Results 61 to 70 of about 144,259 (309)

The effect of TiN inclusions on the fracture mechanism of 20CrMnTi steel with lath martensite

Materials Research Express, 2020
This study aims to investigate the effect of TiN inclusions on the fracture mechanism of 20CrMnTi steel with martensite. Size of martensite packets, blocks and TiN inclusions were characterized, and the room-temperature tensile properties, impact ...
Yong Zhu, Ye-Mao Lu, Chao-Wen Huang, Yi-Long Liang   +3 more
doaj   +1 more source

Experimental Investigation on the Tensile and Fracture Properties of Burst-Prone Coal under Quasistatic Condition

Shock and Vibration, 2021
To study the tensile and fracture properties of the specimen under the quasistatic loading, the Brazilian disc splitting method and the notched semicircular bend (NSCB) method were used to test the tensile properties of coal specimens, and the fracture ...
Shuang Gong, Zhen Wang, Lei Zhou, Wen Wang   +3 more
doaj   +1 more source

Elastic fracture toughness for ductile metal pipes with circumferential surface cracks [PDF]

, 2017
Surface cracks have long been recognized as a major cause for potential failures of metal pipes. In fracture analysis, the widely used method is based on linear elastic fracture mechanics.
Fu, Guoyang, Li, Chun-Qing, Yang, Shangtong   +2 more
core   +1 more source

Creep Properties and Deformation Mechanism of Additively Manufactured NiAl‐CrMo Composites

Advanced Engineering Materials, EarlyView.
Additively manufactured NiAl‐CrMo composites contain numerous interfaces and cell boundaries that control their creep response. At 700°C under high applied stress, creep is dominated by dislocation‐controlled power‐law mechanisms. At 800°C–900°C and lower stresses, creep is primarily diffusion‐controlled along cell boundaries.
Jan Vollhüter, Andreas Bezold, Johan Westraadt, Katharina Fiegl, Subham Chattoraj, Benjamin Wahlmann, Carolin Körner, Michael Mills, Mathias Göken, Steffen Neumeier   +9 more
wiley   +1 more source

Research on the Size Effect of Unstable Fracture Toughness by the Modified Maximum Tangential Stress (MMTS) Criterion

Advances in Civil Engineering, 2020
This paper investigates the unstable fracture toughness of specimens of different heights using the double-K model for three-point bending tests on notched concrete beams.
Jian Li, Zhao-Wen Du, Zhong-Ping Guo, De-Chun Ai   +3 more
doaj   +1 more source

Fracture Behavior of Single-Crystal Sapphire in Different Crystal Orientations

Crystals, 2021
In order to study the anisotropy of fracture toughness and fracture mechanism of single-crystal sapphire, the three-point bending tests and the single-edge V-notch beam (SEVNB) were used to test the fracture toughness of A-plane, C-plane, and M-plane ...
Shizhan Huang, Jiaming Lin, Ningchang Wang, Bicheng Guo, Feng Jiang, Qiuling Wen, Xizhao Lu   +6 more
doaj   +1 more source

The effect of ceria co-doping on chemical stability and fracture toughness of Y-TZP [PDF]

, 1995
The fracture toughness and ageing resistance of yttria, ceria-stabilized tetragonal zirconia polycrystals (Y, Ce-TZP) were evaluated as a function of grain size and ceria content.
Boutz, M.M.R., Burggraaf, A.J., Kreuwel, K., Langerak, B. van, Olde Scholtenhuis, R.J.M., Winnubst, A.J.A.   +5 more
core   +2 more sources

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

Advanced 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, Jixing Lin, Yuncang Li, Li Zhu, Paul F. A. Wright, Cuie Wen   +5 more
wiley   +1 more source

Mezzo-scopic Analysis of Fracture Toughness in Steels

Materials Research, 2002
The cleavage fracture toughness of steels was mezzo-scopically analyzed on the basis of the statistical local fracture criterion approach. The statistical stress criterion at the crack tip region suggests that the cleavage fracture toughness in steels ...
Miyata Takashi, Tagawa Tetsuya
doaj  

Vpliv podhlajevanja na lomno žilavost martenzitnega nerjavečega jekla AISI 420 [PDF]

, 2017
Cryogenic treatments have been employed over the last three decades in both tool and high-alloy steels to improve wear resistance, mainly through the transformation of retained austenite and the precipitation of fine carbides.
Perez Ipiña, Juan Elias, Prieto, Germán, Tuckart, Walter Roberto   +2 more
core   +1 more source