Effects of accumulative rolling reduction on the microstructure characteristic and mechanical properties of Mg-Gd-Y-Zn-Zr sheets processed by hot rolling

2019 ◽  
Vol 765 ◽  
pp. 138317
Author(s):  
Bing Li ◽  
Bugang Teng ◽  
Erde Wang
Keyword(s):  
Mechanical Properties ◽  
Hot Rolling ◽  
Rolling Reduction ◽  
Microstructure Characteristic

Effect of the Rolling Process on Microstructures and Mechanical Properties of the Extruded LA91 Alloy Sheet

2011 ◽  
Vol 686 ◽  
pp. 90-95 ◽  
Author(s):  
Bin Jiang ◽  
Qing Shan Yang ◽  
Liang Gao ◽  
Fu Sheng Pan
Keyword(s):  
Mechanical Properties ◽  
Microstructure Evolution ◽  
Hot Rolling ◽  
Rolling Process ◽  
Alloy Sheet ◽  
Rolling Reduction ◽  
Thermal Compression ◽  
Cross Rolling ◽  
The Cross ◽  
Rolling Route

The microstructure evolution of the extruded Mg-9Li-1Al (LA91) during rolling was investigated taking account of effects of different routes including hot rolling, and cross rolling. The rolling parameters were suggested by thermal compression testing. As a result, the suggested rolling parameters were 250°C and 1.0s-1. Transverse hot rolling would bring a finer microstructure to the as-rolled LA91 sheet. With the enhancement of the rolling reduction during unidirectional hot rolling the α-Mg phase became granular or short rod-like from long strip-like. Transverse + longitudinal hot rolling would improve the microstructure and was a better cross rolling route by which the strength and the elongation of the cross rolled LA91 sheet reached 243MPa and 20% respectively. The over-aging existed in the cross rolled LA91 sheets.

Microstructural evolution and mechanical properties response of the ZT40 alloy with hot rolling

2015 ◽  
Vol 12 (5) ◽  
pp. 431-436 ◽  
Author(s):  
Xu Qiao ◽  
Shunxing Liang ◽  
Lixia Yin ◽  
Dandan Li
Keyword(s):  
Mechanical Properties ◽  
Microstructural Evolution ◽  
Hot Rolling ◽  
Volume Fraction ◽  
Zirconium Alloys ◽  
Preferred Orientation ◽  
Rolling Reduction ◽  
Practical Applications ◽  
Rolled Specimen ◽  
Hot Rolled

The Zr-40Ti-4.5Al-4.2V (ZT40) alloy is one of new developed Zirconium alloys with high mechanical properties and great potential for application. The investigation about effects of plastic deformation on microstructure and mechanical properties can promote practical applications of the new high performance ZrTi based alloys. The microstructural evolution and mechanical properties of the ZT40 alloy suffered hot rolling with thickness reduction from 30% to 60% at 775 °C are investigated in this work. Results show that the phase constitution changes from (α + β) to (β + fcc) while the original specimen underwent hot rolling and subsequent water quenching. The β phase in hot rolled specimen adopts preferred orientation form (200) and (211) planes to only (200) plane while the rolling reduction increases from 30% to 60%. Furthermore, no obvious preferred orientation can be detected in specimen with reductions of 60%. Micrographs analysis shows that the dynamic recrystallization occurs in hot rolled specimens. Volume fraction of the DRX grains is approximately 8% in 30% reduction specimen and increases with the increasing of rolling reduction. Nearly full recrystallization is observed in the specimen with reductions of 60%. Hardness test shows that the HV of hot rolled specimen decreases from 384 HV to 329 HV as the increasing of reduction from 30% to 60%. The mechanisms of microstructural evolution and variation of hardness are also discussed. The finding should contribute to understand microstructural evolution, to adjust mechanical properties and to promote practical applications of Zirconium alloys.

Microstructure and Mechanical Properties of Mg 97Y 2ZN 1 Alloy Sheets Processed by Hot Rolling

2021 ◽  
Author(s):  
Yuxiang Han ◽  
Zhiyong Chen ◽  
Sihang He ◽  
Tao Chen ◽  
Jianbo Shao ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Hot Rolling ◽  
Microstructure And Mechanical Properties

Inhibition of martensitic formation and mechanical properties of the TZ20 alloy during hot rolling

2015 ◽  
Vol 649 ◽  
pp. 726-730 ◽  
Author(s):  
L.X. Yin ◽  
S.X. Liang ◽  
L.Y. Zheng ◽  
M.Z. Ma ◽  
R.P. Liu
Keyword(s):  
Mechanical Properties ◽  
Hot Rolling
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