Results 21 to 30 of about 14,484 (149)

Quench sensitivity and isothermal transformation behavior of 7075-H18 aluminum alloy sheet

Cailiao gongcheng, 2022
The 7075-H18 high-strength aluminum alloy sheet with a thickness of 2 mm is selected as a research object. The quench sensitivity, isothermal phase transformation and kinetics of the alloy were systematically studied via a variety of experimental and ...
WANG Gang, GU Zhengwei, LI Xin, YU Ge
doaj   +1 more source

Effect of Transformation Temperature on Microstructure andMechanical Properties of Bainite [PDF]

Engineering and Technology Journal, 2012
Fully bainitic microstructure can be obtained by isothermal transformation at temperatures within the range of bainite transformation. Both transformation temperature and time determine the phase fraction, the scale of the resultant microstructure and ...
Hala Salman Hasan
doaj   +1 more source

Experimental research of turbulent flow frequency spectra [PDF]

INCAS Bulletin, 2020
Hydraulic and heat transfer processes play a very important role in the design and prototyping of aerospace technology. In most cases this technique works under non-isothermal conditions.
Viacheslav KRAEV
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Austenite Formation Kinetics of Dual-Phase Steels: Insights from a Mixed-Control Model Under Different Heating Conditions

Modelling
A semi-analytical mixed-control model based on the Non-Partitioned Local Equilibrium (NPLE) assumption was developed to simulate the austenite phase transformation kinetics during heating and isothermal processes. The model was validated by comparing the
Huifang Lan, Xiaoying Hui, Jiangbo Du, Shuai Tang, Linxiu Du   +4 more
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Dynamic Diffraction Studies on the Crystallization, Phase Transformation, and Activation Energies in Anodized Titania Nanotubes

Nanomaterials, 2018
The influence of calcination time on the phase transformation and crystallization kinetics of anodized titania nanotube arrays was studied using in-situ isothermal and non-isothermal synchrotron radiation diffraction from room temperature to 900 °C ...
Hani Albetran, Victor Vega, Victor M. Prida, It-Meng Low   +3 more
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Conditions of austenite diffusional transformation in steel of Cr–3Ni–Mo–V-composition with high austenite stability

Записки Горного института, 2018
The paper investigated the bainitic steel of 10KHN3MFA grade, which is characterized by the increased tendency to display structural heredity in the forgings with large cross-sections.
V. V. Tsukanov, N. V. Lebedeva, Yu. M. Markova   +2 more
doaj   +1 more source

The role of ausforming in the stability of retained austenite in a medium-C carbide-free bainitic steel

Journal of Materials Research and Technology, 2020
In this work, the influence of thermomechanical treatments, consisting of a combination of ausforming followed by isothermal holding and cooling to room temperature, on the stability of retained austenite of a carbide-free medium carbon-high silicon ...
M. Zorgani, Carlos Garcia-Mateo, M. Jahazi   +2 more
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Synergistic effects of ultrasonic vibration and isothermal treatment on the peritectic transformation and microstructure evolution of Cu–Sn alloy

Journal of Materials Research and Technology
To facilitate and even complete the peritectic transformation, the ultrasonic vibration (USV) and isothermal treatment were applied to the solidification process of Cu–70Sn alloy. It was found that the peritectic transformation was difficult to carry out
Xiaogang Fang, Yeliang Zhu, Shulin Lv, Shusen Wu, Shifeng Luo, Siliang Yan, Yong Ma, Jiguang Liu, Youwen Yang, Yiqing Chen   +9 more
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Long-Term Isothermal Phase Transformation in Lead Zirconate

Materials, 2022
Lead zirconate PbZrO3 has been the subject of research interest for several dozen years. Recently, even its antiferroelectric properties have started to be questioned, and many researchers still deal with the so-called intermediate phase below Curie temperature (TC), whose existence is not fully understood.
Dariusz Kajewski, Irena Jankowska-Sumara, Jae-Hyeon Ko, Jeong Woo Lee, Syed Furqan Ul Hassan Naqvi, Rafał Sitko, Andrzej Majchrowski, Krystian Roleder   +7 more
openaire   +4 more sources

Kinetics and mechanism of arsenic sulfides oxidation [PDF]

Journal of Mining and Metallurgy. Section B: Metallurgy, 2009
The kinetics of oxidation process of realgar and orpiment natural mineral mixture was studied under non-isothermal conditions. The proposed reaction mechanism and chemical transformation investigated by SEM-EDX, XRD and thermal analysis, are discussed ...
Štrbac N., Mihajlović I., Minić D., Živković D., Živković Ž.   +4 more
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