Results 31 to 40 of about 779 (213)

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

Advanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar, Dhanadeep Dutta, G. Bharat Reddy   +2 more
wiley   +1 more source

Temperature-dependent thermo-elastic parameter identification for composites using thermal modal data

Advances in Mechanical Engineering, 2019
To accurately determine the temperature-dependent parameters of composites, a thermo-elastic parameter identification approach using thermal modal data is proposed in this article.
Dong Jiang, Yu Xu, Donghui Zhu, Zhifu Cao   +3 more
doaj   +1 more source

Further study on thermal deformation reduction for CFRP-based improved ball screws

Advanced Composites Letters, 2020
To determine the thermal deformation of ball screw in actual working condition, a novel method for determining thermal deformation of ball screws in complicated working condition is proposed based on G-code and finite-element (FE) method.
Xiangsheng Gao, Yueyang Guo, Min Wang, Tao Zan   +3 more
doaj   +1 more source

Curvature Change in Laser-Assisted Bending of Inconel 718

Physical Sciences Forum, 2022
Laser heating is industrially applied to facilitate plastic shaping, especially for materials difficult to form due to their high hardness or brittleness.
Jacek Widłaszewski, Marcin Nowak, Zdzisław Nowak, Piotr Kurp   +3 more
doaj   +1 more source

Thermal elastic deformation of the layered covering on the concave part of a road

Strength of Materials and Theory of Structures, 2019
The problem on numerical investigation of thermo-elastic deformation of a layered coating on the concave and rectilinear road parts is stated. The constitutive equations are formulated, their finite-element analogues are constructed. The load versions at different values of geometric, structural, and temperature parameters are taken into account.The ...
Gaidaichuk, Viktor, Gustieliev, Oleksandr, Radkevich, Anatolii, Shevchuk, Liudmyla, Shlyun, Nataliia   +4 more
openaire   +3 more sources

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth, Tomáš Babinský, Jan Lars Riedel, Wen Hao Kan, Aijun Huang, Martin Heilmaier, Ivo Šulák   +6 more
wiley   +1 more source

Nonlinear dynamic response of ES-FGM plate under blast load

Vietnam Journal of Mechanics, 2018
The paper studies nonlinear dynamic response of an eccentrically stiffened FGM (ES-FGM) plates resting on the elastic foundations subjected to blast and thermal loads with temperature dependent material properties using the Reddy's higher order shear ...
Pham Hong Cong, Nguyen Dinh Duc
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

Creep‐Induced Microstructural Evolution in an A2‐B2 Superalloy

Advanced Engineering Materials, EarlyView.
A 27.3Ta‐27.3Mo‐27.3Ti‐8Cr‐10Al (at.%) refractory high‐entropy alloy with precipitation‐strengthened A2‐B2 microstructure was studied by creep tests at 1030°C, which demonstrate a transition in deformation mechanisms in the range of 100–150 MPa applied stress. This is associated with changes in dislocation–precipitate interactions. Relevant deformation
Liu Yang, Aparajita Pramanik, Sandipan Sen, Shubhashis Dixit, Marcel Muench, R. J. Vikram, Daniel Schliephake, Yolita M. Eggeler, Ankur Chauhan, Martin Heilmaier, Alexander Kauffmann   +10 more
wiley   +1 more source

Effects of Deformation and Non - harmonic Vibration on Effective Charge, Thermal Expansion and Elastic Modulus of SiC

四川大学学报. 自然科学版, 2018
On the consideration of the deformation and atomic non-harmonic vibration, this paper applies the methods of Harrison bonding orbit and solid state physics to obtain thermal expansion coefficient and elastic modulus of hexagonal two-dimensional graphene ...
ZHA Xiao-Ting, CHENG Zheng-Fu, ZHENG Rui-Lun, ZHOU En-Min, YANG Wen-Yao   +4 more
doaj