Results 81 to 90 of about 2,183,502 (251)
Fatigue of friction stir welded 2024-T351 aluminium alloy
, 2002 Fatigue failure characteristics of friction stir welds in 13mm gauge 2024-T351 plate have been assessed. Failure occurred from either the weld region (nugget/flow arm) or from the material immediately surrounding the weld.
Booth, D., Sinclair, I.
core +1 more source
International Journal of Solids and Structures, 2019 The effects of rock inherent heterogeneity and grain size on hydraulic fracture initiation and propagation for different propagation regimes are investigated through two dimensional discrete element modeling.
Liuke Huang +4 more
semanticscholar +1 more source
The initiation of grain movement by wind [PDF]
When air blows across the surface of dry, loose sand, a critical shear velocity must be achieved to initiate motion. Since most natural sediments consist of a range of grain sizes, fluid threshold for any sediment cannot really be defined by a finite ...
Nickling, William G.
core +2 more sources
Short crack initiation and growth at 600 °C in notched specimens of Inconel718
, 2003 The natural initiation and growth of short cracks in Inconel®718 U-notch specimens has been studied at 600 °C in air. U notches were introduced through broaching, and hardness traces and optical microscopy on cross-sections through the U notch broaching ...
Connolley, T. +2 more
core +1 more source
Influence of corrosion and creep on intergranular fatigue crack path in 2XXX aluminium alloys [PDF]
, 2010 In this paper, two examples of the influence of time-dependent processes on crack path in two 2XXX aluminium alloys are presented. The first example is concerned with corrosion–fatigue crack growth resistance of a 2024 T351 alloy cracked in the S–L ...
Hénaff, Gilbert +2 more
core +3 more sources
, 2020 The effects of applied stress on the pitting of sensitized Type 304 stainless steel were investigated in 4 M MgCl2 immersion test. Regardless of whether stress was applied, pitting was initiated at inclusions at sensitized grain boundaries.
Shimpei Tokuda +3 more
semanticscholar +1 more source
Effect of heat treatment on fatigue crack initiation of laser powder bed fusion stainless steel 316L
MATEC Web of Conferences, 2018 Laser powder bed fusion (L-PBF) is an emerging additive manufacturing technique for building structural components. L-PBF processing defects, such as lack of fusion pores, promote fatigue crack initiation and shorten the fatigue life.
Zhang Meng +6 more
doaj +1 more source
Nihon Kikai Gakkai ronbunshu, 2017 The purpose of this study is to investigate low cycle fatigue (LCF) and high cycle fatigue (HCF) strengths, crack initiation and growth behaviors of Ni based castalloy 246. LCF and HCF tests are conducted under load controlled conditions.
Takayuki KURAMITSU +5 more
doaj +1 more source
Materials & Design (1980-2015), 2019 Cracking represents the main challenge for exploiting tungsten in additive manufacturing. In this study, laser powder-bed-fusion technique was applied to additively manufacture tungsten.
Dianzheng Wang +5 more
semanticscholar +1 more source
On the mechanism of fatigue and dwell-fatigue crack initiation in Ti-6Al-4V
, 2020 In the present study, the mechanism of fatigue and dwell-fatigue crack initiation was investigated in Ti-6Al-4V with a bi-modal microstructure. While substantial dwell-fatigue life debit was evidenced, microstructural configurations associated with crack
C. Lavogiez, S. Hémery, P. Villechaise
semanticscholar +1 more source