Microstructure and mechanical properties of Mg–3.0Y–2.5Nd–1.0Gd–xZn–0.5Zr alloys produced by metallic and sand mold casting

2017 ◽  
Vol 32 (16) ◽  
pp. 3191-3201 ◽  
Author(s):  
Haohao Zhang ◽  
Liang Zhang ◽  
Guohua Wu ◽  
Antao Chen ◽  
Wendong Cui ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Sand Mold ◽  
Microstructure And Mechanical Properties ◽  
Mold Casting ◽  
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Abstract

Effects of minor Y addition on microstructure and mechanical properties of Mg–Nd–Zn–Zr alloy

2017 ◽  
Vol 32 (19) ◽  
pp. 3712-3722 ◽  
Author(s):  
Yushi Chen ◽  
Guohua Wu ◽  
Wencai Liu ◽  
Liang Zhang ◽  
Haohao Zhang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Microstructure And Mechanical Properties ◽  
Image Position ◽  
Zr Alloy

Abstract

EFFECT OF THIXOFORMING ON THE MICROSTRUCTURE AND MECHANICAL PROPERTIES OF AL-6%SI-3%CU ALLOY

2017 ◽  
Vol 79 (5-2) ◽  
Author(s):  
Mohd Shukor Salleh ◽  
Mohd Azizul Hikmi Safian ◽  
Mohamad Ridzuan Mohamad Kamal ◽  
Zolkarnain Marjom ◽  
Saifudin Hafiz Yahaya ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Cast Alloy ◽  
Tensile Tests ◽  
Hydraulic Press ◽  
Permanent Mold ◽  
Cast Sample ◽  
X Ray ◽  
Cu Alloy ◽  
Microstructure And Mechanical Properties ◽  
Mold Casting

Thixoforming is a type of semisolid metal (SSM) processing for forming alloys in the semisolid state to near net-shaped products. In the present study, the effect of a thixoforming process on the microstructure and mechanical properties of Al-6Si-3Cu aluminium alloy was investigated. Melt was poured on a cooling slope at 630oC and the samples were obtained through permanent mold casting. They were thixoformed using a hydraulic press after holding at 571oC for 5min to yield a microstructure predominantly composed of α-Al globules and inter-globular Si particles. As-cast and thixoformed samples were characterized using optical microscopy, scanning electron microscopy (SEM), energy dispersive X-ray (EDX) and X-ray diffraction (XRD) as well as hardness measurements and tensile tests. The results indicate that the mechanical properties of thixoformed alloy have improved as compared to permanent mold cast alloy. The ultimate tensile strength of as-cast sample was 210 ± 3.5 MPa and increased to 241 ±3.1 MPa in the thixoformed sample while the yield strength of as-cast alloy was 140 ±4.5 MPa and increased to 176±3.3 MPa in the thixoformed sample. The thixoformed alloy also showed an improvement in elongation to fracture as it increased from 2% in as-cast sample to 3.2% in thixoformed alloy. The fracture of as-cast sample showed a cleavage fracture, whereas in the thixoformed alloy, a combination of dimple and cleavage was observed.

Effect of titanium contents on the microstructure and mechanical properties for 9Cr2WVTa deposited metals

2017 ◽  
Vol 32 (9) ◽  
pp. 1748-1759
Author(s):  
Jian Wang ◽  
Lijian Rong ◽  
Dianzhong Li ◽  
Shanping Lu
Keyword(s):  
Mechanical Properties ◽  
Microstructure And Mechanical Properties ◽  
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Abstract

Nano-sized TiN-reinforced composites: Fabrication, microstructure, and mechanical properties

2019 ◽  
Vol 34 (15) ◽  
pp. 2582-2589
Author(s):  
Chunxin Li ◽  
Xuewei Lv ◽  
Xiaolong Wu ◽  
Jie Chen ◽  
Xuyang Liu ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Reinforced Composites ◽  
Microstructure And Mechanical Properties ◽  
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Abstract

Effects of boron and zirconium additions on the fluidity, microstructure and mechanical properties of IN718C superalloy

2016 ◽  
Vol 31 (22) ◽  
pp. 3557-3566 ◽  
Author(s):  
Ziqi Jie ◽  
Jun Zhang ◽  
Taiwen Huang ◽  
Haijun Su ◽  
Yanbin Zhang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Microstructure And Mechanical Properties ◽  
Image Position

Abstract

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