A brief note on monotonic and fatigue fracture events investigation of thin-walled tubular austenitic steel specimens via fracture surface topography analysis (FRASTA)

2022 ◽  
pp. 106048
Author(s):  
Wojciech Macek ◽  
Dhinakaran Sampath ◽  
Łukasz Pejkowski ◽  
Krzysztof Żak
Keyword(s):  
Fracture Surface ◽  
Austenitic Steel ◽  
Surface Topography ◽  
Fatigue Fracture ◽  
Thin Walled ◽  
Topography Analysis

scholarly journals SEM analysis of PA38-T6 aluminum alloy thin-walled tubular specimen fatigue fracture, and comparison to surface replication results

2021 ◽  
Vol 338 ◽  
pp. 01023
Author(s):  
Jan Seyda ◽  
Łukasz Pejkowski
Keyword(s):  
Aluminum Alloy ◽  
Fracture Surface ◽  
Fatigue Fracture ◽  
Sem Analysis ◽  
Fatigue Fracture Surface ◽  
Tubular Specimen ◽  
Thin Foils ◽  
Thin Walled ◽  
Replication Technique ◽  
Multiaxial Loadings

The paper presents results of SEM analysis of fatigue fracture surface of thin-walled tubular specimen manufactured from PA38-T6 aluminum alloy. In the previous research specimens were subjected to multiaxial loadings. They were axial, torsional, in-phase, 90º out-of-phase and asynchronous loadings. During the fatigue experiments, the process of initiation and development of cracks was tracked using the surface replication technique, using cellulose acetate thin foils. In the present work, SEM observations of fatigue fracture surface were conducted and compared to previously obtained data. It was confirmed, that the dominating mechanism of fatigue crack formation was the coalescence of small crack, regardless of loading type and level.

A fractographic study exploring the fracture surface topography of S355J2 steel after pseudo-random bending-torsion fatigue tests

Measurement ◽  
2021 ◽  
Vol 178 ◽  
pp. 109443
Author(s):  
W. Macek ◽  
Z. Marciniak ◽  
R. Branco ◽  
D. Rozumek ◽  
G.M. Królczyk
Keyword(s):  
Fracture Surface ◽  
Surface Topography ◽  
Fatigue Tests ◽  
Fractographic Study
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