Unsteady-State Horizontal Solidification of an Al–Si–Cu–Fe Alloy: Relationship Between Thermal Parameters and Microstructure with Mechanical Properties/Fracture Feature

2018 ◽  
Vol 25 (1) ◽  
pp. 18-33 ◽  
Author(s):  
Fabricio A. Souza ◽  
Igor A. Magno ◽  
Marlo O. Costa ◽  
André S. Barros ◽  
Jacson M. Nascimento ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Thermal Parameters ◽  
Unsteady State ◽  
Fracture Feature

scholarly journals Correlation between microstructure, thermal parameters and mechanical properties of a directionally solidified Al-1%wt Mn alloy

2018 ◽  
Author(s):  
Danilo Luvizotto Gonçalves ◽  
Noe Cheung ◽  
Ricardo Orcelio Miranda de Oliveira Junior
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Vickers Microhardness ◽  
Rolling Process ◽  
Thermal Parameters ◽  
Unsteady State ◽  
Directionally Solidified ◽  
Strength Tests ◽  
Cast Microstructure

This works aims to study the mechanical properties of a Al-1%wt Mn alloy directionally solidified under unsteady-state conditions. The as-cast microstructure was analysed by measuring the cellular spacing, and the mechanical properties were obtained through Vickers microhardness and tensile strength tests. The correlation between the mechanical results and the as-cast microstructure was fundamental to imply a relation between the solidification thermal parameters and the rolling process in which this kind of alloy is submitted to afterwards.

scholarly journals MACHINABILITY ANALYSIS OF AN AL-1,2% Pb ALLOY SOLIDIFIED IN A HORIZONTAL DIRECTIONAL DEVICE

2019 ◽  
Vol 16 (31) ◽  
pp. 860-874
Author(s):  
Jacson Malcher NASCIMENTO ◽  
Regiane Socorro BARROS ◽  
Camila Yuri KONNO ◽  
Adrina Paixão SILVA ◽  
Otávio ROCHA ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Tool Wear ◽  
Tribological Behavior ◽  
Structural Parameters ◽  
Cutting Temperature ◽  
Industrial Processes ◽  
Unsteady State ◽  
Flow Conditions ◽  
Monotectic Alloy ◽  
Machinability Analysis

In general, the binary monotectic alloys are characterized by the limited solubility in the liquid state, which gives them a benefited tribological behavior such as wear resistance. Researches regarding the development of monotectic alloy microstructures during the unsteady-state heat flow conditions are fundamental, as it encompasses most of the solidification industrial processes. However, the microstructural relationship between the mechanical properties of monotectic alloys is little explored and practically nil. In this context, the present study consists of investigating and correlating solidification thermal variables and structural parameters such as microhardness and machinability (cutting temperatures and tool wear) of Al-1.2wt% Pb alloy, in a horizontal directional device. It was observed that the cutting temperature and tool wear results complement each other when correlated with position and interphase spacing, indicating that for smaller interphase spacings the addition of lead harms machinability.

Effect of Ce and Homogeneous Annealing on Microstructure and Deformation Performance of ZM21 Alloy

2015 ◽  
Vol 816 ◽  
pp. 476-480
Author(s):  
Quan Li ◽  
Wei Bo Zhu ◽  
Si Ya Wang ◽  
Xian Quan Jiang ◽  
Fu Sheng Pan
Keyword(s):  
Mechanical Properties ◽  
Magnesium Alloy ◽  
Magnesium Alloys ◽  
Annealing Treatment ◽  
Solidification Temperature ◽  
Fracture Feature ◽  
Homogenizing Annealing ◽  
Microstructure And Mechanical Properties ◽  
Mixed Fracture ◽  
Deformation Tests

The rare earth element Ce was added in Mg-2.0Zn-1.0Mn magnesium alloys. And the homogenizing treatment and the extrusion deformation tests for the alloy were carried out. The effects of the Ce addition and homogenization on the microstructure and mechanical properties of Mg-2.0Zn-1.0Mn magnesium alloys were studied in the present investigation. The results showed that the addition of Ce can effectively refine the grain size of ZM21 alloy, improve the mechanical properties of magnesium alloy ZM21 and reduce the latent heat and solidification temperature range of the alloy. Homogenizing annealing treatment slightly affected the microstructure and mechanical properties of ZM21 alloy extrusion products but significantly affected the ZM21+Ce magnesium alloy. The fracture analysis indicated that the fracture of the two alloys was mixed fracture, while the fracture of magnesium alloy ZM21+Ce showed more ductile fracture feature.

Effects of Solidification Thermal Parameters on Microstructure and Mechanical Properties of Sn-Bi Solder Alloys

2017 ◽  
Vol 46 (3) ◽  
pp. 1754-1769 ◽  
Author(s):  
Bismarck Luiz Silva ◽  
Vítor Covre Evangelista da Silva ◽  
Amauri Garcia ◽  
José Eduardo Spinelli
Keyword(s):  
Mechanical Properties ◽  
Thermal Parameters ◽  
Solder Alloys ◽  
Microstructure And Mechanical Properties

Cooling thermal parameters, microstructural spacing and mechanical properties in a directionally solidified hypereutectic Al–Si alloy

2016 ◽  
Vol 96 (6) ◽  
pp. 228-237 ◽  
Author(s):  
Rodrigo V. Reyes ◽  
Rafael Kakitani ◽  
Thiago A. Costa ◽  
José E. Spinelli ◽  
Noé Cheung ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Thermal Parameters ◽  
Directionally Solidified

Effects of TiO2 content and thermal parameters on crystallization kinetics and mechanical properties of phosphate based glass system

2020 ◽  
Vol 690 ◽  
pp. 178699
Author(s):  
Pratthana Intawin ◽  
Surapong Panyata ◽  
Arnon Kraipok ◽  
Tawee Tunkasiri ◽  
Sukum Eitssayeam ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Crystallization Kinetics ◽  
Thermal Parameters ◽  
Glass System ◽  
Tio2 Content

scholarly journals Diffusion Bonding of FGH 98 and CoCrNi-Based Medium-Entropy Alloy: Microstructure Evolution and Mechanical Tests

Crystals ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 1158
Author(s):  
Yajie Du ◽  
Zhaoxi Li ◽  
Jiangtao Xiong ◽  
Yipeng Chen ◽  
Shiwei Li ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Diffusion Bonding ◽  
Bonding Temperature ◽  
Mechanical Tests ◽  
Strengthening Effect ◽  
Fracture Feature ◽  
The Matrix ◽  
Alloy Microstructure ◽  
Coherent Relationship ◽  
Maximum Shear Strength

The superalloy FGH98 was successfully diffusion bonded (DB) with medium-entropy alloy (MEA) Al3Ti3(CrCoNi)94 using pure Ni as the interlayer at a temperature range of 1050–1170 °C for 1 h under 5 MPa. The microstructure and mechanical properties of joints were investigated. The diffusion bonding seam was composed of an interlayer zone (IZ) and two diffusion-affected zones (DAZ). The IZ and DAZ beside the FGH98 consisted of cubic Ni3(TiAl)-type γ′ phases due to the diffusion of Ti and Al atoms. Meanwhile, the DAZ adjacent to the MEA consisted of spherical γ′ phases. Both of the γ′ phases with different morphology kept the coherent relationship with the matrix. Moreover, increase of bonding temperature led to the morphology of interlayer γ′ phase to transform from sphere to cube. Due to the strengthening effect of a mass of γ′ phase distributed evenly in IZ and the DAZ beside the FGH98, the microhardness and Young’s modulus of these two zones were higher than that of DAZ near the MEA. The maximum shear strength of DB joint, 592 MPa, was achieved in the joint bonded by 1150 °C, which was the typical ductile fracture feature confirmed by the shear dimples.

Mechanical properties as a function of thermal parameters and microstructure of Zn–Al castings

2003 ◽  
Vol 143-144 ◽  
pp. 703-709 ◽  
Author(s):  
W.R. Osório ◽  
C.A. Santos ◽  
J.M.V. Quaresma ◽  
A. Garcia
Keyword(s):  
Mechanical Properties ◽  
Thermal Parameters
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