Microstructure evolution and enhanced mechanical properties of hot rolled Mg–3Al–Zn alloy with the addition of Al and Si as a eutectic alloy

2017 ◽  
Vol 32 (18) ◽  
pp. 3564-3573
Author(s):  
Liuwei Zheng ◽  
Kaibo Nie ◽  
Huihui Nie ◽  
Wanggang Zhang ◽  
Wei Liang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Microstructure Evolution ◽  
Eutectic Alloy ◽  
Image Position ◽  
Hot Rolled ◽  
Zn Alloy

Abstract

Microstructure Evolution and Mechanical Properties of 67GPa•% Grade Medium Manganese Steel

2021 ◽  
Vol 1035 ◽  
pp. 404-409
Author(s):  
Zhe Rui Zhang ◽  
Ren Bo Song ◽  
Nai Peng Zhou ◽  
Wei Feng Huo
Keyword(s):  
Mechanical Properties ◽  
Microstructure Evolution ◽  
Annealing Temperature ◽  
High Strength ◽  
Total Elongation ◽  
Manganese Steel ◽  
Experimental Steel ◽  
Medium Manganese Steel ◽  
Hot Rolled ◽  
Hot Rolled Steel

In this study, a new Fe-6Mn-4Al-0.4C high strength medium manganese hot rolled steel sheet was designed. The influence mechanism of the intercritical annealing (IA) temperature on microstructure evolution and mechanical properties of experimental steel were studied by SEM and XRD. The experimental steel was held for 30 minutes at 640°C, 680°C, 720°C, 760°C, 800°C, respectively. When the annealing temperature was 640°C, cementite particles precipitated between the austenite and ferrite phase boundary. As the annealing temperature increased, the cementite gradually dissolved and disappeared, the fraction of lamellar austenite increased significantly. When the annealing temperature is 800°C, the coarse equiaxed austenite and ferrite appeared. The yield strength (YS) decreased, the product of strength and elongation (PSE) and total elongation (TE) both increased first and then decreased, while the ultimate tensile strength (UTS) showed the opposite trend. The experimental steel exhibited excellent comprehensive mechanical properties after held at 760°C for 30 min. The UTS was 870 MPa, the YS was 703 MPa, and the TE was 77 %, the PSE was 67 GPa·%.

Microstructure evolution and mechanical properties of Zr–45Ti–5Al–3V alloy processed by electric field-assisted extrusion

2016 ◽  
Vol 31 (22) ◽  
pp. 3580-3587
Author(s):  
Chunxiang Zhang ◽  
Limin Wang ◽  
Riping Liu ◽  
Bojun Zhao ◽  
Junting Luo
Keyword(s):  
Mechanical Properties ◽  
Electric Field ◽  
Microstructure Evolution ◽  
Image Position

Abstract

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