Latest Articles of Materials Science and Engineering: A


Microstructural evolution and improvement in mechanical properties of extruded AZ31 alloy by combined addition of Ca and Y 10.1016/j.msea.2018.04.031 2018-04-10 This study demonstrates that the combined addition of 0.5 wt% Ca and 0.2 wt% Y to a commercial AZ31 alloy leads to the promotion of dynamic recrystallization (DRX) behavior during hot extrusion, which significantly improves the mechanical properties of the ex...
Effect of layered microstructure on the superplasticity of friction stir processed AZ91 magnesium alloy 10.1016/j.msea.2018.04.028 2018-04-07 Multipass friction stir processing (FSP) was performed in as-cast AZ91 Mg alloy (AC) to generate layered microstructure through the thickness and study its effect on superplasticity. The FSP tools with different tool pin length were used to develop three kind...
Metallic glass hardening after thermoplastic forming 10.1016/j.msea.2018.04.021 2018-04-07 Thermoplastic forming is an important manufacturing technique for the shaping of metallic glass (MG) components. However, property changes of MGs after such forming are unclear. This paper systematically studied the effect of thermoplastic forming on the stru...
Strain rate sensitivity assessment of metallic materials by mechanical indentation tests 10.1016/j.msea.2018.04.023 2018-04-07 Mechanical indentation tests have been long and continuously investigated to be used as an indirect method to evaluate the elasto-plastic behavior of materials. It is well known that mechanical properties of some materials are sensitive to strain rate and yet...
Detection of Intergranular Embrittlement of Reactor Pressure Vessel Steel by Electrochemical Method 10.1016/j.msea.2018.04.008 2018-04-04 The reactor pressure vessel (RPV) steel, with manganese-nickel-molybdenum (Mn-Ni-Mo) alloying, was subjected to accelerated thermal aging treatment at 450 °C for durations upto 8400 h. Impact toughness decreased and the intergranular fracture (IGF) increased ...
The effects of phase transformation on the microstructure and mechanical behavior of FeNiMnCr0.75Alx high-entropy alloys 10.1016/j.msea.2018.04.007 2018-04-04 The effects of phase transformation on the microstructures and mechanical behavior of FeNiMnCr0.75Alx (x = 0.25, 0.5 and 0.75) high-entropy alloys (HEAs) were investigated. The crystal structures of the FeNiMnCr0.75Alx HEAs transitioned from the primary FCC1 ...
The mechanistic contribution of nanosized Al3Fe phase on the mechanical properties of Al-Fe alloy 10.1016/j.msea.2018.04.002 2018-04-03 Al-1Fe (wt. %) alloys containing nanosized Al3Fe phase and micrometer-sized Al3Fe phase were prepared by continuous rheo-extrusion and casting, respectively. The yield strength, tensile strength and elongation of Al-1Fe (wt. %) alloy containing nanosized Al3F...
Microstructural development of Powder Metallurgy Cobalt-based superalloys processed by Field Assisted Sintering Techniques (FAST) 10.1016/j.msea.2018.04.004 2018-04-03 This study reports the microstructural evolution, physical and mechanical properties of cobalt-based superalloys processed from mechanical alloyed powders and consolidated by field-assisted sintering techniques (FAST). After an initial thermodynamic simulatio...
Role of Sc on the Glass Forming Ability and Mechanical Properties of Al-Y-Ni-Sc Bulk Metallic Glass Produced with Different Cooling Rates 10.1016/j.msea.2018.04.003 2018-04-03 In the present study, the role of Sc in the glass forming ability (GFA) and mechanical properties of (Al87Y8Ni5)99Sc1 alloy ribbon produced by single roller melt-spinning with various rotation speeds has been investigated in an attempt to understand the influ...
Microstructure and mechanical properties of selective laser melted biomaterial Ti-13Nb-13Zr compared to hot-forging 10.1016/j.msea.2018.04.001 2018-04-03 The microstructure and mechanical properties of the biomaterial Ti-13Nb-13Zr prepared by selective laser melting (SLM) and hot-forging techniques were studied comparatively. The microstructures were investigated by scanning electron microscopy (SEM), electron...

Microstructural evolution and improvement in mechanical properties of extruded AZ31 alloy by combined addition of Ca and Y

10.1016/j.msea.2018.04.031

2018-04-10

This study demonstrates that the combined addition of 0.5 wt% Ca and 0.2 wt% Y to a commercial AZ31 alloy leads to the promotion of dynamic recrystallization (DRX) behavior during hot extrusion, which significantly improves the mechanical properties of the ex...

Effect of layered microstructure on the superplasticity of friction stir processed AZ91 magnesium alloy

10.1016/j.msea.2018.04.028

2018-04-07

Multipass friction stir processing (FSP) was performed in as-cast AZ91 Mg alloy (AC) to generate layered microstructure through the thickness and study its effect on superplasticity. The FSP tools with different tool pin length were used to develop three kind...

Metallic glass hardening after thermoplastic forming

10.1016/j.msea.2018.04.021

2018-04-07

Thermoplastic forming is an important manufacturing technique for the shaping of metallic glass (MG) components. However, property changes of MGs after such forming are unclear. This paper systematically studied the effect of thermoplastic forming on the stru...

Strain rate sensitivity assessment of metallic materials by mechanical indentation tests

10.1016/j.msea.2018.04.023

2018-04-07

Mechanical indentation tests have been long and continuously investigated to be used as an indirect method to evaluate the elasto-plastic behavior of materials. It is well known that mechanical properties of some materials are sensitive to strain rate and yet...

Detection of Intergranular Embrittlement of Reactor Pressure Vessel Steel by Electrochemical Method

10.1016/j.msea.2018.04.008

2018-04-04

The reactor pressure vessel (RPV) steel, with manganese-nickel-molybdenum (Mn-Ni-Mo) alloying, was subjected to accelerated thermal aging treatment at 450 °C for durations upto 8400 h. Impact toughness decreased and the intergranular fracture (IGF) increased ...

The effects of phase transformation on the microstructure and mechanical behavior of FeNiMnCr0.75Alx high-entropy alloys

10.1016/j.msea.2018.04.007

2018-04-04

The effects of phase transformation on the microstructures and mechanical behavior of FeNiMnCr0.75Alx (x = 0.25, 0.5 and 0.75) high-entropy alloys (HEAs) were investigated. The crystal structures of the FeNiMnCr0.75Alx HEAs transitioned from the primary FCC1 ...

The mechanistic contribution of nanosized Al3Fe phase on the mechanical properties of Al-Fe alloy

10.1016/j.msea.2018.04.002

2018-04-03

Al-1Fe (wt. %) alloys containing nanosized Al3Fe phase and micrometer-sized Al3Fe phase were prepared by continuous rheo-extrusion and casting, respectively. The yield strength, tensile strength and elongation of Al-1Fe (wt. %) alloy containing nanosized Al3F...

Microstructural development of Powder Metallurgy Cobalt-based superalloys processed by Field Assisted Sintering Techniques (FAST)

10.1016/j.msea.2018.04.004

2018-04-03

This study reports the microstructural evolution, physical and mechanical properties of cobalt-based superalloys processed from mechanical alloyed powders and consolidated by field-assisted sintering techniques (FAST). After an initial thermodynamic simulatio...

Role of Sc on the Glass Forming Ability and Mechanical Properties of Al-Y-Ni-Sc Bulk Metallic Glass Produced with Different Cooling Rates

10.1016/j.msea.2018.04.003

2018-04-03

In the present study, the role of Sc in the glass forming ability (GFA) and mechanical properties of (Al87Y8Ni5)99Sc1 alloy ribbon produced by single roller melt-spinning with various rotation speeds has been investigated in an attempt to understand the influ...

Microstructure and mechanical properties of selective laser melted biomaterial Ti-13Nb-13Zr compared to hot-forging

10.1016/j.msea.2018.04.001

2018-04-03

The microstructure and mechanical properties of the biomaterial Ti-13Nb-13Zr prepared by selective laser melting (SLM) and hot-forging techniques were studied comparatively. The microstructures were investigated by scanning electron microscopy (SEM), electron...