Twinning-induced dynamic recrystallization and micro-plastic mechanism during hot-rolling process of a magnesium alloy

2017 ◽  
Vol 699 ◽  
pp. 99-105 ◽  
Author(s):  
Jinhua Peng ◽  
Zhen Zhang ◽  
Yaozu Li ◽  
Wei Zhou ◽  
Yucheng Wu
Keyword(s):  
Magnesium Alloy ◽  
Dynamic Recrystallization ◽  
Hot Rolling ◽  
Rolling Process ◽  
Hot Rolling Process ◽  
Plastic Mechanism

Formulation Design and Experiments of Emulsion for Rolling Process of Magnesium Alloy

2011 ◽  
Vol 239-242 ◽  
pp. 2233-2239
Author(s):  
Zhi Qian Chen ◽  
Wen Bin Yu ◽  
Mei Tao Ouyang
Keyword(s):  
Magnesium Alloy ◽  
Hot Rolling ◽  
Anionic Surfactants ◽  
Rolling Process ◽  
Formulation Design ◽  
Base Oil ◽  
Microstructure And Properties ◽  
Hot Rolling Process ◽  
Main Components ◽  
Emulsifier Concentration

The formulation design and fundamental experiments of O/W type emulsions as lubricant and coolant in the hot rolling process of magnesium alloy were conducted in this work. The main components of emulsion were determined by the comparision of some candidates of base oil, polar oil additive and emulsifier in microstructure and properties, respectively. It is found that the conservation stability of emulsions is mainly dominated by the emulsifier concentration and type. The results showed that the suitable stability and microstructure was obtained by using compound emulsifier of nonionic and anionic surfactants. The feasible contents of both emulsifier and polar agents are about 10 percent, respectively.

Effect of Sn Addition on Corrosion Properties of As-Cast and Hot-Rolled AZ31 Magnesium Alloys

2017 ◽  
Vol 750 ◽  
pp. 124-128
Author(s):  
Yunus Turen ◽  
Didem Güzel ◽  
Huseyin Zengin ◽  
Yavuz Sun ◽  
Hayrettin Ahlatci
Keyword(s):  
Corrosion Resistance ◽  
Magnesium Alloy ◽  
Hot Rolling ◽  
Rolling Process ◽  
Az31 Magnesium Alloy ◽  
Corrosion Properties ◽  
Electric Resistance Furnace ◽  
Hot Rolling Process ◽  
Working Solution ◽  
Hot Rolled

In this study, the effect of Sn addition on corrosion resistance of as-cast and hot rolled AZ31 magnesium alloy was investigated. Sn additions were made by 0.2 wt%, 0.5 wt% and 1 wt%. An electric resistance furnace was used to produce alloys. Hot rolling process was performed at 350 °C by 40% thickness reduction at one rolling pass. Microstructure characterizations were performed by optical (OM) and scanning electron microscope (SEM). Immersion tests and electrochemical analyses were performed to investigate the corrosion resistance of the alloys. A 3.5% NaCl working solution at room temperature was used in both corrosion tests. The results showed that Sn addition decreased the primary dentrite size and restricted the growth of secondary dentritic arm. The as-cast structures transformed to dynamically recrystallized grain structures after hot-rolling process in all the alloys. Corrosion resistance of AZ31 magnesium alloy tended to decrease with Sn addition. This decrease was more clear in homogenized and hot-rolled states while there were some flactuations in as-cast states.

Dynamic Recrystallization Behavior of Zr-1Sn-0.3Nb Alloy During Hot Rolling Process

JOM ◽  
2017 ◽  
Vol 70 (7) ◽  
pp. 1106-1111 ◽  
Author(s):  
Siyu Zhao ◽  
Huiqun Liu ◽  
Gaoyong Lin ◽  
Yilan Jiang ◽  
Jian Xun
Keyword(s):  
Dynamic Recrystallization ◽  
Hot Rolling ◽  
Rolling Process ◽  
Recrystallization Behavior ◽  
Hot Rolling Process ◽  
Dynamic Recrystallization Behavior

Hot Rolling Process Simulation: Application to UIC-60 Rail Rolling

2010 ◽  
Vol 3 (1) ◽  
pp. 65-71
Author(s):  
Armindo Guerrero ◽  
Javier Belzunce ◽  
Covadonga Betegon ◽  
Julio Jorge ◽  
Francisco J. Vigil
Keyword(s):  
Hot Rolling ◽  
Process Simulation ◽  
Rolling Process ◽  
Hot Rolling Process

scholarly journals 3D-FEM Simulation of Hot Rolling Process and Characterization of the Resultant Microstructure of a Light-Weight Mn Steel

Crystals ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 569
Author(s):  
Ana Claudia González-Castillo ◽  
José de Jesús Cruz-Rivera ◽  
Mitsuo Osvaldo Ramos-Azpeitia ◽  
Pedro Garnica-González ◽  
Carlos Gamaliel Garay-Reyes ◽  
...  
Keyword(s):  
Hot Rolling ◽  
Thermomechanical Processing ◽  
Computational Simulation ◽  
Effective Strain ◽  
Fem Simulation ◽  
Rolling Process ◽  
3D Fem ◽  
Hot Rolling Process ◽  
Mn Steel

Computational simulation has become more important in the design of thermomechanical processing since it allows the optimization of associated parameters such as temperature, stresses, strains and phase transformations. This work presents the results of the three-dimensional Finite Element Method (FEM) simulation of the hot rolling process of a medium Mn steel using DEFORM-3D software. Temperature and effective strain distribution in the surface and center of the sheet were analyzed for different rolling passes; also the change in damage factor was evaluated. According to the hot rolling simulation results, experimental hot rolling parameters were established in order to obtain the desired microstructure avoiding the presence of ferrite precipitation during the process. The microstructural characterization of the hot rolled steel was carried out using optical microscopy (OM), scanning electron microscopy (SEM) and X-ray diffraction (XRD). It was found that the phases present in the steel after hot rolling are austenite and α′-martensite. Additionally, to understand the mechanical behavior, tensile tests were performed and concluded that this new steel can be catalogued in the third automotive generation.

Failure Analysis of a Working Roll Under the Influence of the Stress Field Due to Hot Rolling Process

2021 ◽  
Author(s):  
Reza Masoudi Nejad ◽  
Peyman Noroozian Rizi ◽  
Maedeh Sadat Zoei ◽  
Karim Aliakbari ◽  
Hossein Ghasemi
Keyword(s):  
Stress Field ◽  
Failure Analysis ◽  
Hot Rolling ◽  
Rolling Process ◽  
Hot Rolling Process
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