Results 31 to 40 of about 2,782 (221)

Characterisation and Development of Nanostructured, Ultrahigh Strength, and Ductile Bainitic Steels

, 2006
The purpose of the present work was to characterise and further develop a novel nanostructured type of bainitic steel. Three chemical compositions were considered with different concentrations of Al and Co.
Sherif MY, Sherif, Mohamed
core   +1 more source

Study on Kinetics of Transformation in Medium Carbon Steel Bainite at Different Isothermal Temperatures

, 2021
Ultra-fine carbide-free bainitic (UCFB) steel, also known as nano-bainite (NB) steel, is composed of bainitic ferrite laths with nanoscale thickness and carbon-rich film-like retained austenite located between laths.
Wei Pei, Rongjian Qie, Aimin Zhao, Yue Zhang, Wei Liu   +4 more
core   +1 more source

Continuous Cooling Transformation of Undeformed and Deformed High Strength Crack-Arrest Steel Plates for Large Container Ships

High Temperature Materials and Processes, 2019
The phase transformation behavior of crack-arrest steel during continuous cooling either with or without deformation at high temperatures was investigated.
Qi Yongfeng, Li Jing, Shi Chengbin, Zhu Qintian   +3 more
doaj   +1 more source

Thermodynamic analysis and strength-toughness research of nanobainite

工程科学学报, 2016
In view of slow phase transformation rate in high-carbon,silicon-rich and low-alloy bainite steel(nanostructured bainite steel),the effects of alloy elements on the overall kinetics of low temperature bainite phase transformation were analyzed by using ...
ZHI Chao, ZHAO Ai-min, HE Jian-guo, ZHAO Fu-qing, CHE Ying-jian   +4 more
doaj   +1 more source

Evaluation of displacive models for bainite transformation kinetics in steels

, 2013
Several kinetic models for bainite transformation have been widely applied in industry and research. The majority of these models, that do not consider the effect of cementite precipitation during bainite transformation, were validated in high silicon ...
García Mateo, Carlos, García Caballero, Francisca, Santofimia, Maria Jesús, Capdevila, Carlos, García de Andrés, Carlos   +4 more
core   +1 more source

Study on Continuous Cooling Phase Transition of 12Cr1MoV Pearlite Heat-resistant Steel [PDF]

Teshugang
The continuous cooling transformation of 12Cr1MoV perlitic heat-resistant steel was studied by means of thermal expansion tester， laser confocal microscope， microhardness tester and scanning electron microscope， the continuous cooling transformation （CCT）
Li Yaqiang, Li Yingying, Li Chuan, Han Baochen, Shi Jingqing   +4 more
doaj   +2 more sources

Achieving ultrafine martensite-bainite duplex microstructures by combining prior cold deformation with chronological control of phase transformation in GCr15 bearing steel

Journal of Materials Research and Technology
In this work, a strategy is proposed by combining prior cold deformation with chronological control of phase transformation to achieve ultrafine martensite-bainite duplex microstructures in GCr15 bearing steel, which is the specimens with 0∼45 % prior ...
Xiaohui Lu, Guanglin Yuan, Xuanhong Yan, Rushan Lu, Huajie Shi, Yinsong Chen, Dongsheng Qian, Lin Hua   +7 more
doaj   +1 more source

Kinetic models of multiple-stage martensite transformation and subsequent isothermal bainite formation excluding ε-carbide precipitation in intercritical quenching and partitioning steels

Materials & Design, 2019
The kinetic models of multiple-stage martensite transformation and subsequent isothermal bainite formation were investigated in intercritical quenching and partitioning steels. The modified K-M model that considering instantaneous kinetic characteristics
Fei Peng, Yunbo Xu, Dingting Han, Xingli Gu   +3 more
doaj   +1 more source

Bainite kinetic energy, activation energy, and tribological behavior of austempered AISI4340 steel

Journal of Materials Research and Technology, 2021
A study has been made of the effect of heat-treatment on the microstructures of commercial quality AISI4340 steel after austenitizing at 1128 K and austempering at temperatures ranging from 561 K to 644 K.
Xue Han, Jiayu Hou, Zhenpu Zhang, Gary C. Barber, Feng Qiu, Fang Chang, Shu-Qing Kou   +6 more
doaj   +1 more source

Karl Popper and the Mechanisms of Hydrogen Embrittlement

Advanced Engineering Materials, EarlyView.
Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
wiley   +1 more source