The superior ductility of fine SiCp/Al2014 composites after extrusion

2017 ◽  
Vol 24 (2) ◽  
pp. 245-251 ◽  
Author(s):  
Long-Jiang Zhang ◽  
Feng Qiu ◽  
Jin-Guo Wang ◽  
Qi-Chuan Jiang
Keyword(s):  
Tensile Strength ◽  
Ultimate Tensile Strength ◽  
Yield Strength ◽  
Tensile Properties ◽  
Bonding Strength ◽  
Fracture Strain ◽  
Stir Casting ◽  
Interfacial Bonding ◽  
Sic Particles ◽  
Interfacial Bonding Strength

AbstractThis paper studied the effect of extrusion on the microstructures and tensile properties of 4 vol.% 5 μm SiCp/Al2014 composites fabricated by stir casting. It has been found that extrusion could refine the α-Al grains, increase the distributed homogeneity of SiC particles, decrease the porosity of the composites, and improve the interfacial bonding strength. The tensile properties, especially the ductility, of the fine SiCp/Al2014 composites were significantly improved by extrusion. Compared with the as-cast 4 vol.% 5 μm SiCp/Al2014 composites, the yield strength, ultimate tensile strength, and fracture strain of the extruded composites increased from 242 MPa, 367 MPa, and 3.8% to 304 MPa, 530 MPa, and 11.2%, which were increased by 25.6%, 44.4%, and 195%, respectively.

UGI 4362

Alloy Digest ◽  
2018 ◽  
Vol 67 (6) ◽  
Keyword(s):  
Tensile Strength ◽  
Stainless Steel ◽  
Corrosion Resistance ◽  
Ultimate Tensile Strength ◽  
Yield Strength ◽  
Physical Properties ◽  
Duplex Stainless Steel ◽  
Tensile Properties ◽  
Heat Treating ◽  
Good Strength

Abstract UGI 4362 is an austenitic ferritic duplex stainless steel with good strength and corrosion resistance. It has superior yield strength, ultimate tensile strength, and corrosion resistance compared with 316L stainless. This datasheet provides information on composition, physical properties, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming and heat treating. Filing Code: SS-1289. Producer or source: Schmolz + Bickenbach USA Inc..

Effect on the Mechanical Properties of Aluminum-Based Hybrid Metal Matrix Composite Using Stir Casting Method

2019 ◽  
Vol 969 ◽  
pp. 253-259 ◽  
Author(s):  
Ravi Butola ◽  
Chandra Pratap ◽  
Anurag Shukla ◽  
Ravinder S. Walia
Keyword(s):  
Tensile Strength ◽  
Ultimate Tensile Strength ◽  
Yield Strength ◽  
Automobile Industry ◽  
Metal Matrix ◽  
Weight Ratio ◽  
Melting Furnace ◽  
Stir Casting ◽  
Free Atmosphere ◽  
Percentage Elongation

Al based-Hybrid Metal Matrix Composites (HMMC) are becoming widely popular in the Automobile industry due to its highly attractive characteristics of enhanced hardness. The heterogeneous mixture formed due to the presence of reinforcement particles adds to the strength, wear resistance, hardness etc. to the specimen. In this research, fine ashes of bagasse (sugarcane), banana, and jute (coconut covering) were used, produced by burning the above in free atmosphere. The sample was sieve tested to 200 mesh size and ball milled in the presence of SiC with weight ratio of 1:2. Stir casting of the composite was performed in the melting furnace to produce different specimens of Al6061 consisting of different types of reinforcement. The specimens were then exposed to various tests to determine Ultimate tensile strength, yield strength, hardness, and percentage elongation. The best results termed out with the specimen reinforced with banana ash at the cost of loss in ductility exhibiting Ultimate tensile strength 115.4 MPa, Yield Strength 76.4 MPa, Vickers hardness 55-77 HV and Percentage elongation 21%.

Nano-SiCp/Al2014 composites with high strength and good ductility

2017 ◽  
Vol 24 (3) ◽  
pp. 353-359
Author(s):  
Long-Jiang Zhang ◽  
Feng Qiu ◽  
Jin-Guo Wang ◽  
Qi-Chuan Jiang
Keyword(s):  
Tensile Strength ◽  
Ultimate Tensile Strength ◽  
Dislocation Density ◽  
Fracture Strain ◽  
Hot Extrusion ◽  
High Strength ◽  
Matrix Composites ◽  
Interface Bonding ◽  
Sic Particles ◽  
Semi Solid

AbstractIn this study, Al2014 matrix composites reinforced with nano-SiC particles were successfully fabricated by semi-solid stirring combined with hot extrusion. The obtained composites exhibited refined α-Al grains, reasonable nano-SiC particles distribution, good interface bonding, and high dislocation density. The addition of 0.5 vol.% nano-sized SiC particles significantly improved the tensile strengths of the Al2014 alloy without sacrificing the ductility. Compared with the Al2014 alloy, the yield strength, ultimate tensile strength, and fracture strain of 0.5 vol.% nano-SiCp/Al2014 composites increased from 242 MPa, 460 MPa, and 17.1% to 306 MPa, 532 MPa, and 17.7%, respectively.

Mechanical Properties of Mg-8Zn-4Al-xCa Extruded Magnesium Alloy Tube at Elevated Temperature

2007 ◽  
Vol 546-549 ◽  
pp. 305-310
Author(s):  
Bao Yi Yu ◽  
Yu Ying Li ◽  
Hong Wu Song ◽  
Xiao Guang Yuan ◽  
Zhen Liu
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Elevated Temperature ◽  
Magnesium Alloy ◽  
Ultimate Tensile Strength ◽  
Yield Strength ◽  
Tensile Properties ◽  
Room Temperature ◽  
Alloy Tube ◽  
Tensile Performance

Microstructures and tensile properties of Mg-8Zn-4Al-xCax=0.6wt.%, 1.0wt.%, 1.3wt.%, named as alloy 1#, 2# and 3# , respectively)extruded magnesium alloy tube were studied at room and elevated temperature. The results show that Ca can increase tensile strength of the alloy at 150 and 200°C significantly. At the temperature of 200°C, alloy 3# achieved optimal tensile properties, of which the ultimate tensile strength, the yield strength and the elongation were 165.8MPa, 108.7Mpa and 41.5% respectively. Compared with the properties of as cast ZAC8506 Magnesium alloy, it is shown that the tensile properties of alloy 3# are much higher than that of ZAC8506 at both room temperature and 150°C. Alloy 3# also gets better tensile performance than AZ91D extruded tube produced in the same way at the temperature of 200°C Mg2Al3 and Ca2Mg5Zn13 phases are found in the microstructure which should contribute to the higher performance of alloy 3# at elevated temperature

scholarly journals Tensile Behavior of High-Density Polyethylene Including the Effects of Processing Technique, Thickness, Temperature, and Strain Rate

Polymers ◽  
2020 ◽  
Vol 12 (9) ◽  
pp. 1857 ◽  
Author(s):  
Mohammad Amjadi ◽  
Ali Fatemi
Keyword(s):  
Tensile Strength ◽  
Elastic Modulus ◽  
Ultimate Tensile Strength ◽  
Yield Strength ◽  
Strain Rate ◽  
Tensile Properties ◽  
High Density Polyethylene ◽  
Processing Technique ◽  
Tensile Behavior ◽  
High Density

The primary goal of this study was to investigate the monotonic tensile behavior of high-density polyethylene (HDPE) in its virgin, regrind, and laminated forms. HDPE is the most commonly used polymer in many industries. A variety of tensile tests were performed using plate-type specimens made of rectangular plaques. Several factors can affect the tensile behavior such as thickness, processing technique, temperature, and strain rate. Testing temperatures were chosen at −40, 23 (room temperature, RT), 53, and 82 °C to investigate temperature effect. Tensile properties, including elastic modulus, yield strength, and ultimate tensile strength, were obtained for all conditions. Tensile properties significantly reduced by increasing temperature while elastic modulus and ultimate tensile strength linearly increased at higher strain rates. A significant effect of thickness on tensile properties was observed for injection molding specimens at 23 °C, but no thickness effect was observed for compression molded specimens at either 23 or 82 °C. The aforementioned effects and discussion of their influence on tensile properties are presented in this paper. Polynomial relations for tensile properties, including elastic modulus, yield strength, and ultimate tensile strength, were developed as functions of temperature and strain rate. Such relations can be used to estimate tensile properties of HDPE as a function of temperature and/or strain rate for application in designing parts with this material.

scholarly journals Effect of equal channel angular pressing route and temperature on the mechanical behavior of ZE41 Mg alloy

2021 ◽  
Author(s):  
B.P. Chiranth ◽  
C. Siddaraju ◽  
P. Sevvel ◽  
M. Gupta ◽  
R.K. Mishra ◽  
...  
Keyword(s):  
Tensile Strength ◽  
Ultimate Tensile Strength ◽  
Yield Strength ◽  
Dynamic Recrystallization ◽  
Grain Refinement ◽  
Equal Channel Angular Pressing ◽  
Fracture Strain ◽  
Mg Alloy ◽  
Sample Rotation ◽  
Angular Pressing

Abstract A commercial ZE41 Mg alloy was processed by equal channel angular pressing (ECAP) using route BC (90o sample rotation after each pass) and route C (180o sample rotation after each pass) at 250, 300 and 350 oC for up to 4 passes. Significant grain refinement from ∼150 μm to ∼33 μm occurred at the higher third and fourth ECAP passes. The most effective process among all routes and temperature combinations was via route C at 250 oC. Nearly 83% increase in yield strength, 58% increase in ultimate tensile strength, and 107% increase in fracture strain were observed after 4 ECAP passes using route C at 250 oC. The increase in the strength of the alloy was attributed to grain refinement during static and dynamic recrystallization. Fractography of tensile samples showed that shallow dimples change to fine dimples at higher passes modifying the failure mode from cleavage to ductile fracture.

Microstructure and Tensile Properties of In Situ Synthesized (TiB+TiC)/Ti-6Al-4V Composites

2007 ◽  
Vol 351 ◽  
pp. 201-207 ◽  
Author(s):  
Jun Qiang Lu ◽  
Wei Jie Lu ◽  
Yang Liu ◽  
Ji Ning Qin ◽  
Di Zhang
Keyword(s):  
Tensile Strength ◽  
Ultimate Tensile Strength ◽  
Yield Strength ◽  
Optical Microscopy ◽  
Tensile Properties ◽  
Room Temperature ◽  
Hot Forging ◽  
Matrix Composites ◽  
Fracture Type

In this paper, Ti-6Al-4V matrix composites reinforced with 5% or 10% TiB and TiC were in situ synthesized by common casting and hot-forging technology utilizing the reaction between titanium and B4C. The phase constituents were identified by XRD while transus temperatures were determined by DSC and metallography. The evolution of microstructures was studied by optical microscopy. The effects of reinforcements on the microstructures, tensile properties and fractures at room temperature were discussed. The results show that yield strength and ultimate tensile strength increased significantly while ductility decreased with reinforcements increasing. Fracture type turned to brittle when reinforcements increased.

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