Results 21 to 30 of about 2,753,720 (285)

Effect of isothermal quenching on microstructure and hardness of GCr15 steel

Journal of Materials Research and Technology, 2021
Through hardness measurement and microstructure observation, the effect of isothermal quenching on the bainite transformation, the size and area fraction of carbides in GCr15 steel was studied. Results show that, at the solid solution temperature of 860 °
Y. Su, L.J. Miao, X.F. Yu, T.M. Liu, L. Liu, J.L. Liu   +5 more
doaj   +1 more source

Effect of dopants on the sintering behaviour and stability of tetragonal zirconia ceramics [PDF]

, 1992
The microstrueture development during non-isothermal and isothermal sintering has been studied for tetragonal zireonia ceramics (TZP) containing carious amounts of Y, Ce and Ti. Smaller grain sizes were obtained when Ce-TZP was doped with yttrium.
Burggraaf, A.J., Theunissen, G.S.A.M., Winnubst, A.J.A.   +2 more
core   +8 more sources

Transformation kinetics of carbide-free bainitic steels during isothermal holding above and below MS

Journal of Materials Research and Technology, 2020
The transformation kinetics of a low carbon bainitic steel was investigated using in situ confocal microscopy and dilatometry for isothermal treatments above and below the martensite start (MS) temperature.
Junyu Tian, Dr., Guang Xu, Dr., Haijiang Hu, Dr., Xiang Wang, Dr., Hatem Zurob, Dr.   +4 more
doaj   +1 more source

A study of deformation behavior and stability of retained austenite in carbide-free bainitic steel during nanoindentation process

Journal of Materials Research and Technology, 2022
Different scale microstructures at different scales were obtained by one and two-step isothermal transformation. The deformation behavior and stability of retained austenite under the action of nanoindentation stress was investigated in these different ...
Songbo Zhou, Feng Hu, Kun Wang, Chengyang Hu, Hangyu Dong, Xiangliang Wan, Shi Cheng, R.D.K. Misra, Kaiming Wu   +8 more
doaj   +1 more source

Influence of Austenitisation Temperature and Time on Martensitic and Isothermal Bainite Phase Transformation of Spring Steel

Metals, 2022
The influence of austenitisation temperature and time on the martensitic and isothermal bainite transformation of 51CrV4 spring steel was analysed. Based on the analysis of dilatometric curves, the martensite start temperatures (MS) were determined at ...
Anže Bajželj, Jaka Burja
doaj   +1 more source

The Study of Phase Transformation Behaviors for 38MnB5Nb Ultra High-Strength Steel by CCT Curves and TTT Curves

Metals, 2023
To elucidate the phase transformation behaviors for 38MnB5Nb ultra high-strength steel, the continuous cooling transformation (CCT) and time-temperature-transformation (TTT) curves were determined by the thermal expansion method with different cooling ...
Ping Luo, Xianjun Li, Wenliang Zhang, Xiao Liang, Zhunli Tan, Decheng Wang, Chao Jiang, Junqing Hou, Lizhuang Sun   +8 more
doaj   +1 more source

Thermal annealing study of swift heavy-ion irradiated zirconia [PDF]

, 2006
Sintered samples of monoclinic zirconia (alpha-ZrO2) have been irradiated at room temperature with 6.0-GeV Pb ions in the electronic slowing down regime.
Andrée Kahn-Harari, Benson S. W., Damask A. C., François Beuneu, François Couvreur, Jean-Marc Costantini, Maier J., Simeone D.   +7 more
core   +4 more sources

Method to Evaluate the Kinetics of Bainite Transformation in Low-Temperature Nanobainitic Steel Using Thermal Dilatation Curve Analysis

Metals, 2017
The aim of this work was to develop a method to evaluate the kinetics of bainite transformation by theoretical deduction and thermal dilatation curve analysis. A Gleeble-3500 thermomechanical simulator and dilatometer (DIL805A) were employed to study the
Yaowen Xu, Guang Xu, Xinping Mao, Gang Zhao, Siqian Bao   +4 more
doaj   +1 more source

Time–temperature–transformation diagram and microstructures of bulk glass forming Pd40Cu30Ni10P20 [PDF]

, 2000
Isothermal crystallization studies were performed on the bulk glass forming alloy Pd40Cu30Ni10P20 in the undercooled liquid region between the glass transition and liquidus temperature, resulting in a complete time–temperature–transformation (TTT ...
Johnson, William L., Löffler, Jörg F., Schroers, Jan   +2 more
core   +1 more source

Review on the prediction of residual stress in welded steel components [PDF]

, 2020
Residual stress after welding has negative effects on the service life of welded steel components or structures. This work reviews three most commonly used methods for predicting residual stress, namely, empirical, semi-empirical and process simulation ...
Abdel Wahab, Magd, Ni, Junyan, Zhuang, Xincun   +2 more
core   +1 more source