Microstructure and mechanical properties of TiC nanoparticle-reinforced Mg−Zn−Ca matrix nanocomposites processed by combining multidirectional forging and extrusion

2020 ◽  
Vol 30 (9) ◽  
pp. 2394-2412
Author(s):  
Kai-bo NIE ◽  
Zhi-hao ZHU ◽  
Paul MUNROE ◽  
Kun-kun DENG ◽  
Ya-chao GUO
Keyword(s):  
Mechanical Properties ◽  
Multidirectional Forging ◽  
Microstructure And Mechanical Properties ◽  
Matrix Nanocomposites ◽  
Tic Nanoparticle

scholarly journals Microstructure and Mechanical Properties of Mg/2 wt.%SiCp Nanocomposite Fabricated by ARB Process

2016 ◽  
Vol 2016 ◽  
pp. 1-12 ◽  
Author(s):  
Zheng Lv ◽  
Xueping Ren ◽  
Wenjing Wang ◽  
Xiaodan Gao ◽  
Wenjie Li
Keyword(s):  
Mechanical Properties ◽  
Electron Microscope ◽  
Elastic Modulus ◽  
Homogeneous Distribution ◽  
Basal Texture ◽  
Magnesium Matrix ◽  
X Ray ◽  
Microstructure And Mechanical Properties ◽  
Transmission Electron ◽  
Matrix Nanocomposites

Magnesium matrix nanocomposites (MMNC, the same below) containing 2 wt.% nanosized SiCp were fabricated through accumulative roll bonding (ARB). The microstructure and mechanical properties of Mg/2 wt.%SiCp nanocomposites are reported for various ARB cycles. To evaluate microstructure of the nanocomposites, the field emission scanning electron microscope (FE-SEM), X-ray diffractometer (XRD), and transmission electron microscope (TEM) were applied. After fourteen ARB cycles, the nanocomposite showed a homogeneous distribution of reinforcements and a significant reduction in average matrix grain size. Meanwhile, the nanocomposite revealed a higher percentage of recrystallization and lower intensity of basal texture as compared to monolithic Mg. Mechanical properties were investigated through tensile and microhardness tests. The strength and elastic modulus and microhardness of Mg/2 wt.%SiCp were found to be improved significantly from eight ARB cycles and reach maximum values at fourteen ARB cycles. The ultimate tensile strength, yield strength, microhardness, and elastic modulus of Mg/2 wt.%SiCp are considerably increased by 17.6%, 61.0%, 72.7%, and 80.8% as compared to raw Mg, respectively.

Sign in / Sign up

Export Citation Format

Share Document