Results 71 to 80 of about 69,376 (310)

Initiation and Propagation Characteristics of Multi-Source Fatigue Crack in Superalloy Disk

open access: yesXibei Gongye Daxue Xuebao, 2020
The multi-source fatigue crack growth characteristics of a turbine disk were studied via high-speed rotating low cycle fatigue test, fracture analysis and crack growth simulation analysis.

doaj   +1 more source

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

open access: yesAdvanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth   +6 more
wiley   +1 more source

Impact of Sustainable Binders Based on Lignin and Collagen on the Volume Stability and Mechanical Properties of MgO‐C Refractories with MgO‐C Recyclates

open access: yesAdvanced Engineering Materials, EarlyView.
Collagen hydrolysate is evaluated as a sustainable binder for MgO‐C refractories. Its thermally induced cross‐linking and gas release lead to expansion and cracking in large bricks, but tailored batches with lignin, recyclates, or fine graphite improve the gas release while thermal treatment and stability.
Till M. J. Stadtmüller   +8 more
wiley   +1 more source

EXPERIMENTAL STUDY ON CRACK GROWTH RATE OF B780CF STEEL WELDED JOINTS UNDER DIFFERENT WELDING PROCESS

open access: yesJixie qiangdu, 2018
The fatigue crack growth rate under different welding process was tested with standard compact tension specimen,the test data are processed by using incremental polynomial method and the crack growth rate curve under different welding process was ...
SHENG ShouYong   +3 more
doaj  

Effect of different environmental conditions on surface crack growth in aluminum alloys [PDF]

open access: yesFracture and Structural Integrity, 2017
. Fatigue surface crack growth is studied through experiments and computations for aluminum alloys D16T and B95AT (analogue of 2024 and 7075 aluminum). Subjects for studies are cylindrical hollow specimens with external semi-elliptical surface crack. The
V. Shlyannikov   +2 more
doaj   +1 more source

Application of local and non-local approaches to multiple fatigue crack initiation and propagation [PDF]

open access: yes, 2003
Fatigue strength conditions presented in terms of normalized equivalent stress functionals defined on loading processes are used to unite the stages of material damage with fatigue crack initiation and multiple crack propagation under arbitrary loading ...
Mikhailov, SE, Namestnikova, IV
core  

Development of Sustainable MgO–C Refractories Using MgO–C Recyclates and a Novel Eco‐Friendly Fructose–Tannin Binder Crosslinked With Citric Acid

open access: yesAdvanced Engineering Materials, EarlyView.
This study develops sustainable MgO–C refractories using recycled materials and eco‐friendly fructose–tannin binders. The enhanced performance of citric acid as a cross‐linker and functional additives on mechanical and thermomechanical properties was examined. Characterization included strength tests, immersion trials, and microstructural and inclusion
Dinesh K. Gunasekar   +7 more
wiley   +1 more source

Enhanced Strength and Corrosion Resistance of Ti‐13Nb‐12Ta‐10Zr‐4Sn Alloy by Aging Treatment

open access: yesAdvanced Engineering Materials, EarlyView.
This work systematically investigates the effect of aging treatment on mechanical properties and corrosion behavior of vacuum arc‐melted Ti‐13Nb‐12Ta‐10Zr‐4Sn alloy. Owing to the increased α″ martensite, strength and corrosion resistance were significantly enhanced by aging treatment.
Yuhua Li   +5 more
wiley   +1 more source

Effect of specimen thickness on fatigue crack growth behavior of friction stir welded 6063-T5 aluminum alloy

open access: yesMechanical Engineering Journal, 2016
In this study, the effect of specimen thickness on the fatigue crack growth behavior of the friction stir welded (FSW) joints of 6063-T5 aluminum alloy was investigated.
Toru TAKASE   +3 more
doaj   +1 more source

Fatigue crack growth rates for offshore wind monopile weldments in air and seawater: SLIC inter-laboratory test results [PDF]

open access: yes, 2016
The majority of fatigue crack growth (FCG) data sets available on steels in air and seawater environments are several decades old and may not be appropriate for structural integrity assessment of offshore wind turbine foundations, which are fabricated ...
Brennan, Feargal P.   +2 more
core   +2 more sources

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