1625-1633
EP - 1625-1633
SN - 18777058
KW - fatigue crack initiation
KW - 316L steel
KW - persistent slip band (PSB)
KW - extrusion
KW - intrusion
KW - atomic force microscopy (AFM)
N2 - 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 peak-to-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.
ER -
MAN, Jiří, Miroslav VALTR, Anja WEIDNER, Martin PETRENEC, Karel OBRTLÍK a Jaroslav POLÁK. AFM study of surface relief evolution in 316L steel fatigued at low and high temperatures. \textit{FATIGUE 2010}. 2010, roč.~2010, č.~1, s.~1625-1633. ISSN~1877-7058.
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