Results 31 to 40 of about 12,878 (286)

Fatigue crack growth in a particulate TiB2 reinforced powder metallurgy iron-based composite

open access: yes, 2003
Fatigue crack growth behavior has been examined in a particulate titanium diboride (TiB2)–reinforced iron-based composite that had been produced via a mechanical alloying process.
Sinclair, I., Yang, N.
core   +1 more source

Effect of Crack Blunting on Subsequent Crack Propagation

open access: yes, 1995
Theories of toughness of materials depend on an understanding of the characteristic instabilities of the crack tip, and their possible interactions. In this paper we examine the effect of dislocation emission on subsequent cleavage of a crack and on ...
Canel, L. M.   +3 more
core   +2 more sources

Erratum to: The shielding effect of the crack-tip plastic zone [PDF]

open access: yesInternational Journal of Fracture, 2011
which should be regarded by the reader as the final version. Fortunately, this mistake has negligible effect on the numerical results shown in Figs. 2, 3 and 4, so that Eqs. (19) and (20) are applicable. In addition, the non-zero components of the Eshelby tensor given in Eq.
P. Zhu, L. Yang, Z. Li, J. Sun
openaire   +1 more source

Crackling noise in three-point bending of heterogeneous materials [PDF]

open access: yes, 2011
We study the crackling noise emerging during single crack propagation in a specimen under three-point bending conditions. Computer simulations are carried out in the framework of a discrete element model where the specimen is discretized in terms of ...
Ferenc Kun   +4 more
core   +2 more sources

Superhard bulk high-entropy carbides with enhanced toughness via metastable in-situ particles

open access: yesNature Communications, 2023
Despite the extremely high hardness of recently proposed high-entropy carbides (HECs), the low fracture toughness limits their applications in harsh mechanical environment. Here, we introduce a metastability engineering strategy to achieve superhard HECs
Jiaojiao Hu   +6 more
doaj   +1 more source

Effect of stiff substrates on enhancing the fracture resistance of Barium Titanate thin films

open access: yesMaterials & Design, 2023
Damage tolerance of a thin film attached to a substrate is dependent on several parameters such as film thickness, film orientation, residual stresses, nature of interfaces, microstructure and defects present.
Nidhin George Mathews   +5 more
doaj   +1 more source

Some experimental observations of crack-tip mechanics with displacement data [PDF]

open access: yes, 2015
Estudio de la mecánica en el vértice de la grieta mediante datos de desplazamiento.In the past two decades, crack-tip mechanics has been increasingly studied with full-field techniques.
Lopez-Crespo, Pablo   +3 more
core   +4 more sources

Short crack initiation and growth at 600 °C in notched specimens of Inconel718

open access: yes, 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

Direct Metal Deposition of Graphene–Ti28Nb35.4Zr Matrix Composites With Enhanced Mechanical, Corrosion, and Biocompatibility Properties for Bone Implants

open access: yesAdvanced Engineering Materials, EarlyView.
Graphene nanoplatelet (0.1 wt.%) reinforcement significantly enhances the performance of β Ti‐28Nb‐35.4Zr alloy. Grain refinement, reduced water contact angle, and improved surface characteristics promote osteoblast adhesion and complete surface coverage after 7 days.
Khurram Munir   +5 more
wiley   +1 more source

Interface crack between dissimilar one-dimensional hexagonal quasicrystals with piezoelectric effect [PDF]

open access: yes, 2019
In this paper, an interface crack between dissimilar one-dimensional (1D) hexagonal quasicrystals with piezoelectric effect under anti-plane shear and in-plane electric loadings is studied. By using integral transform techniques, the mixed boundary value
Chen, X, Hu, KQ, Jin, H, Yang, Zhenjun
core   +1 more source

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