Results 81 to 90 of about 26,043 (296)

Deformation Behavior and Microstructure Evolution of the Cu2Ni-0.5Si-0.15Ag Alloy During Hot Compression [PDF]

, 2015
Hot deformation behavior of the Cu-2Ni-0.5Si-0.15Ag alloy was investigated by hot compression tests using the Gleeble-1500D thermo-simulator in the 873 K to 1073 K (600 C to 800 C) temperatures range with the 0.01 to 5 s1 strain rate.
Alex A. Volinsky, Hai T. Tran, Baohong Tian, Ping Liu, Zhe Chai, Qian-qian Xu, Yi Zhang   +6 more
core   +1 more source

External and Internal Cracking Caused by Heat Treatment in Laser Powder Bed Fusion‐Fabricated Inconel 738LC Components

Advanced Engineering Materials, EarlyView.
Manufacturing problems such as heat treatment‐induced cracking hinder the widespread application of the laser powder bed fusion (LPBF) process to superalloys. In this study, cracks in the LPBF components of Inconel 738LC superalloy are characterized after heat treatment at various temperature ranges, revealing two distinct cracking behaviors.
Kosuke Kuwabara, Masahiro Kusano, Ayako Ikeda, Toshio Osada, Makoto Watanabe   +4 more
wiley   +1 more source

Hot deformation behavior and flow-stress anomaly of 5Cr9Si3 valve steel at elevated temperatures

工程科学学报, 2015
The hot deformation behavior of 5Cr9Si3 valve steel was investigated by hot working simulation test at different hot working parameters. When the deformation temperature increases from 850 to 900℃ or from 1000 to 1100℃, the peak stress decreases; but ...
WU Yun-sheng, PENG Yi-chao, ZHANG Mai-cang, ZHENG Lei, DONG Jian-xin   +4 more
doaj   +1 more source

High-temperature deformation behavior and microstructural evolution of as-cast and hot rolled β21S alloy during hot deformation

Journal of Materials Research and Technology, 2020
In this study, the hot deformation behavior of an as-cast and hot rolled β21S alloy (Ti–15Mo–3Al–3Nb–0.2Si) was investigated. Based on the hot compression tests, which were conducted at high temperatures (800–1200 °C) using different strain rates (10−2 ...
Chan Woong Park, Mi Seon Choi, Hyunseok Lee, Jonghun Yoon, Hamid Reza Javadinejad, Jeoung Han Kim   +5 more
doaj   +1 more source

Extrusion‐Based Additive Manufacturing of Advanced Ceramics: Strengthening Mechanisms and Process Optimization Review

Advanced Engineering Materials, EarlyView.
This review comprehensively evaluates extrusion‐based additive manufacturing for advanced ceramics, detailing feedstock options and key process parameters. By critically addressing defect mechanisms like porosity and cracking, the work highlights optimization strategies through machine learning and advanced postprocessing.
Meisam Bakhtiari, Mohammad Hadi Sheikh‐Ansari, Avinash Borgaonkar, Mehran Dadkhah, Abdollah Saboori   +4 more
wiley   +1 more source

Impact of MgO Additions on the Oxidation Resistance and Compression Behavior of Vanadium Alloys

Advanced Engineering Materials, EarlyView.
An increase in oxidation resistance at 600 °C is achieved for alloys containing more than 2.5 wt.% MgO. It has been established that, along with V2O5, MgO6V2, and Mg2O7V2 are formed, which are presumed to enhance oxidative stability. Furthermore, the possible transformation of Mg‐vanadates through reaction with CO2, which presumably occurs in this ...
Ievgen Solodkyi, Mathias Galetz, Georg Hasemann, Fabian Lanoy, Emma White, Manja Krüger   +5 more
wiley   +1 more source

Laboratory verification of predicted permanent deformation in asphalt materials following climate change. [PDF]

, 2011
In the past a change in temperature of 5°C most often occurred over intervals of thousands of years. According to estimates by the IPCC, in the XXI century is expected an increase in average temperatures in Europe between 1.8 and 4.0°C in the best case ...
Anastasio, Sara
core  

An experimental investigation of the behaviour of steels over large temperature and strain rate ranges [PDF]

, 2013
During forging and machining manufacturing processes, the material is subject to large strains at high strain rates which provoke local heating and microstructural changes.
GERMAIN, Guénaël, HOR, Anis, LEBRUN, Jean-Lou, MOREL, Franck   +3 more
core   +1 more source

Microstructure Modification of Additively Manufactured Mo–9Si–8B by Annealing and Its Effects on High‐Temperature Mechanical Properties

Advanced Engineering Materials, EarlyView.
Postbuild annealing systematically modifies the phase fractions and morphology of EB‐PBF processed Mo–9Si–8B. Quantitative microstructure–property correlations reveal how controlled phase evolution enhances high‐temperature compressive strength and creep resistance.
Christopher Schmidt, Yong Chen, Georg Hasemann, Benjamin Wahlmann, Carolin Körner, Manja Krüger   +5 more
wiley   +1 more source

Influence of δ Phase Content on Hot Deformation Behavior of Ni-Based Superalloy IN718 [PDF]

, 2011
The effect of δ phase content on the hot deformation behavior of alloy IN718 has been investigated using isothermal compression tests. The results indicated that the δ phase has a significant effect on the deformation behavior of alloy IN718 during hot ...
Shi Hong Zhang, Ming Cheng, Hai Yan Zhang   +2 more
core   +1 more source