Results 21 to 30 of about 47,687 (264)

Incidence and contributing factors of non-root canal treated teeth with chronic fatigue root fracture: A cross-sectional study

Journal of the Formosan Medical Association, 2023
Background/purpose: Chronic fatigue root fracture describes a root fracture in a non-root canal treated (non-RCT) tooth. This study aimed to report the incidence and contributing factors of non-RCT teeth with chronic fatigue root fracture in a Taiwanese ...
Shue-Fen Yang, Yan-Wen Chen, Chia-Lun Tsai, Han-Chieh Cheng, Shang-Liang Wu, Aviad Tamse, Yi-Ching Ho   +6 more
doaj   +1 more source

Understanding the Fatigue Notch Sensitivity of High-Strength Steels through Fracture Toughness

Metals, 2023
This study presents an innovative approach for selecting high-strength materials for fatigue dimensioning parts, considering both fracture toughness and fatigue performance.
Sergi Parareda, David Frómeta, Daniel Casellas, Henrik Sieurin, Antonio Mateo   +4 more
doaj   +1 more source

Cause Analysis and Solution of Premature Fracture of Suspension Rod in Metro Gear Box

Metals, 2022
Through the appearance observation of suspension rod in the metro gearbox, macro and micro observation of the fracture and quantitative analysis of the fracture, combined with the metallographic and hardness examination results of the boom, the finite ...
Wenming Liu, Zhiqiang Xu, Hongmei Liu, Xuedong Liu   +3 more
doaj   +1 more source

Property optimization of low-cycle fatigue in Al-Si piston alloy at elevated temperatures by ultrasonic melt treatment

Journal of Materials Research and Technology, 2019
The cyclic deformation and damage behaviors of Al-Si piston alloys are comprehensively studied. It is found that the fatigue cracks mainly initiate from broken primary Si at low temperature and phase/matrix interface debonding at higher temperature.
M. Wang, J.C. Pang, H.Q. Liu, S.X. Li, Z.F. Zhang   +4 more
doaj   +1 more source

Low cycle fatigue properties and fatigue mechanism of DD6 single crystal superalloy under asymmetrical cyclic loading

Journal of Aeronautical Materials, 2023
The low cycle fatigue（LCF） properties of DD6 single crystal superalloy were investigated at 700 ℃ and R of 0.05. SEM was used to study the fracture surface and fracture microstructure.
LI Wei, ZHAO Chunling, ZHANG Xin, WANG Qiang, LI Pu, FANG Xiang, PENG Wenya   +6 more
doaj   +1 more source

To Improve Total Knee Prostheses Performance Using Three-Phase Ceramic-Based Functionally Graded Biomaterials

Frontiers in Materials, 2019
One of the common issues that occur after total knee replacement surgery is the aseptic loosening. The problem usually occurs after about 15 years from the surgery.
Majid Reza Ayatollahi, Mohammad Hossein Davari, Hadi Asgharzadeh Shirazi, Alireza Asnafi   +3 more
doaj   +1 more source

Applications of Phase Field Methods in Modeling Fatigue Fracture and Performance Improvement Strategies: A Review

Metals, 2023
Fatigue fracture simulation based on phase field methods is a promising numerical approach. As a typical continuum approach, phase field methods can naturally simulate complex fatigue fracture behavior.
Haitao Cui, Chenyu Du, Hongjian Zhang
doaj   +1 more source

FATIGUE AND FRACTURE BEHAVIOR OF LPBF MANUFACTURED ALUMINUM ALLOY [PDF]

European Journal of Materials Science and Engineering, 2019
Fatigue and fracture behavior of laser powder bed fusion (LPBF) processed aluminum alloy (AlSi10Mg) was evaluated in this investigation. High cycle fatigue and fracture characteristics were evaluated as a function of as-built specimen orientations and ...
Luke SUTTEY, Vadiraja SUDHAKAR
doaj   +1 more source

Fatigue characteristics of copper-steel electron beam welding materials

Cailiao gongcheng, 2023
The fatigue performance of dissimilar metal welded components has an important influence on the service reliability of spacecraft. The fatigue life and fatigue fracture mechanism of dissimilar metal welded joints of QCr0.8 copper alloy and 1Cr21Ni5Ti ...
CHEN Yu, ZHOU Genshu, ZHAN Teng, LI Chengji, HUA Xiaoming, ZHANG Quanming, FU Qinqin, LIU Xinjie, CHEN Kunyu, ZHANG Qinlian   +9 more
doaj   +1 more source

Mechanical properties of aluminum to steel dissimilar spot joints produced by cold metal transfer weld-brazing

Forces in Mechanics, 2023
Spot joints between aluminum and steel sheets were produced by cold metal transfer arc welding using an AlSi3Mn alloy low melting point filler wire. The current study found that by using optimal welding conditions, the thickness of the joint interface ...
Nazmul Huda, James Chen, Adrian P. Gerlich   +2 more
doaj   +1 more source