Effect of Turning on the Surface Integrity and Fatigue Life of a TC11 Alloy in Very High Cycle Fatigue Regime

Gao, Tao; Sun, Zhidan; Xue, Hongqian; Bayraktar, E.; Qin, Zhi; Li, Bin; Zhang, Han

doi:10.3390/met10111507

Cited by 8 publications

(2 citation statements)

References 29 publications

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“…Several scholars have analyzed the crack propagation and residual life of different structures. [6][7][8][9][10][11][12][13] He 14 provided a method for predicting the crack path of welded joints. The influence of the yield strength on the crack propagation path of the welded joint was analyzed without considering other mechanical properties and residual stress.…”

Section: Introductionmentioning

confidence: 99%

Effect of optimized repaired structure with a hole on crack turning and fatigue life

Liao

Wang

2023

Proceedings of the Institution of Mechanical Engineers, Part E:

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A method for artificially promoting crack turning is introduced. By placing a crack-absorbing hole near the patch, the dual purpose of improving the crack deflection angle and prolonging the remaining lifespan of the repaired structure was achieved. Important components behind the patch were protected as well. The influence of the location and size of a single hole on the stress concentration and crack propagation path of an optimized repaired structure was studied using the finite element method. Simultaneously, the stress influence coefficient was introduced to characterize the “attraction” effect of stress at the edge of the opening on the crack propagation path. The results showed that the optimized patch size and the existence of holes led to the deflection of cracks toward the holes and a larger residual fatigue life. When the relative hole radius was 2.22%, the relative hole axial distance was 4% and the relative hole horizontal distance was 15.56% (with a relative patch width, length, and thickness of 35.7%, 50%, and 83.3%, respectively). The deflection angle increased and the residual fatigue life improved.

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Section: Introductionmentioning

confidence: 99%

Effect of optimized repaired structure with a hole on crack turning and fatigue life

Liao

Wang

2023

Proceedings of the Institution of Mechanical Engineers, Part E:

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“…The experimental results showed that the f z had the most significant impact, while the a p had a minor impact. Tao Gao et al [13] studied the influence of the surface integrity and fatigue properties of TC11 titanium alloy, and the results showed that the marks left by turning play a significant role in fatigue fracture, so reducing the surface roughness is the leading research goal. Guolong Zhao et al [14] studied the relationship between the cutting force, tool wear, and surface damage of composites.…”

Section: Introductionmentioning

confidence: 99%

Research on Surface Integrity and Fatigue Properties in the Turning of TC17 Titanium Alloy Based on the Response Surface Method

Lai,

Wang,

Wang

et al. 2023

Materials

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Titanium alloy parts are more and more widely used in the field of aerospace. In order to improve the service life of titanium alloy parts, the response surface method was used to study surface residual stress and roughness under different turning parameters. In addition, a mathematical model was established through multiple linear regression to determine the relationship between surface integrity parameters and fatigue life. The test results indicate that the turning parameters have an effect on surface residual stress in the order of feed rate > depth of cut > cutting speed and on surface roughness in the order of feed rate > cutting speed > depth of cut. The analysis results of surface integrity show that the residual compressive stress on the surface has the greatest impact on fatigue life, followed by surface roughness. The fatigue life increases with the increase in residual compressive stress and decreases linearly with the increase in surface roughness. The feed rate has a significant impact on residual stress and surface roughness. Therefore, under the experimental conditions of this paper, the appropriate feed rate can be selected to ensure that the Ra < 2 μm and a large residual compressive stress is obtained.

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A state-of-the-art review on tool wear and surface integrity characteristics in machining of superalloys

Sarıkaya

Gupta

Tomaz

et al. 2021

CIRP Journal of Manufacturing Science and Technology

167

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Effect of Turning on the Surface Integrity and Fatigue Life of a TC11 Alloy in Very High Cycle Fatigue Regime

Cited by 8 publications

References 29 publications

Effect of optimized repaired structure with a hole on crack turning and fatigue life

Effect of optimized repaired structure with a hole on crack turning and fatigue life

Research on Surface Integrity and Fatigue Properties in the Turning of TC17 Titanium Alloy Based on the Response Surface Method

A state-of-the-art review on tool wear and surface integrity characteristics in machining of superalloys

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