Influence of the microstructure on the machinability of heat-treated Al–10.8% Si cast alloys: Role of copper-rich intermetallics

2013 ◽  
Vol 213 (2) ◽  
pp. 167-179 ◽  
Author(s):  
Y. Zedan ◽  
S. Alkahtani
Keyword(s):  
Heat Treated ◽  
Cast Alloys

scholarly journals On the Elevated Temperature, Tensile Properties of Al-Cu Cast Alloys: Role of Heat Treatment

2019 ◽  
Vol 2019 ◽  
pp. 1-15
Author(s):  
A. Girgis ◽  
A. M. Samuel ◽  
H. W. Doty ◽  
S. Valtierra ◽  
F. H. Samuel
Keyword(s):  
Heat Treatment ◽  
High Temperature ◽  
Tensile Properties ◽  
Treatment Conditions ◽  
Heat Treated ◽  
Cast Alloys ◽  
High Temperature Tensile ◽  
High Temperature Tensile Properties ◽  
Optimum Alloy

The present study aims to investigate the mechanical properties of a newly developed aluminum Al-6.5% Cu-based alloy, coded HT200, as well as to determine how these properties can be further improved using grain refinement and heat treatment. As a result, the effects of different heat treatments and alloying additions on the ambient and high-temperature tensile properties were examined. Three alloys were selected for this study: (i) the base HT200 alloy (coded A), (ii) the base HT200 alloy containing 0.15% Ti + 0.15% Zr (coded B), and (iii) the base HT200 alloy containing 0.15% Ti + 0.15% Zr + 0.5%Ag (coded C). The properties of the three HT200 alloys were compared with those of 319 and 356 alloys (coded D and E, respectively), subjected to the same heat treatment conditions. The results obtained show the optimum high-temperature tensile properties and Q-values for the five alloys of interest, along with the corresponding heat treatment conditions associated with these properties. It was found that the T6 heat-treated alloy B was the optimum alloy in terms of properties obtained, with values comparable to those of commercial B319.0 and A356.0 alloys.

Carbide precipitation and chromium depletion on coherent twin boundaries in deformed 304 stainless steels

1992 ◽  
Vol 50 (2) ◽  
pp. 1216-1217
Author(s):  
A.H. Advani ◽  
L.E. Murr ◽  
D.J. Matlock ◽  
W.W. Fisher ◽  
P.M. Tarin ◽  
...  
Keyword(s):  
Grain Boundaries ◽  
Stainless Steels ◽  
Interfacial Free Energy ◽  
Carbide Precipitation ◽  
Twin Boundaries ◽  
Invariant Structure ◽  
Heat Treated ◽  
Constant Structure ◽  
Cr Depletion

Coherent annealing-twin boundaries are constant structure and energy interfaces with an average interfacial free energy of ∼19mJ/m2 versus ∼210 and ∼835mJ/m2 for incoherent twins and “regular” grain boundaries respectively in 304 stainless steels (SS). Due to their low energy, coherent twins form carbides about a factor of 100 slower than grain boundaries, and limited work has also shown differences in Cr-depletion (sensitization) between twin versus grain boundaries. Plastic deformation, may, however, alter the kinetics and thermodynamics of twin-sensitization which is not well understood. The objective of this work was to understand the mechanisms of carbide precipitation and Cr-depletion on coherent twin boundaries in deformed SS. The research is directed toward using this invariant structure and energy interface to understand and model the role of interfacial characteristics on deformation-induced sensitization in SS. Carbides and Cr-depletion were examined on a 20%-strain, 0.051%C-304SS, heat treated to 625°C-4.5h, as described elsewhere.

Hardening of Al–Si–Cu–Mg Cast Alloys: Role of Ag and Zn addition

2021 ◽  
Author(s):  
A. M. Samuel ◽  
F. H. Samuel ◽  
M. H. Abdelaziz ◽  
H. W. Doty
Keyword(s):  
Zn Addition ◽  
Cast Alloys

The role of texturing and microstructure evolution on the tensile behavior of heat-treated Inconel 625 produced via laser powder bed fusion

2020 ◽  
Vol 769 ◽  
pp. 138500 ◽  
Author(s):  
Giulio Marchese ◽  
Simone Parizia ◽  
Masoud Rashidi ◽  
Abdollah Saboori ◽  
Diego Manfredi ◽  
...  
Keyword(s):  
Microstructure Evolution ◽  
Tensile Behavior ◽  
Inconel 625 ◽  
Powder Bed Fusion ◽  
Laser Powder Bed Fusion ◽  
Powder Bed ◽  
Heat Treated

Role of glucosinolates in the causation of liver haemorrhages in laying hens fed water-extracted or heat-treated rapeseed cakes

1987 ◽  
Vol 43 (3) ◽  
pp. 313-319 ◽  
Author(s):  
P.A.L. WIGHT ◽  
R.K. SCOUGALL ◽  
D.W.F. SHANNON ◽  
J.W. WELLS ◽  
R. MAWSON
Keyword(s):  
Laying Hens ◽  
Heat Treated

Effect of Mo Addition on Room and High Temperature Tensile Behavior of Al-Si-Cu-Mg Alloy in As-Cast and Heat-Treated Conditions

2019 ◽  
Vol 1155 ◽  
pp. 71-79
Author(s):  
Mohammadreza Zamani ◽  
Stefania Toschi ◽  
Alessandro Morri ◽  
Lorella Ceschini ◽  
Salem Seifeddine
Keyword(s):  
High Temperature ◽  
Tensile Behavior ◽  
Mg Alloy ◽  
High Melting Point ◽  
Treated Condition ◽  
Heat Treated ◽  
Heat Treated Condition ◽  
High Temperature Tensile ◽  
Negligible Influence

This study focuses on the role of Mo addition on the mechanical properties of an Al-Si-Cu-Mg alloy in as-cast and heat-treated condition at ambient and elevated temperature. Addition of 0.4 to 0.6 wt.% Mo forms Mo-bearing dispersoid particles which have a relatively high melting point and improve high temperature tensile strength. Ductility suffered in the presence of Mo-bearing particles. Trace addition of Mo up to 0.6 wt.% has a negligible influence on the yield strength and hardness of Al-Si-Cu-Mg alloy in as-cast and heat-treated conditions at ambient temperature and 250 °C.

Role of AMPK in the expression of tight junction proteins in heat-treated porcine Sertoli cells

2018 ◽  
Vol 121 ◽  
pp. 42-52 ◽  
Author(s):  
Wei-Rong Yang ◽  
Ting-Ting Liao ◽  
Zi-Qiang Bao ◽  
Cai-Quan Zhou ◽  
Hong-Yan Luo ◽  
...  
Keyword(s):  
Tight Junction ◽  
Sertoli Cells ◽  
Tight Junction Proteins ◽  
Heat Treated ◽  
Junction Proteins

Role of the chemical homogenization on the microstructural and mechanical evolution of prolonged heat-treated laser powder bed fused Inconel 625

2020 ◽  
Vol 796 ◽  
pp. 140007 ◽  
Author(s):  
Giulio Marchese ◽  
Emilio Bassini ◽  
Simone Parizia ◽  
Diego Manfredi ◽  
Daniele Ugues ◽  
...  
Keyword(s):  
Inconel 625 ◽  
Powder Bed ◽  
Mechanical Evolution ◽  
Heat Treated ◽  
Prolonged Heat

Role of microstructure and secondary phase on corrosion behavior of heat treated AZ series magnesium alloys

2019 ◽  
Vol 18 ◽  
pp. 175-181 ◽  
Author(s):  
P. Pradeep Kumar ◽  
A. Raj Bharat ◽  
B. Sesha Sai ◽  
R.J. Phani Sarath ◽  
P. Akhil ◽  
...  
Keyword(s):  
Magnesium Alloys ◽  
Corrosion Behavior ◽  
Secondary Phase ◽  
Heat Treated
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