Results 1 to 10 of about 229 (137)

Effect of Two-Step Austempering Process on Transformation Kinetics of Nanostructured Bainitic Steel. [PDF]

Materials (Basel), 2019
The two-step austempering process has been reported to be an effective method to accelerate the bainitic transformation process by introducing martensite (Q-M-B). However, in this study, it was found that the Q-M-B process reduced the incubation time, but the transformation duration remained nearly unchanged.
Chu C, Qin Y, Li X, Yang Z, Zhang F, Guo C, Long X, You L.   +7 more
europepmc   +7 more sources

Effect of Cu content on microstructures and mechanical properties of ADI treated by twostep austempering process [PDF]

China Foundry, 2019
The effect of Cu content on the microstructures and mechanical properties (yield strength, ultimate tensile strength, impact energy, fracture toughness) of austempering ductile iron (ADI) treated by two-step austempering process were investigated. High
Peng-yue Yi, Er-jun Guo, Li-ping Wang
doaj   +6 more sources

Effects of two-step austempering processes on the wear resistance and fatigue lifetime of high-carbon nanostructured bainitic steel

Journal of Materials Research and Technology
The previous research on two-step austempering processes have been mainly focused on the bainitic transformation kinetics, with few details the relationships between the parameters of two-step austempering process and the wear properties and fatigue ...
Dongyun Sun, Xiaoyong Feng, Peng Zhang, Xiaowen Sun, Zhinan Yang, Xiaoyan Long, Fucheng Zhang   +6 more
doaj   +5 more sources

Effect of Multi-Step Austempering Treatment on the Microstructure and Mechanical Properties of a High Silicon Carbide-Free Bainitic Steel with Bimodal Bainite Distribution [PDF]

Metals, 2021
The effect of multi-step austempering treatments on the microstructure and mechanical properties of a novel medium carbon high silicon carbide-free bainitic steel was studied.
Mattia Franceschi, Alvise Miotti Bettanini, Luca Pezzato, Manuele Dabalà, Pascal J. Jacques   +4 more
doaj   +4 more sources

Microstructure and mechanical behaviors of grinding balls produced by dual matrix structure two-step austempering process

Journal of Materials Research and Technology, 2020
The austempered ductile iron (ADI) grinding balls were austenitized at 900 °C for 2 h and then incomplete quenched in a sodium silicate solution for 100 s, after that austempered in an isothermal furnace at 230 °C for 1 h.
Hongyu Zhou, phD, Yaqiang Li, phD, Zheng Yin, Master, Minrui Ran, phD, Shibin Liu, phD, Ying Huang, Master, Weidong Zhang, phD, Wenyue Zheng, phD, Junyou Liu, phD   +8 more
doaj   +4 more sources

Insights into effect of first-step austempering temperature on the microstructure and properties of austempered ductile iron

Materials Research Express, 2021
Austempered ductile iron (ADI) is a revolutionary material with high strength and hardness combined with excellent ductility and toughness. The discovery of a two-step austempering process has resulted in superior combination of all the mechanical ...
Yu Zhang, Erjun Guo, Liping Wang, Sicong Zhao, Xiaoyu Liu, Pengyue Yi, Yan Li, Yicheng Feng, Meihui Song   +8 more
doaj   +2 more sources

MICROSTRUCTURAL CHARACTERISTICS, MECHANICAL AND WEAR BEHAVIOUR OF ALUMINIUM-ALLOYED DUCTILE IRONS SUBJECTED TO TWO AUSTEMPERING PROCESSES

Acta Polytechnica, 2020
The effect of aluminium addition and austempering processes on the microstructures, mechanical and wear properties of rotary melting furnace processed ductile irons was investigated.
Abdullahi Olawale Adebayo, Akinlabi Oyetunji, Kenneth Kenayo Alaneme   +2 more
doaj   +3 more sources

Microstructure and mechanical properties of two-step Cu-alloyed ADI treated by different second step austempering temperatures and times [PDF]

China Foundry, 2019
Austempering ductile iron (ADI) is an attractive material due to its excellent comprehensive mechanical properties. However, the deficit in elongation and toughness always threatens its security application.
Peng-yue Yi, Er-jun Guo, Li-ping Wang
doaj   +3 more sources

Abrasion resistance of ductile iron austempered by the two-step process [PDF]

Materials Science and Engineering: A, 2008
Abstract The present work focuses in the study of the effect that a new two-step austempering heat treatment process, developed by Putatunda, has on the mechanical properties with emphasis on the response to the abrasive wear. A ductile cast iron melt was prepared in an industrial facility obtaining both, Y-blocks (ASTM A 897) to be used for the ...
Francucci, Gaston Martin, Sikora, Jorge Antonio, Dommarco, Ricardo   +2 more
openaire   +3 more sources

Effect of two-step austempering process on carbidic ductile iron

IOP Conference Series: Materials Science and Engineering, 2019
Abstract The two-step austempering process when applied to ductile iron, results in significant improvement in mechanical properties due to the strengthening of the ausferitic matrix. The present work was undertaken to investigate the effect of the two-step austempering process on carbidic ductile iron.
V Dakre, A Likhite, S U Pathak, D R Peshwe   +3 more
openaire   +1 more source