Influence of uniaxial and biaxial pre-straining on the high cycle fatigue performance of DP590 steel

2021 ◽  
pp. 106369
Author(s):  
Puja Ghosal ◽  
Surajit Kumar Paul ◽  
Abhishek Raj
Keyword(s):  
High Cycle Fatigue ◽  
Fatigue Performance ◽  
Cycle Fatigue

Effect of Heat Treatment on Very High Cycle Fatigue Properties of TC4

2021 ◽  
Vol 881 ◽  
pp. 3-11
Author(s):  
Bo Han Wang ◽  
Li Cheng ◽  
Xun Chun Bao
Keyword(s):  
Heat Treatment ◽  
High Cycle Fatigue ◽  
Treatment Method ◽  
Fatigue Performance ◽  
Fatigue Properties ◽  
Cycle Fatigue ◽  
Α Phase ◽  
Very High Cycle Fatigue ◽  
Significant Difference ◽  
Very High

The bimodal, equiaxed and Widmanstatten microstructures of TC4 titanium alloy were obtained through different heat treatment processes. The content of primary α phase in the bimodal and equiaxed microstructures was measured to be about 40% and 90%, and the average size was about 9.4μm and 7.9 μm. Three types of microstructure fatigue S-N curves are obtained, which are successively descending type, single-platform descending type and infinite life type. The order of very high cycle fatigue performance is Widmanstatten>equiaxed>bimodal, but the anti-fretting fatigue performance of Widmanstatten is the worst. The grain refinement makes the fatigue performance of the equiaxed better than that of the bimodal. The second process is determined as the best heat treatment method. There is no significant difference in the life of the crack propagation stage. The very high cycle fatigue life mainly depends on the crack initiation stage. In the bimodal and the equiaxed, the crack initiates in the primary α phase of the subsurface, and the crack in the Widmanstatten initiates in the coarse α 'grain boundary of the subsurface.

Influence of grain size and precipitation hardening on high cycle fatigue performance of CuNiSi alloys

2017 ◽  
Vol 684 ◽  
pp. 524-533 ◽  
Author(s):  
M. Gholami ◽  
J. Vesely ◽  
I. Altenberger ◽  
H.-A. Kuhn ◽  
M. Wollmann ◽  
...  
Keyword(s):  
Grain Size ◽  
Precipitation Hardening ◽  
High Cycle Fatigue ◽  
Fatigue Performance ◽  
Cycle Fatigue

Smooth and notched fatigue performance of aging treated and shot peened ZK60 magnesium alloy

2010 ◽  
Vol 25 (7) ◽  
pp. 1375-1387 ◽  
Author(s):  
Wen-Cai Liu ◽  
Jie Dong ◽  
Ping Zhang ◽  
Xing-Wei Zheng ◽  
Wen-Jiang Ding ◽  
...  
Keyword(s):  
Magnesium Alloy ◽  
Compressive Residual Stress ◽  
High Cycle Fatigue ◽  
Fatigue Performance ◽  
Fatigue Properties ◽  
Cycle Fatigue ◽  
Notched Specimen ◽  
Notched Specimens ◽  
Zk60 Alloy ◽  
Zk60 Magnesium Alloy

The influence of shot peening (SP) on high cycle fatigue (HCF) performance of smooth and notched specimens of hot-extruded ZK60 magnesium alloy was investigated and compared to that of hot-extruded and T5 aging-treated ZK60 magnesium alloy referred to as ZK60-T5. The increases in fatigue properties at the optimum Almen intensities were found to depend on the material states. In contrast to ZK60 alloy, higher smooth and notched fatigue properties for both unpeened and peened specimens were observed for ZK60-T5 alloy. Meanwhile, the improvement of fatigue life for notched specimen by SP was much more than that for the smooth specimen. The mechanism by which the compressive residual stress induced by SP resulted in the improvement of fatigue performance of smooth and notched specimens for ZK60 and ZK60-T5 alloys was discussed.

Experiment investigation of laser shock peening on TC6 titanium alloy to improve high cycle fatigue performance

2014 ◽  
Vol 594 ◽  
pp. 161-167 ◽  
Author(s):  
Xiangfan Nie ◽  
Weifeng He ◽  
Liucheng Zhou ◽  
Qipeng Li ◽  
Xuede Wang
Keyword(s):  
Titanium Alloy ◽  
High Cycle Fatigue ◽  
Laser Shock Peening ◽  
Fatigue Performance ◽  
Cycle Fatigue ◽  
Laser Shock ◽  
Shock Peening

High Cycle Fatigue Performance in Laser Shock Peened TC4 Titanium Alloys Subjected to Foreign Object Damage

2018 ◽  
Vol 27 (3) ◽  
pp. 1466-1474 ◽  
Author(s):  
Sihai Luo ◽  
Xiangfan Nie ◽  
Liucheng Zhou ◽  
Yiming Li ◽  
Weifeng He
Keyword(s):  
Titanium Alloys ◽  
High Cycle Fatigue ◽  
Fatigue Performance ◽  
Foreign Object ◽  
Cycle Fatigue ◽  
Laser Shock ◽  
Foreign Object Damage

scholarly journals Influence of mechanical surface treatments on the high cycle fatigue performance of TIMETAL 54M

2011 ◽  
Vol 528 (6) ◽  
pp. 2554-2558 ◽  
Author(s):  
K. Zay ◽  
E. Maawad ◽  
H.-G. Brokmeier ◽  
L. Wagner ◽  
Ch. Genzel
Keyword(s):  
High Cycle Fatigue ◽  
Surface Treatments ◽  
Fatigue Performance ◽  
Cycle Fatigue ◽  
Mechanical Surface

scholarly journals The effect of decarburization on the fatigue life of overhead line hardware

2021 ◽  
Vol 121 (10) ◽  
pp. 1-6
Author(s):  
J. Calitz ◽  
S. Kok ◽  
D. Delport
Keyword(s):  
Fatigue Life ◽  
Tensile Properties ◽  
High Cycle Fatigue ◽  
Fatigue Performance ◽  
Span Length ◽  
Cycle Fatigue ◽  
Overhead Line ◽  
Fatigue Load ◽  
Homogeneous Microstructure ◽  
Overhead Power Line

Altering the microstructure in order to improve the tensile properties of bow shackles resulted in inconsistency in the fatigue performance. This raises the question whether the inconsistency in fatigue life can be attributed to microstructural changes along the profile of the shackle or to decarburization at the surface. Bow shackles forged from 080M40 (EN8) material were subjected to different heat treatments in order to alter the microstructure. The shackles were subjected to five different fatigue load cases, which represented typical loads experienced at termination points for an overhead power line with a span length of 400 m, with changes in conductor type, configuration, wind, and ice loading. Although the change in microstructure does improve both the tensile and fatigue performance, we found that the depth of the decarburization layer has a greater effect on the high cycle fatigue life of bow shackles than the non-homogeneous microstructure.

scholarly journals Data-driven reduced-order models for rank-ordering the high cycle fatigue performance of polycrystalline microstructures

2018 ◽  
Vol 154 ◽  
pp. 170-183 ◽  
Author(s):  
Noah H. Paulson ◽  
Matthew W. Priddy ◽  
David L. McDowell ◽  
Surya R. Kalidindi
Keyword(s):  
High Cycle Fatigue ◽  
Fatigue Performance ◽  
Data Driven ◽  
Reduced Order Models ◽  
Cycle Fatigue ◽  
Reduced Order ◽  
Rank Ordering
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