Methods for evaluating fracture patterns of polycrystalline materials based on the parameter analysis of ductile separation dimples: A review

Engineering Failure Analysis, Год журнала: 2023, Номер 153, С. 107587 - 107587

Опубликована: Сен. 3, 2023

Literature sources have been reviewed, various techniques, methods and software for investigating fracture of polycrystalline materials subjected to the systematic analysis, dimples ductile separation quantified. Regularities in description patterns inherent at macro-, meso- micro-levels addressed, their features parameters scrutinized. Algorithms recognizing calculating images obtained by electron microscopy analyzed terms functionality ability ensure highly informative content reliability fractographic control.

Язык: Английский

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The Smith-Watson-Topper parameter and fracture surface topography relationship for additively manufactured 18Ni300 steel subjected to uniaxial variable-amplitude loading

Theoretical and Applied Fracture Mechanics, Год журнала: 2024, Номер 133, С. 104607 - 104607

Опубликована: Авг. 6, 2024

In this paper, the association between Smith-Watson-Topper (SWT) parameter and fracture surface topography is studied in additively manufactured maraging steel exposed to variable-amplitude fatigue loading. The post-failure surfaces were examined using a non-contact 3D measuring system entire method. focal point on correspondence characteristics, articulate by SWT parameter, features, represented areal, volume, fractal dimension parameters. A life prediction model based factors proposed. presented expresses good compliance with test results. This can be useful for post-mortem analysis of engineering elements under loading fatigue, especially materials produced additive manufacturing (AM).

Язык: Английский

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Evaluation of high-frequency roughness measurement errors for composite and ceramic surfaces after machining

Journal of Manufacturing Processes, Год журнала: 2024, Номер 121, С. 150 - 171

Опубликована: Май 20, 2024

Precise characterisation of surface topography is the greatest importance since many factors directly affect accuracy whole measurement process. In this paper, variety topographies from machined composite and ceramic workpieces was studied with a special emphasis on results. Surfaces were subjected to ground diamond, honing milling processes. Measurement results analysed in terms application procedure for removal high-frequency noise. Bandwidth characteristics supported by studies autocorrelation power spectral functions. It found, that examination noisy data, especially its isotropic properties, crucial enhancement noise-removal methods. The proposed validated through direction profile characterisation. spline filtering technique 7.5 μm cut-off encouraged against other generally used techniques reduction noise considering study based spectral, methodology comparing it averaged 3 time repeated measurements surfaces after machining. main advantage proposal reducing data processing due fast easy-to-implement usage general analysis functions, available commercial software measuring instrument.

Язык: Английский

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Unified fatigue life prediction method for Q450NQR1 lockbolt joints using structural stress

Journal of Constructional Steel Research, Год журнала: 2025, Номер 227, С. 109333 - 109333

Опубликована: Янв. 11, 2025

Язык: Английский

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Temperature-dependent fatigue behavior of additively manufactured Hastelloy-X: The effect of manufacturing process

Journal of Manufacturing Processes, Год журнала: 2025, Номер 136, С. 123 - 136

Опубликована: Янв. 27, 2025

Язык: Английский

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A novel framework of neural network for notch fatigue life prediction by integrating self-attention mechanism and implicit physical constraints

Engineering Fracture Mechanics, Год журнала: 2025, Номер 319, С. 110994 - 110994

Опубликована: Март 1, 2025

Язык: Английский

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Measurement Technique Comparison in the Entire Fracture Surface Topography Assessment for Additively Manufactured Materials

Materials, Год журнала: 2025, Номер 18(6), С. 1355 - 1355

Опубликована: Март 19, 2025

This paper focuses on comparing the three microscopic measurement techniques, confocal, focus variation, and point for focus, evaluation of entire fracture surface topographies. The measurements were performed using a Sensofar S Neox 3D optical profilometer Mitutoyo QV Apex 302 vision measuring system. test specimens required printed through laser powder bed fusion (LPBF) technology two materials: Stainless Steel 316L Inconel 718. printing was with power 200 W, scanning speed 800 mm/s, layer thickness 30 µm or 50 µm. differences analyzed basis void volume (Vv), fractal dimension (Df), texture isotropy parameters, as well general view topography. obtained results did not show comprehensible difference between applied techniques particular specimens. Thus, both devices can be used to precisely measure dimensions LPBF-processed method.

Язык: Английский

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Improving the fatigue life of thin plates with small-spacing adjacent double holes with electromagnetic process

Engineering Fracture Mechanics, Год журнала: 2025, Номер unknown, С. 111056 - 111056

Опубликована: Март 1, 2025

Язык: Английский

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Determining critical surface features affecting fatigue behavior of additively manufactured Ti-6Al-4V

International Journal of Fatigue, Год журнала: 2025, Номер unknown, С. 108956 - 108956

Опубликована: Март 1, 2025

Язык: Английский

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ateStudy on the fractal-stress state correlation of pipeline steel fracture surfaces based on three-dimensional reconstruction

Engineering Failure Analysis, Год журнала: 2025, Номер unknown, С. 109570 - 109570

Опубликована: Март 1, 2025

Язык: Английский

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