Results 21 to 30 of about 1,105,114 (250)

Investigation into effect of grain sizes on deformation behavior of AZ31 alloys in different loading conditions

Journal of Materials Research and Technology, 2023
The AZ31 magnesium alloy with different grain sizes was prepared by adjusting the heat treatment process, and then the tension and compression tests were carried out to explore the effect of grain sizes and loading conditions on the microstructures and ...
Huanhuan Chen, Zhen Zhang, Shilai Hu, Jinhua Peng, Zijian Zhou, Shiju Cao, Xiaodong Du, Haigen Wei   +7 more
doaj   +1 more source

Damage evaluation of ferrite steel during fatigue crack initiation process using misorientation parameter by EBSD

Nihon Kikai Gakkai ronbunshu, 2014
Orientation changes during fatigue crack initiation process in ferrite steels with different grain size were evaluated by the electron backscatter diffraction (EBSD).
Mamoru HAYAKAWA, Masayuki WAKITA, Eisuke NAKAYAMA   +2 more
doaj   +1 more source

Effect of local anisotropy on fatigue crack initiation in a coarse grained nickel-base superalloy

MATEC Web of Conferences, 2018
In the present work, theoretical approaches, based on grain orientation dependent Young’s modulus and Schmid factor are used to describe the influence of local grain orientation on crack initiation behaviour of the coarse grained nickel base superalloy ...
Engel Benedikt, Beck Tilmann, Moch Nadine, Gottschalk Hanno, Schmitz Sebastian   +4 more
doaj   +1 more source

In-situ SEM-EBSD investigation of the low-cycle fatigue deformation behavior of Inconel 718 at grain-scale

Journal of Materials Research and Technology, 2023
The low-cycle fatigue (LCF) deformation behavior of the Inconel 718 (IN718) specimen with micro-notch was investigated by an in-situ fatigue test inside a scanning electron microscope (SEM) combined with electron backscattered diffraction (EBSD).
Guanghao Guo, Wenxiang Jiang, Xuan Liu, Jutian Chen, Longyu Li, Jin Wang, Yuefei Zhang, Ze Zhang   +7 more
doaj   +1 more source

Probabilistic Modeling of Slip System-Based Shear Stresses and Fatigue Behavior of Coarse-Grained Ni-Base Superalloy Considering Local Grain Anisotropy and Grain Orientation

Metals, 2019
New probabilistic lifetime approaches for coarse grained Ni-base superalloys supplement current deterministic gas turbine component design philosophies; in order to reduce safety factors and push design limits.
Benedikt Engel, Lucas Mäde, Philipp Lion, Nadine Moch, Hanno Gottschalk, Tilmann Beck   +5 more
doaj   +1 more source

Effect of Extrusion Texture on Corrosion Behaviour of D16T Drill Pipe in 3.5% NaCl Solution

International Journal of Electrochemical Science, 2018
The role of texture in the initiation and expansion of corrosion pits for a D16T aluminium drilling pipe in 3.5% NaCl solution was investigated by immersion and electrochemical tests.
Xiaohong Wang, Zhengwei Peng, Shiyu Zhong, Guorong Wang, Qiaogang Hu, Yuanhua Lin   +5 more
doaj   +1 more source

Abnormal grain growth in thin wires of commercially pure iron with anisotropic microstructure

Journal of Materials Research and Technology, 2020
This work reports the behavior of annealed commercially pure cold-drawn thin iron wires. Primary recrystallization is complete after holding for 180 s at 1123 K. After recrystallization, grain growth takes place within the central region but not close to
D.R. Almeida Jr., P.R. Rios, D. Zöllner, H.R.Z. Sandim   +3 more
doaj   +1 more source

Effect of crystallographic properties on low cycle fatigue crack initiation at elevated temperature for Ni-based directionally solidified superalloy

Nihon Kikai Gakkai ronbunshu, 2016
Low cycle fatigue tests at elevated temperature were conducted on a Ni-based directionally solidified superalloy subjected to transverse loading. To investigate the effect of the arrangement and the orientation of crystal grains on the crack initiation ...
Takashi YOKOYAMA, Masaru SEKIHARA
doaj   +1 more source

Towards a grain-scale modeling of crack initiation in rolling contact fatigue - Part 2: Persistent slip band modeling

, 2021
International audienceRolling Contact Fatigue (RCF) is the result of crack initiation and propagation leading to surface damages. This study proposes a mesoscopic model for RCF crack initiation simulation.
Noyel, Jean-Philippe, Kleber, Xavier, Bossy, Etienne, Ville, Fabrice, Sainsot, Philippe, Fourel, Lucas, Etienne Bossy, Philippe Sainsot, Jean-Philippe Noyel, Fabrice Ville, Lucas Fourel, Xavier Kleber   +11 more
core   +1 more source

Effect of crystallographic properties on low cycle fatigue crack initiation at elevated temperature for Ni-based directionally solidified superalloy with small holes

Nihon Kikai Gakkai ronbunshu, 2016
Low cycle fatigue tests at elevated temperature were conducted on a Ni-based directionally solidified superalloy with small holes subjected to transverse loading.
Takashi YOKOYAMA, Masaru SEKIHARA
doaj   +1 more source