scholarly journals Hot hydrostatic extrusion of Ti/Cu-alloy composite materials.

1988 ◽  
Vol 37 (413) ◽  
pp. 107-113 ◽  
Author(s):  
Tomiharu MATSUSHITA ◽  
Masataka NOGUCHI ◽  
Kazuo ARIMURA
Keyword(s):  
Composite Materials ◽  
Hydrostatic Extrusion ◽  
Alloy Composite ◽  
Cu Alloy

scholarly journals Age-precipitation in Al2O3 particle/Al-Cu alloy and SiC particle/Al-Cu-Mg alloy composite materials.

1996 ◽  
Vol 46 (1) ◽  
pp. 9-14 ◽  
Author(s):  
Susumu IKENO ◽  
Katsuya FURUTA ◽  
Takeshi TERAKI ◽  
Kenji MATSUDA ◽  
Hiroshi ANADA ◽  
...  
Keyword(s):  
Composite Materials ◽  
Al2o3 Particle ◽  
Mg Alloy ◽  
Alloy Composite ◽  
Cu Alloy ◽  
Sic Particle

Age-hardening Behavior of MgB2 Particle Dispersed Al Alloy Composite Materials

2012 ◽  
pp. 1039-1042
Author(s):  
Chihaya Kawamoto ◽  
Kenji Matsuda ◽  
Satoshi Murakami ◽  
Daisuke Tokai ◽  
Tokimasa Kawabata ◽  
...  
Keyword(s):  
Composite Materials ◽  
Age Hardening ◽  
Al Alloy ◽  
Alloy Composite ◽  
Hardening Behavior

Morphology studies of a W/Cu alloy synthesized by hydrogen reduction

2006 ◽  
Vol 21 (6) ◽  
pp. 1467-1475 ◽  
Author(s):  
U. Tilliander ◽  
H. Bergqvist ◽  
S. Seetharaman
Keyword(s):  
Electron Microscopy ◽  
Composite Materials ◽  
Hydrogen Reduction ◽  
Xrd Analysis ◽  
Grain Structure ◽  
Nanocrystalline State ◽  
Tem Analysis ◽  
Cu Alloy ◽  
Morphological Studies ◽  
Pure Cu

Because of the applications for W/Cu composite materials in high technology, the advantages of synthesizing this alloy by the hydrogen reduction route were investigated, with special attention to the properties of the product that was formed. Kinetic studies of reduction indicated that the mechanism changes significantly at 923 K, and the product had unusual properties. In the present work, morphological studies of the W/Cu alloy with 20 wt% Cu, produced at 923 K, were carried out by x-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM) analyses. The structural studies performed by XRD indicated that, at 923 K, Cu dissolved in W, forming a metastable solid solution in the nanocrystalline state. The samples produced at higher as well as lower temperatures, on the other hand, showed the presence of two phases, pure W and pure Cu. The SEM results were in agreement with the XRD analysis and confirmed the formation of W/Cu alloy. TEM analysis results confirmed the above observations and showed that the particle sizes were about 20 nm. The structure of the W/Cu alloy produced in the present work was compared with those for pure Cu, produced from Cu2O produced by hydrogen reduction under similar conditions. This indicated that the presence of W hinders the coalescence of Cu particles, and the alloy retains its nano-grain structure. The present results open up an interesting process route toward the production of intermetallic phases and composite materials under optimized conditions.

TEM Observation of Interface in Al2O3 Particle Dispersed Al-Mg-Si Alloy Composite Materials

2002 ◽  
Vol 396-402 ◽  
pp. 959-964
Author(s):  
Kenji Matsuda ◽  
Toshimasa Matsuki ◽  
Yasuhiro Uetani ◽  
Susumu Ikeno
Keyword(s):  
Composite Materials ◽  
Alloy Composite

Evaluation of Wear Behavior of Feldspar Particles Reinforced Copper Alloy Composite Materials

2007 ◽  
Vol 539-543 ◽  
pp. 797-802
Author(s):  
B.M. Satish ◽  
B.M. Girish
Keyword(s):  
Composite Materials ◽  
Wear Rate ◽  
Copper Alloy ◽  
Applied Load ◽  
Wear Behavior ◽  
Unreinforced Alloy ◽  
Alloy Composite ◽  
Sliding Speed ◽  
Severe Wear ◽  
Pin On Disc

The wear behavior of unreinforced as well as feldspar particles reinforced copper alloy (phosphor-bronze) composites was studied as a function of sliding speed and applied loads under unlubricated conditions. The content of feldspar particles in the composites was varied from 1- 5% by weight in steps of 2%. A pin-on-disc wear tester was used to evaluate the wear rate. Loads of 20-160 N in steps of 20 N and speeds of 1.25, 1.56, and 1.87 m/s were employed. The results indicated that the wear rate of both the composites and the alloy increased with increase in load and sliding speed. However, the composites exhibited lower wear rate than the alloy. It was found that above a critical applied load, there exists a transition from mild to severe wear both in the unreinforced alloy and in the composites. But the transition loads for the composites were much higher than that of the alloy. The transition loads increase with the increase in weight % of feldspar particles, but decreases with the increase in sliding speeds.

Mechanical properties and fractography of zircon-particle-reinforced ZA-27 alloy composite materials

1999 ◽  
Vol 59 (12) ◽  
pp. 1805-1812 ◽  
Author(s):  
S.C. Sharma ◽  
B.M. Girish ◽  
D.R. Somashekar ◽  
Rathnakar Kamath ◽  
B.M. Satish
Keyword(s):  
Mechanical Properties ◽  
Composite Materials ◽  
Alloy Composite ◽  
Zircon Particle
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