Results 21 to 30 of about 846 (168)

Effect of γ→α Phase Transformation on Refining Austenite Grains of Microalloyed Steel in Continuous Casting by Simulation

High Temperature Materials and Processes, 2016
The formation of coarse prior austenite grain is a key factor to promote transverse crack, and the transverse crack susceptibility can be reduced by refining the austenite grain size.
Liu Jiang, Wen Guanghua, Li Yunfeng, Tang Ping, Luo Linqing   +4 more
doaj   +1 more source

Mathematical Models of Austenite Grain Growth of 8Cr4Mo4Ni4V Aviation Bearing Steel at High Temperature

Cailiao gongcheng, 2018
Taking 8Cr4Mo4Ni4V bearing steel as the experimental material, the effect of heating temperature and holding time on austenite grain size was studied by austenite isothermal experiment.
CAI Xin, SUN Ming-yue, WANG Wei, KANG Xiu-hong, LI Dian-zhong   +4 more
doaj   +1 more source

Austenite grain growth calculation of 0.028% Nb steel [PDF]

Journal of Mining and Metallurgy. Section B: Metallurgy, 2011
Modeling of microstructural evolution has become a powerful tool for materials and process design by providing quantitative relationships for microstructure, composition and processing.
Priadi D., Napitupulu R.A.M., Siradj E.S.   +2 more
doaj   +1 more source

Research progress on austenite grain growth and second-phase particle control technology in automotive gear steel

工程科学学报, 2023
With the implementation of the global two-carbon policy, energy saving and CO2 emission reduction have become important developmental goals of the automobile manufacturing industry.
Zhipeng DAI, Jian YANG, Qingsong ZHANG, Yun BAI, Xiaolin WU   +4 more
doaj   +1 more source

A prediction model for austenite grain size distribution of casting slab in thermal rebound process: Considering α-ferrite precipitation and re-austenization

Journal of Materials Research and Technology
The precipitation and re-austenitization behavior of α-ferrite during thermal rebound process of casting slab are crucial to the austenite grain size distribution. Accurately obtaining austenite grain size distribution plays an important guiding role for
Songyuan Ai, Yanming Zhang, Mujun Long, Haohao Zhang, Lihua Wan, Danbin Jia, Dengfu Chen   +6 more
doaj   +1 more source

Effects of Alloying Element and Heat Treatment on Mechanical Properties of Alloy Steels

International Journal of Engineering Materials and Manufacture, 2023
The effects of Cr and Ni on three different types of steel with different carbon ratios under constant conditions such as the welding current 120A, voltage 80V, Diameter 10 mm and angle 60 degree was observed.
Umma Abdullahi
doaj   +3 more sources

Effect of Preheat Treatment Process on Austenite Grain Growth Behavior in Gear Steel SCr420H for High Temperature Carburization

Teshugang, 2023
The effects of heating temperature and holding time on the austenite grain growth behavior of SCr420H gear steel samples with different AlN precipitation states were experimentally investigated.
Su Liang, Gong Shuo, Wang Fuming
doaj  

Microstructural path analysis of martensite burst

Materials Research, 2010
Modeling the martensite reaction requires reckoning with spatial aspects of the reaction. For that, we used formal kinetics, more specifically, the microstructural path method (MPM) to analyze the microstructure observed in a burst.
Paulo Rangel Rios, José Roberto Costa Guimarães   +1 more
doaj   +1 more source

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth, Tomáš Babinský, Jan Lars Riedel, Wen Hao Kan, Aijun Huang, Martin Heilmaier, Ivo Šulák   +6 more
wiley   +1 more source

Structure and Characteristics of Special Steel RL40 for Flexspline of Harmonic Reduction Gear

Teshugang, 2021
The materials basic characteristics of structure, austenite grain coarsening and phase transformation point of RL40 steel for flexpline (/% ：0.40C, 0.90Cr, l.
王洋, 王欢, 张朝磊, 王浩, 张旭, 苗红生   +5 more
doaj