Plastic flow behavior, microstructure, and corrosion behavior of AZ61 Mg alloy during hot compression deformation

Tsao, L. C.; Chen, C.H.; Wu, Rong-Tsun; Chang, Shih‐Ying; Chen, R.S.

doi:10.1016/j.jmapro.2015.01.008

Cited by 13 publications

(3 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In equation (10), the instability coefficient is represented by ξ(ε ). The material instability plot is a contour plot of the instability coefficient obtained at various deformation temperatures and strain rates.…”

Section: Interpretation From Processing Mapsmentioning

confidence: 99%

“…The unique hexagonal crystal structure of magnesium alloys and their limited slip system at ambient temperatures restrict their processing. However, thermal processing can be used to improve the microstructure and formability of magnesium alloys by activating additional slip systems [9][10][11][12][13][14] . When magnesium alloys are deformed at high temperatures, the slip system of the base, prismatic, and conical surfaces is activated, leading to an increase in their plastic deformation capacity.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Study on Hot Deformation Behavior and Microstructure Evolution of MgAlCuZnMnCe Alloy

Chunyu,

Nan,

Tongyu

et al. 2023

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

The Mg79Al12.5Cu2.5Zn4MnCe multi-principal element alloys was prepared by induction melting under a high-purity argon. The true stress-strain curves at deformation temperatures of 250-350°C and strain rates of 0.001-1s−1 were used to establish the constitutive equations as well as the thermal processing map. The optimal hot processing parameters for the alloy were determined as a deformation temperature of 320-350°C and a strain rate of 0.1-1s−1. Further investigation into the impact of various deformation parameters on the microstructure and macrotexture of the alloy during hot compression was conducted. The findings indicate that at a deformation rate of 1s−1, the second phase of the alloy is broken and deformed. The texture intensity follows a pattern of initially decreasing and then increases as the temperature rises. The change in grain size is influenced by the deformation crushing effect, initiation of the non-substrate slip system, and grain growth. When the strain rate increases, the changes in texture intensity and distribution are not pronounced, indicating that the strain rate has minimal influence on the macro texture.

show abstract

Section: Interpretation From Processing Mapsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Study on Hot Deformation Behavior and Microstructure Evolution of MgAlCuZnMnCe Alloy

Chunyu,

Nan,

Tongyu

et al. 2023

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

show abstract

“…Thus, Mg alloy products are increasingly being made using various plastic deformation methods to lessen these limitations [11], contributing to their having better mechanical properties than casting products. Especially during hot deformation, the dynamic recrystallization of magnesium alloy resulting in grain refinement improves the strength and toughness of materials and eliminates various defects, thus greatly enhancing the comprehensive mechanical properties of the alloy [12][13][14][15]. Constitutive equations and heat processing maps for accurately describing the flow characteristics of materials can be constructed through the Arrhenius model, and the accuracy of processing maps can be judged according to microstructure evolution.…”

Section: Introductionmentioning

confidence: 99%

Characterization of Hot Deformation Behavior and Processing Maps of Mg-3Sn-2Al-1Zn-5Li Magnesium Alloy

Guo

Xuanyuan

Lia

et al. 2019

Metals

View full text Add to dashboard Cite

The dynamic microstructure evolution of Mg-3Sn-2Al-1Zn-5Li magnesium alloy during hot deformation is studied by hot compression tests over the temperature range of 200–350 °C under the strain rate of 0.001–1 s−1, whereafter constitutive equations and processing maps are developed and constructed. In most of cases, the material shows typical dynamic recrystallization (DRX) features, with a signal peak value followed by a gradual decrease. The value of Q (deformation activation energy) is 138.89414 kJ/mol, and the instability domains occur at high strain rate but the stability domains are opposite, and the optimum hot working parameter for the studied alloy is determined to be 350 °C/0.001 s−1 according to the processing maps. Within 200–350 °C, the operating mechanism of dynamic recrystallization (DRX) of Mg-3Sn-2Al-1Zn-5Li alloy during hot deformation is mainly affected by strain rate. Dynamic recrystallization (DRX) structures are observed from the samples at 300 °C/0.001 s−1 and 350 °C/0.001 s−1, which consist of continuous DRX (CDRX) and discontinuous DRX (DDRX). However, dynamic recovery (DRV) still dominates the softening mechanism. At the grain boundaries, mass dislocation pile-ups and dislocation tangle provide sites for potential nucleation. Meanwhile, flow localization bands are observed from the samples at 200 °C/1 s−1 and 250 °C/0.1 s−1 as the main instability mechanism.

show abstract

Mechanical properties and failure behavior of AZ61 magnesium alloy at high temperatures

et al. 2018

View full text Add to dashboard Cite

Plastic flow behavior, microstructure, and corrosion behavior of AZ61 Mg alloy during hot compression deformation

Cited by 13 publications

References 22 publications

Study on Hot Deformation Behavior and Microstructure Evolution of MgAlCuZnMnCe Alloy

Study on Hot Deformation Behavior and Microstructure Evolution of MgAlCuZnMnCe Alloy

Characterization of Hot Deformation Behavior and Processing Maps of Mg-3Sn-2Al-1Zn-5Li Magnesium Alloy

Mechanical properties and failure behavior of AZ61 magnesium alloy at high temperatures

Contact Info

Product

Resources

About