Results 71 to 80 of about 167,789 (307)

Karl Popper and the Mechanisms of Hydrogen Embrittlement

Advanced Engineering Materials, EarlyView.
Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
wiley   +1 more source

Different elastic modulus.

, 2022
Different elastic modulus.
Shoubao Zhang (1863034), Zhigao Liu (5225405), Weixiang Meng (14019677), Zhiliu Wang (14019680)   +3 more
core   +1 more source

Microstructure‐Controlled Crack Propagation and Fracture Resistance in MoSiBTiC Alloy Revealed by Multiscale Extended Finite Element Method Modeling

Advanced Engineering Materials, EarlyView.
A two‐dimensional multiscale finite element analysis framework was established for the first‐generation MoSiBTiC alloy, and the mechanical and fracture‐related parameters of the constituent phases were calibrated through experiments and simulations. The framework provides a basis for analyzing crack propagation behavior in its complex microstructure ...
Junfeng Du, Takahiro Kaneko, Xinyu Yan, Takahito Ohmura, Kyosuke Yoshimi   +4 more
wiley   +1 more source

Determination of Elastic Modulus of Thin Coating Materials Using Nanoindentation and Finite Element Analysis

, 2009
A deconvolution method that combines nanoindentation and finite element analysis was developed to determine elastic modulus of thin coating layer in a coating-substrate bilayer system.
Liu, Sheng, Huang, Han, Gu, YuanTong, Liu, S., Gu, Y.T., Huang, H.   +5 more
core   +1 more source

Influence of Al content on the elastic properties and various anisotropies of AlxC rFeCoNiCu high entropy alloys base on the first-principles calculation

Materials Research Express, 2023
First-principles density-functional theory was used to analyze the effects of Al on the mechanical properties, stability, elastic constant, and elastic anisotropy of AlxCrFeCoNiCu (x = 0, 0.5, 1, 1.5, 2) HEAs.
Yanzhou Li, Yan Shi, Rongna Chen, Hongxin Wang, Peng Zhang, Binjun Zhou, Defa Li, Hua Lin, Lin Ding   +8 more
doaj   +1 more source

Hydrogen‐Assisted Fracture of Iron‐Based Fe–Ni–Al Alloys

Advanced Engineering Materials, EarlyView.
Principal relations and fracture mechanisms of single‐phase and precipitate‐strengthened Fe–Ni–Al alloys subjected to prior electrochemical hydrogen charging are identified. The mechanisms of hydrogen effect on strength and microhardness are discussed, including hydrogen‐induced increase in microhardness and the role of hydrogen in fracture behavior ...
Nataliya Yadzhak, Olha Zvirko, Rostyslav Leshchak, Hryhoriy Nykyforchyn   +3 more
wiley   +1 more source

Estimating the effective elastic modulus and specific fracture energy of snowpack layers from field experiments [PDF]

Measurements of the mechanical properties of snow are essential for improving our understanding and the prediction of snow failure and hence avalanche release. We performed fracture mechanical experiments in which a crack was initiated by a saw in a weak
VAN HERWIJNEN, ALEC, REUTER, BENJAMIN, SCHWEIZER, JÜRG, BIRKELAND, KARL W., GAUME, JOHAN, BAIR, EDWARD H.   +5 more
core   +1 more source

Quantitative evaluation of tissue stiffness around lesion by sound touch elastography in the diagnosis of benign and malignant breast lesions.

PLoS ONE, 2019
The purpose of our study is to assess the diagnostic performance of quantitative evaluation of tissue stiffness around lesion by Sound Touch Elastography (STE) in distinguishing between benign and malignant breast lesions.
Leidan Huang, Mengke Ma, Zhen Du, Zheng Liu, Xuehao Gong   +4 more
doaj   +1 more source

Fatigue Crack Initiation and Growth in Nanocrystalline Ni at Multiple Length‐Scales

Advanced Engineering Materials, EarlyView.
Overview of miniaturized in situ SEM fatigue setup and resultant fatigue crack growth data for nanocrystalline Ni. The presented study focuses on the analysis of fatigue crack growth rate (FCGR) in focused ion beam‐notched microcantilevers prepared from nanocrystalline (NC) Ni as a model material.
Igor Moravcik, Alexander Jelinek, Markus Alfreider, Jutta Luksch, Anton Hohenwarter, Florian Schaefer, Christian Motz, Daniel Kiener   +7 more
wiley   +1 more source

Influence of Periodic Freezing on the Value of the Elastic Modulus of Light-weight Fibre Concrete

, 2009
This paper deals with the influence of periodic freezing on light-weight concrete characteristics. Three differential sets of light-weight concrete specimens were periodically freezing and non-destructively testing during this time.
Kucharczyková, Barbara, Misák, Petr, T. Vymazal, O. Pospíchal, Hlaváč, Zbyněk, Z. Hlaváč, Vymazal, Tomáš, P. Misák, Pospíchal, Ondřej, B. Kucharczyková   +9 more
core   +1 more source