Characterization of beryllium foil produced by hot rolling

1992 ◽  
Vol 27 (10) ◽  
pp. 2653-2659 ◽  
Author(s):  
J. Wittenauer ◽  
T. G. Nieh ◽  
G. Waychunas
Keyword(s):  
Hot Rolling ◽  
Beryllium Foil

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.

Characterization of Strain Induced Precipitation of Nb in Microalloyed Austenite Using Classical and Novel Techniques

2005 ◽  
Vol 500-501 ◽  
pp. 677-686 ◽  
Author(s):  
C. Iparraguirre ◽  
Ana Isabel Fernández-Calvo ◽  
Beatriz López ◽  
Colin Scott ◽  
A. Rose ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Hot Rolling ◽  
Precipitate Size ◽  
Chemical Extraction ◽  
Characterization Methods ◽  
Transmission Electron ◽  
Selective Chemical ◽  
Deformation Modes

In this contribution strain induced precipitation of niobium carbides has been analyzed making use of different hot-rolling simulators and combining the advanced precipitation characterization methods of selective chemical extraction and transmission electron microscopy. A laboratory cast Fe-0.1C-0.07Nb alloy has been employed for the study. Thermomechanical simulations were carried out by torsion, plastodilatometry and plane strain compression techniques. The results have shown that, in spite of the different deformation modes a relatively good correlation is obtained between the measurements of the precipitate size and the amount of Nb precipitated in the different experiments.

Characterization of W80Cu20 alloy sheet prepared by hot-rolling

Rare Metals ◽  
2013 ◽  
Vol 32 (6) ◽  
pp. 569-573 ◽  
Author(s):  
Hu-Ping Guo ◽  
Wen-Ge Chen ◽  
Hui Zhang
Keyword(s):  
Hot Rolling ◽  
Alloy Sheet

Characterization of Mg-Al Sheet Clad Materials Fabricated by Hot Rolling

2007 ◽  
pp. 409-412
Author(s):  
Jae Seol Lee ◽  
Hyeon Taek Son ◽  
Ki Yong Lee ◽  
Soon Sub Park ◽  
Dae Guen Kim ◽  
...  
Keyword(s):  
Hot Rolling

scholarly journals Oxide scale characterization of ferritic stainless steel and its deformation and friction in hot rolling

2015 ◽  
Vol 84 ◽  
pp. 61-70 ◽  
Author(s):  
Xiawei Cheng ◽  
Zhengyi Jiang ◽  
Dongbin Wei ◽  
Liang Hao ◽  
Jingwei Zhao ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Oxide Scale ◽  
Ferritic Stainless Steel ◽  
Hot Rolling ◽  
Scale Characterization

Microstructure Evolution Characterization of Multi-Pass Hot Rolling Simulation of Nb-Ti Microalloyed Steel

2014 ◽  
Vol 936 ◽  
pp. 1141-1145
Author(s):  
Bin Shen ◽  
Song He Zhu ◽  
Heng Hua Zhang
Keyword(s):  
Hot Rolling ◽  
Static Recrystallization ◽  
Microalloyed Steel ◽  
Measured Data ◽  
Mean Flow ◽  
Austenite Grain Size ◽  
Austenite Grain ◽  
Mean Flow Stress ◽  
The Mean

In this study, a improved mathematical model was developed for Nb-Ti microalloyed steel during hot rolling simulation. Using the compression test, the dynamic and static recrystallization characteristics of Nb-Ti microalloyed steel were studied. Though multi-pass hot rolling simulation, it is found that the recrystallization during hot rolling can play an important role, it can make the mean flow stress lower and refine the grains. And respective comparison between calculated and measured data of microstructure showed some of the validation of the built model. Meanwhile, the evolution characteristic of average austenite grain size during hot rolling can be achieved by theoretical model and experiment.

Metallographic, structural and mechanical characterization of low-density austenitic Fe-Mn-Al-C steels microalloyed with Ti/B and Ce/La in hot-rolling condition

MRS Advances ◽  
2019 ◽  
Vol 4 (57-58) ◽  
pp. 3087-3095
Author(s):  
C.E. Coronado-Alba ◽  
I. Mejía
Keyword(s):  
Grain Size ◽  
Hot Rolling ◽  
Mechanical Characterization ◽  
Research Work ◽  
Distribution Functions ◽  
Second Phase ◽  
Low Density ◽  
Second Stage ◽  
Rolling Condition

ABSTRACTLow-density austenitic Fe-Mn-Al-C steels have high strength, high ductility and a significant weight reduction respect to other alloyed steels. However, this complex system exhibits second-phase precipitation, particularly κ-carbide. It is well-known that the microalloying elements addition to steel generates precipitation hardening, as well as grain refinement effect. It is worth noting that low-density steels can cause cracking during hot-rolling due to high Mn, Al and C contents and segregation in grain boundaries. Hot-rolling conditions play an important role in the dynamic recrystallization mechanisms, and therefore in the austenitic grain size. The main objective of this research work is the metallographic, structural and mechanical characterization of low-density steels microalloyed with Ti/B and Ce/La in hot-rolling condition. For this purpose Fe-(27-30)Mn-(7-8)Al-(1.2-1.8)C (wt.%) low density steels microalloyed with Ti/B and Ce/La were hot-rolled at 1200 °C in two stages. Metallographic, structural and mechanical characterization was carried out by optical (LOM) and scanning electron (SEM) microscopies, electron backscatter diffraction (EBSD) through quality images, inverse pole figures (IPF) and orientation distribution functions (ODF) maps, X-ray diffraction (XRD) and microhardness Vickers (HV) testing. In general, the first stage of hot-rolling exhibits a strongly bimodal microstructure of dynamically recrystallized austenitic grains, while the second stage shows more uniform recrystallized grain size. In the first stage of hot-rolling the austenite is the predominant phase, while in the second stage the α-ferrite phase is barely visible. Low-density steel microalloyed with Ti/B presented better grain size and microhardness values compared to steel microalloyed with Ce/La. Preferred crystallographic orientations were not found.

Microstructural characterization of Zr1Nb alloy after hot rolling

2019 ◽  
Vol 80 ◽  
pp. 216-224
Author(s):  
Armando C. Souza ◽  
Flavio Aristone ◽  
Jesualdo L. Rossi ◽  
Luis G. Martinez ◽  
Franciso C. Cione ◽  
...  
Keyword(s):  
Hot Rolling ◽  
Microstructural Characterization
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