Grain refinement in as-cast AZ80 Mg alloy under large strain deformation

Microstructural evolution and tensile mechanical properties of AM60B magnesium alloy prepared by the SIMA route

“…However, the grain size tended to reach a constant value with further increasing the equivalent strain once a critical minimum grain size was achieved. The similar case had been reported by Guo et al [21]. Tensile mechanical properties of CCDF formed AM60B magnesium alloy including UTS, YS and elongation to fracture were tested at room temperature.…”

“…The results indicate that there was a critical strain ε c , which was in the range of 1.6-2.4 and controlled the degree of the homogeneity for the present alloy during its microstructure evolution process. When the applied total strain ε t exceeded the critical strain ε c , the microstructure of fine and homogeneous recrystallised grains could be obtained [21,22]. However, the grain size tended to reach a constant value with further increasing the equivalent strain once a critical minimum grain size was achieved.…”

A review: Hot topics on magnesium technology in China

“…Further deformation led to increase in the number and misorientation of these boundaries and finally almost full development of fine equiaxed grains in high strain. New grains were concluded to be evolved by a kind of continuous reaction, which is essentially similar to continuous dynamic recrystallization [21].…”

The Relationship of Microstructure and Texture to Rolling Direction in Cold-Rolled Metastable Austenitic Steel

“…[9][10][11][12][13][14] The recrystallized grain size resulting from multiple forging was analogous to the minimum width of fragmented microbands, which were developed in various directions and then intersected to subdivide the grains. [9][10][11] The grain size of 304 stainless steel was reduced to 0.3 lm by multiple forging, and the fraction of high-angle boundaries was lower than that of a unidirectionally forged specimen. [12][13][14] In the present study, we used cross-rolling techniques to facilitate refinement of lath size of a¢ martensite in the SIMRT process.…”