scholarly journals Fatigue Crack Resistance of Ultrafine-Grained Copper Structures

10.5772/39035 ◽  
2012 ◽  
Author(s):  
Luca Collini
Keyword(s):  
Fatigue Crack ◽  
Crack Resistance ◽  
Ultrafine Grained

Corrosion fatigue crack initiation in ultrafine-grained near-α titanium alloy PT7M prepared by Rotary Swaging

2019 ◽  
Vol 790 ◽  
pp. 347-362 ◽  
Author(s):  
V.N. Chuvil'deev ◽  
V.I. Kopylov ◽  
N.N. Berendeev ◽  
A.A. Murashov ◽  
A.V. Nokhrin ◽  
...  
Keyword(s):  
Titanium Alloy ◽  
Fatigue Crack ◽  
Crack Initiation ◽  
Corrosion Fatigue ◽  
Fatigue Crack Initiation ◽  
Corrosion Fatigue Crack ◽  
Rotary Swaging ◽  
Ultrafine Grained

Near-Threshold Fatigue Crack Growth Behavior of ECAPed Ultrafine-Grained Copper

2021 ◽  
Vol 1016 ◽  
pp. 1193-1198
Author(s):  
Shou Dao Qu ◽  
Ze Sheng You
Keyword(s):  
Fatigue Crack ◽  
Fatigue Crack Growth ◽  
Crack Growth ◽  
Fatigue Threshold ◽  
Coarse Grained ◽  
Crack Growth Behavior ◽  
Fatigue Crack Growth Resistance ◽  
Ultrafine Grained ◽  
Stress Ratios ◽  
Near Threshold

Fatigue crack growth resistance of ultrafine grained Cu processed by equal channel angular pressing (ECAP) was investigated. Particular emphasis was devoted to the effects of microstructure evolution on fatigue crack growth in the near-threshold regime. The ultrafine grained Cu exhibits a lower fatigue threshold than coarse-grained Cu at stress ratios of 0.1 and 0.7. Fatigue induced coarsening of the UFG structure near the fatigue crack and intergranular fatigue crack growth are observed.

scholarly journals Effect of Microstructure on Fatigue Crack Propagation Behavior in Ultrafine-Grained Steel.

2002 ◽  
Vol 51 (7) ◽  
pp. 795-800 ◽  
Author(s):  
Hidehiko KIMURA ◽  
Yoshiaki AKINIWA ◽  
Keisuke TANAKA ◽  
Jun KONDO ◽  
Tadashi ISHIKAWA
Keyword(s):  
Fatigue Crack ◽  
Crack Propagation ◽  
Fatigue Crack Propagation ◽  
Fatigue Crack Propagation Behavior ◽  
Propagation Behavior ◽  
Ultrafine Grained ◽  
Crack Propagation Behavior ◽  
Ultrafine Grained Steel ◽  
Effect Of Microstructure

scholarly journals Microscopic Analysis by EBSD Method on Fatigue Crack Propagation Behaviour in Ultrafine-Grained Copper

2009 ◽  
Vol 75 (754) ◽  
pp. 742-751
Author(s):  
Yuka KOJIMA ◽  
Hidehiko KIMURA ◽  
Yoshiaki AKINIWA ◽  
Yang JU
Keyword(s):  
Fatigue Crack ◽  
Crack Propagation ◽  
Fatigue Crack Propagation ◽  
Microscopic Analysis ◽  
Ultrafine Grained ◽  
Ebsd Method

411 Microscopic Analysis of Fatigue Crack Propagation Behavior in Ultrafine-Grained Steel by EBSD and AFM

2005 ◽  
Vol 2005.54 (0) ◽  
pp. 103-104
Author(s):  
Yutaka HATTORI ◽  
Hidehiko KIMURA ◽  
Yosiaki AKINIWA ◽  
Keisuke TANAKA ◽  
Tadashi ISHIKAWA
Keyword(s):  
Fatigue Crack ◽  
Crack Propagation ◽  
Fatigue Crack Propagation ◽  
Microscopic Analysis ◽  
Fatigue Crack Propagation Behavior ◽  
Propagation Behavior ◽  
Ultrafine Grained ◽  
Crack Propagation Behavior ◽  
Ultrafine Grained Steel

Fatigue crack resistance of crankshafts

1983 ◽  
Vol 15 (5) ◽  
pp. 652-655
Author(s):  
A. V. Prokopenko ◽  
M. N. Sultani ◽  
V. V. Khil'chevskii ◽  
V. N. Ezhov ◽  
Yu. M. Shemegan
Keyword(s):  
Fatigue Crack ◽  
Crack Resistance

Fatigue crack propagation in ultrafine grained Al–Mg alloy

2005 ◽  
Vol 27 (10-12) ◽  
pp. 1164-1169 ◽  
Author(s):  
P PAO ◽  
H JONES ◽  
S CHENG ◽  
C FENG
Keyword(s):  
Fatigue Crack ◽  
Crack Propagation ◽  
Fatigue Crack Propagation ◽  
Mg Alloy ◽  
Ultrafine Grained

scholarly journals EVALUATION OF CHARACTERISTICS OF RESISTANCE OF PROPAGATION OF CORROSION- FATIGUE CRACKS OF LONG-TERM OPERATED DRILL PIPES

2021 ◽  
pp. 111-122
Author(s):  
О. Yu. Vytyaz ◽  
R. S. Hrabovskyi
Keyword(s):  
Fatigue Crack ◽  
Crack Resistance ◽  
Corrosion Fatigue ◽  
Fatigue Cracks ◽  
Drill String ◽  
Drilling Mud ◽  
Corrosion Fatigue Crack ◽  
Corrosion Crack Resistance ◽  
Fatigue Crack Development

The aim of the proposed article is to determine the patterns of the corrosion-fatigue cracks in long-term operational metal elements of drill strings (steel 45, 36G2S, 40HN) when drilling wells in corrosive environments (drilling fluid "Biocar", potassium polymer mud and on the air). Based on the obtained results of experimental studies, diagrams of cyclic corrosion crack resistance for the studied systems "metal - medium" were drawn. The cyclic crack resistance characteristics of long-used metals of drill string elements are determined - the values of constants (C and n) in power dependence of Paris, as well as the values of threshold and critical stress intensity factory. The influence of drilling mud of the corrosion crack resistance of the investigated metals of drill string elements was estimated quantitatively. In particular, in the environment of drilling mud "Biocar" the process of corrosion-fatigue crack development in the studied metals of the elements of drill strings is not significantly, in the range of 1-5%, differs from the development of fatigue crack on the air. Whereas in the potassium polymer drilling mud media, the rate of corrosion-fatigue cracks development in the investigated metals of the drill strings elements significantly, in the range of 15-35%, differs from the development of fatigue cracks on the air. It is established that under the influence of working loads the process of the corrosion-fatigue crack development in long-operated elements of drilling string is accelerated by more than 10% in the media of the potassium polymeric drilling mud than in the environment of drilling mud "Biocar".

scholarly journals Fracture toughness, fatigue crack resistance and wear resistance of two railroad steels

2020 ◽  
Vol 9 (5) ◽  
pp. 9588-9597
Author(s):  
Leonardo B. Godefroid ◽  
Andrew T. Souza ◽  
Maria A. Pinto
Keyword(s):  
Fracture Toughness ◽  
Wear Resistance ◽  
Fatigue Crack ◽  
Crack Resistance
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