Annealing coordinates the deformation of shear band to improve the microstructure difference and simultaneously promote the strength-plasticity of composite plate

Huo, Peng Da; Li, Feng; Wang, Ye; Wu, Rui; Gao, Rong He; Zhang, An  Xin

doi:10.1016/j.matdes.2022.110696

Cited by 50 publications

(14 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, the simulation results of the maximum width of the molten pool and the maximum width of the heat-affected zone on the steel side are equivalent to the actual size. Therefore, the simulation model is reasonable for calculating and analyzing the temperature field of steel and magnesium laser welding [ 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 ].…”

Section: Resultsmentioning

confidence: 99%

Effect of Laser Welding Parameters on Joint Structure of AZ31B Magnesium Alloy and 304 Stainless Steel

Wan

Zhang

et al. 2022

Materials

View full text Add to dashboard Cite

The effects of laser welding parameters on the interface microstructure of AZ31B magnesium alloy and 304 stainless steel were investigated. After welding, a scanning electron microscope and ultra-depth of field microscope were used to observe the microstructure of the welded material, to analyze the effects of power on the interface morphology. The simulation of laser welding of magnesium and steel was carried out by the COMSOL software. The results showed that when the power was 15 W–20 W, the temperature did not reach the melting point of magnesium alloy, there was MgO at the welding, and the interface had poor connection strength. When the power was 35 W–50 W, the temperature reached or even exceeded the boiling point of magnesium alloy, and the interface formed hot cracks, pores, and oxides and had poor joint strength. When the power was 25 W–30 W, the temperature was between the melting point and boiling point of magnesium, and the interface had excellent connection strength.

show abstract

Section: Resultsmentioning

confidence: 99%

Effect of Laser Welding Parameters on Joint Structure of AZ31B Magnesium Alloy and 304 Stainless Steel

Wan

Zhang

et al. 2022

Materials

View full text Add to dashboard Cite

show abstract

“…Decreasing the grain size can increase the number of dislocation movement obstacles and further realize fine grain strengthening [45]. The energy storage in the grain of Mg plate under the action of hard plate is large, which promotes the formation of recrystallization and refines the grain [46]. For many sub-grains in deformed grains, the role of the sub-grain boundary is similar to that of the grain boundary.…”

Section: Strengthening Mechanismmentioning

confidence: 99%

Microstructure Characteristics and Corrugation Interface Behavior of Al/Mg/Al Composite Plate Rolled Under Large Strain

HUO

Feng

Niu

et al. 2022

Acta Metall. Sin. (Engl. Lett.)

Self Cite

View full text Add to dashboard Cite

Traditional rolled (TR) aluminum (Al)/magnesium (Mg)/aluminum (Al) composite plates have many bottlenecks such as multiple passes, low interlaminar strength, and weak mechanical properties. In this paper, the hard-plate rolling (HPR) method was used to prepare Al/Mg/Al composite plates under a single pass reduction of 60%. The results show that the ultimate tensile strength (UTS) of the composite plate obtained by hard-plate rolling is 262.3 MPa, and the percentage of total elongation at fracture (A t ) is 12.3%, which is 31.6% and 37.4% higher than that of the traditional rolling, respectively. It is attributed to the unique corrugated interlocking structure of the interface of the composite plate caused by hard-plate rolling. The shear texture produced by the Mg plate weakens the strong-basal texture. At the same time, the strong basal slip and the large amount of energy stored in the deformed grains provide favorable conditions for dynamic recrystallized (DRX) nucleation. The microstructure is deeply refined by DRX, and the strength and plasticity of the composite plate are improved synchronously. It provides scientific guidance for the development of high-performance lightweight composite plates and the research on hard-plate rolling technology and also has good industrial production and application potential.

show abstract

“…As an ideal traditional lightweight metal, the magnesium alloy is limited by its poor plasticity. [1,2] Different from traditional magnesium alloys, dual-phase Mg-Li alloys possess a composed crystallographic structure of α-Mg phase (hexagonalclose-packed, hcp) and β-Li phase (body-center-cubic, bcc), which leads to preferable plasticity. [3] However, its shortcoming of insufficient absolute strength still limits its industrial applications, and how to increase the strength is an urgent issue at present.…”

Section: Introductionmentioning

confidence: 99%

Effects of Rolling Reductions on Microstructure Evolution and Mechanical Properties of Mg–8Li–1Al–0.6Y–0.6Ce Alloy

Zhong

Zhang

et al. 2023

Adv Eng Mater

View full text Add to dashboard Cite

The effects of rolling reductions on microstructure evolution and mechanical properties of as‐rolled Mg–8Li–1Al–0.6Y–0.6Ce alloys are studied. When the thickness reduction increases from 30% to 90%, α‐Mg phase is elongated along the rolling direction, and the aspect ratio of fiber structure increases. At the same time, the volume fraction of β‐Li phase increases, because part of α‐Mg phase transforms into β‐Li phase. When the rolling reduction is 70%, the alloy shows the best comprehensive performance with the ultimate tensile strength (UTS) of 238 MPa and the elongation of 24%, mainly caused by fine‐grain strengthening and strain hardening. During the rolling process, β‐Li phase is deformed preferentially and subsequently drives the deformation of α‐Mg phase. Then some twins are generated, which promote the dislocation slip, thereby promoting the deformation coordination.

show abstract

Annealing coordinates the deformation of shear band to improve the microstructure difference and simultaneously promote the strength-plasticity of composite plate

Cited by 50 publications

References 26 publications

Effect of Laser Welding Parameters on Joint Structure of AZ31B Magnesium Alloy and 304 Stainless Steel

Effect of Laser Welding Parameters on Joint Structure of AZ31B Magnesium Alloy and 304 Stainless Steel

Microstructure Characteristics and Corrugation Interface Behavior of Al/Mg/Al Composite Plate Rolled Under Large Strain

Effects of Rolling Reductions on Microstructure Evolution and Mechanical Properties of Mg–8Li–1Al–0.6Y–0.6Ce Alloy

Contact Info

Product

Resources

About