Thermoelectric and mechanical properties of ZrNi1+xSn Heusler composite alloy

2020 ◽  
Author(s):  
Ashish Kumar ◽  
Neelam Sharma ◽  
Aman Bhardwaj ◽  
Bal Govind ◽  
Sahiba Bano ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Composite Alloy

scholarly journals Mechanical Properties of Magnesium Composite Alloy with Mg2Si Dispersoids

2005 ◽  
Vol 52 (4) ◽  
pp. 282-286 ◽  
Author(s):  
Hideki Oginuma ◽  
Katsuyoshi Kondoh ◽  
Masaki Sumida ◽  
Eiji Yuasa
Keyword(s):  
Mechanical Properties ◽  
Composite Alloy

Mechanical Properties of the MG-Based Amorphous/Nano Zirconia Composite Alloy

2007 ◽  
pp. 925-930
Author(s):  
L.J. Chang ◽  
J.H. Young ◽  
P.T. Chiang ◽  
Jason S.C. Jang ◽  
J.C. Huang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Composite Alloy

scholarly journals Mechanical Properties of the Hot-Pressed Amorphous Mg65Cu20Y10Ag5/NanoZrO2 Composite Alloy

2007 ◽  
Vol 48 (7) ◽  
pp. 1797-1801 ◽  
Author(s):  
L. J. Chang ◽  
G. R. Fang ◽  
J. S. C. Jang ◽  
I. S. Lee ◽  
J. C. Huang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Composite Alloy

Study on the Deformation of TiNi/AlSi Composite Alloy Using DSCM Method

2008 ◽  
Vol 47-50 ◽  
pp. 829-832
Author(s):  
Qing Hua Wang ◽  
Hui Min Xie ◽  
Hai Chang Jiang ◽  
Bing Pan ◽  
Fu Long Dai
Keyword(s):  
Mechanical Properties ◽  
Elastic Modulus ◽  
Surface Deformation ◽  
Mechanical Vibration ◽  
Tensile Load ◽  
External Loading ◽  
Deformation Characteristics ◽  
Composite Alloy ◽  
Energy Absorbers

TiNi/Al-12%Si alloy is a kind of prospective material used as special energy absorbers for eliminating undesirable noise and mechanical vibration. The investigation on the mechanical properties of this composite alloy is of great importance. In this study, the surface deformation of TiNi/Al-12%Si composite alloy under external loading was measured experimentally by means of DSCM method. Some deformation characteristics of TiNi/AlSi composite alloy under the effect of the tensile load and the interaction between TiNi and AlSi are discussed. In addition, the elastic modulus and the poisson ' s ratio of this alloy were measured as well. The results agrees well with the theory predicts.

scholarly journals Mechanical Characterization of Aluminium-Silicon-Titanium Diboride (Al-Si-TiB2) Reinforced by Scandium (Sc) and Strontium (Sr)

2019 ◽  
Vol 7 (4.14) ◽  
pp. 392
Author(s):  
N. N.A. Basir ◽  
N. H. Mustafa ◽  
R. E. Ibrahim ◽  
R. Rosmamuhamadani ◽  
M. M. Mahat ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Titanium Diboride ◽  
High Strength ◽  
Matrix Composites ◽  
Composite Alloy ◽  
X Ray Diffraction ◽  
Hardness Tester ◽  
And Performance

Aluminium based metal matrix composites (MMCs) have better properties and performance. They are commonly used in transport applications which require combinations of high strength and ductility. They are quite attractive due to their low density, capability to be strengthened by precipitation, good corrosion resistance, high thermal and electrical conductivity. Grain refinement plays a crucial role in improving characteristics and properties of aluminium-silicon (Al-Si) alloy. In this investigation, scandium (Sc) and strontium (Sr) elements were added to aluminium-silicon-titanium diboride (Al-Si-TiB2) alloy for refinement of grains. The compositions of 93 wt.% Al-Si, 6 wt.% TiB2, 0.5 wt.% Sc and 0.5 wt.% Sr were melted into induction furnace. Then the composites have been characterized on the mechanical properties and microstructure characterization. Instron tensile machine and vickers hardness tester were used to characterize the mechanical properties of the composite alloy. Microstructure and phase composition were characterized by Field Emission Scanning Electron Microscope (FESEM) and X-ray Diffraction (XRD). From the results obtained, addition of Sc and Sr, into Al-S-TiB2 improved the tensile strength and hardness of composite alloy. Results also showed that the inoculants addition able to enhance the refinement of grains and escalate the values of hardness and tensile strength of Al-Si-TiB2 composite. Mechanical properties related much on the microstructure as it can be seen that the addition of grain refiners produced much higher value of mechanical properties.  

Mechanical Properties of the MG-Based Amorphous/Nano Zirconia Composite Alloy

2007 ◽  
Vol 539-543 ◽  
pp. 925-930 ◽  
Author(s):  
L.J. Chang ◽  
J.H. Young ◽  
P.T. Chiang ◽  
Jason S.C. Jang ◽  
J.C. Huang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Glass Transition ◽  
Transition Temperature ◽  
Mechanical Alloying ◽  
Hot Pressing ◽  
Planetary Mill ◽  
Composite Alloy ◽  
Bulk Specimen ◽  
Amorphous Nature ◽  
Increasing Trend

Mg-based composites are fabricated through mechanical alloying (MA) the Mg65Cu20Y10Ag5 amorphous alloy spun and mixed with 1-5 vol.% spherical nano-sized ZrO2 particles in the planetary mill, after then formed by hot pressing in Ar atmosphere under different pressures at the temperature 5 K above the glass transition temperature (Tg). The microstructure characterizations of the resulting specimens are conducted by means of XRD, FEG-SEM, and TEM techniques. It is found that the nano-sized ZrO2 dispersed Mg-based composite alloy powders can reach to a homogeneous size distribution (about 80 nm) after 50-hour mechanical alloying. After hot pressing of these composite alloy powders under the pressure of 1100 MPa at 409K, a 96% dense bulk specimen can be formed. Throughout the MA and hot pressing, the amorphous nature of the Mg65Cu25Y10Ag5 matrix is maintained. The hardness of the formed bulk Mg-based composites (with 3 vol.% nano-sized ZrO2 particles) can reach to 370 in Hv scale. In addition, the toughness of the formed bulk Mg-based composites presents an increasing trend with the content of nano-sized ZrO2 particles and can reach to 8.9 MPa m .

Phase Transformations in Ti-7w/oMo-3w/oMe Alloy

1974 ◽  
Vol 32 ◽  
pp. 514-515
Author(s):  
S. Fujishiro
Keyword(s):  
Electron Microscopy ◽  
Mechanical Properties ◽  
Transmission Electron Microscopy ◽  
Tensile Strength ◽  
Mechanical Processing ◽  
Ray Method ◽  
X Ray ◽  
Transmission Electron ◽  
Water Quench ◽  
Alpha Beta

The mechanical properties of three titanium alloys (Ti-7Mo-3Al, Ti-7Mo- 3Cu and Ti-7Mo-3Ta) were evaluated as function of: 1) Solutionizing in the beta field and aging, 2) Thermal Mechanical Processing in the beta field and aging, 3) Solutionizing in the alpha + beta field and aging. The samples were isothermally aged in the temperature range 300° to 700*C for 4 to 24 hours, followed by a water quench. Transmission electron microscopy and X-ray method were used to identify the phase formed. All three alloys solutionized at 1050°C (beta field) transformed to martensitic alpha (alpha prime) upon being water quenched. Despite this heavily strained alpha prime, which is characterized by microtwins the tensile strength of the as-quenched alloys is relatively low and the elongation is as high as 30%.

Effects of cooling rate on the mechanical properties of dual phase treated vanadium steels

1983 ◽  
Vol 41 ◽  
pp. 220-221
Author(s):  
L.J. Chen ◽  
H.C. Cheng ◽  
J.R. Gong ◽  
J.G. Yang
Keyword(s):  
Mechanical Properties ◽  
Cooling Rate ◽  
Automobile Industry ◽  
High Strength ◽  
Weight Percent ◽  
Low Alloy Steels ◽  
Dual Phase ◽  
Resource Requirement ◽  
Alloy Steels ◽  
Potential Weight

For fuel savings as well as energy and resource requirement, high strength low alloy steels (HSLA) are of particular interest to automobile industry because of the potential weight reduction which can be achieved by using thinner section of these steels to carry the same load and thus to improve the fuel mileage. Dual phase treatment has been utilized to obtain superior strength and ductility combinations compared to the HSLA of identical composition. Recently, cooling rate following heat treatment was found to be important to the tensile properties of the dual phase steels. In this paper, we report the results of the investigation of cooling rate on the microstructures and mechanical properties of several vanadium HSLA steels.The steels with composition (in weight percent) listed below were supplied by China Steel Corporation: 1. low V steel (0.11C, 0.65Si, 1.63Mn, 0.015P, 0.008S, 0.084Aℓ, 0.004V), 2. 0.059V steel (0.13C, 0.62S1, 1.59Mn, 0.012P, 0.008S, 0.065Aℓ, 0.059V), 3. 0.10V steel (0.11C, 0.58Si, 1.58Mn, 0.017P, 0.008S, 0.068Aℓ, 0.10V).

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