scholarly journals Thermal Stability of Ultra-Fine Grained Microstructure in Mg and Ti Alloys

2017 ◽  
Author(s):  
Jitka Stráská ◽  
Pavel Zháňal ◽  
Kristína Václavová ◽  
Josef Stráský ◽  
Petr Harcuba ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Fine Grained ◽  
Ti Alloys ◽  
Thermal Stability Of

A Study on Thermal Stability of CoSi2Employing Novel Fine-Grained Polycrystalline Silicon/CoSi2/Si (001) System

2001 ◽  
Vol 40 (Part 1, No. 11) ◽  
pp. 6307-6310
Author(s):  
Jong-Uk Bae ◽  
Dong Kyun Sohn ◽  
Ji-Soo Park ◽  
Chang Hee Han ◽  
Jin Won Park ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Polycrystalline Silicon ◽  
Fine Grained ◽  
Thermal Stability Of

Microstructure and thermal stability of Al–Ti alloys prepared by mechanical milling and reactive sintering

2007 ◽  
Vol 50 (1) ◽  
pp. 28-32
Author(s):  
D. Y. Peng ◽  
B. L. Li ◽  
X. L. Chen ◽  
E. Y. Jiang ◽  
H. L. Bai ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Mechanical Milling ◽  
Reactive Sintering ◽  
Ti Alloys ◽  
Thermal Stability Of

Lattice defects in severely deformed biomedical Ti-6Al-7Nb alloy and thermal stability of its ultra-fine grained microstructure

2019 ◽  
Vol 788 ◽  
pp. 881-890 ◽  
Author(s):  
Kristína Bartha ◽  
Pavel Zháňal ◽  
Josef Stráský ◽  
Jakub Čížek ◽  
Milan Dopita ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Lattice Defects ◽  
Fine Grained ◽  
Thermal Stability Of

Thermal Stability of the Structure and Mechanical Properties of Fine-Grained Aluminum Conductor Alloys Al–Mg–Zr–Sc(Yb)

2020 ◽  
Vol 2020 (9) ◽  
pp. 987-998
Author(s):  
V. N. Chuvil’deev ◽  
A. V. Nokhrin ◽  
Ya. S. Shadrina ◽  
A. V. Piskunov ◽  
V. I. Kopylov ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Thermal Stability ◽  
Fine Grained ◽  
Thermal Stability Of

Effect of secondary phase particles on thermal stability of ultra-fine grained Mg-4Y-3RE alloy prepared by equal channel angular pressing

2018 ◽  
Vol 140 ◽  
pp. 207-216 ◽  
Author(s):  
Peter Minárik ◽  
Jozef Veselý ◽  
Jakub Čížek ◽  
Mária Zemková ◽  
Tomáš Vlasák ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Equal Channel Angular Pressing ◽  
Secondary Phase ◽  
Fine Grained ◽  
Angular Pressing ◽  
Thermal Stability Of

Annealing Response of Al-0.22Sc-0.13Zr Alloy Processed by Accumulative Roll Bonding

2008 ◽  
Vol 584-586 ◽  
pp. 899-904 ◽  
Author(s):  
Petr Homola ◽  
Margarita Slámová ◽  
Vladivoj Očenášek ◽  
J. Uhlíř ◽  
Miroslav Cieslar
Keyword(s):  
Thermal Stability ◽  
Plastic Deformation ◽  
Accumulative Roll Bonding ◽  
Superplastic Forming ◽  
Aged Specimen ◽  
Roll Bonding ◽  
Fine Grained ◽  
Peak Aged ◽  
Pre Treatment ◽  
Thermal Stability Of

Ultra-fine grained (UFG) materials can be produced by several techniques involving severe plastic deformation (SPD). Accumulative Roll Bonding (ARB) is one of the SPD methods that enable the production of large amounts of UFG sheets. UFG sheets were prepared by up to six cycles of ARB at ambient temperature from an Al-0.22Sc-0.13Zr alloy in two states: a non-agehardened and a peak-aged. The effect of Al3(Sc1-xZrx) precipitates on the thermal stability of the UFG structures produced by ARB was investigated by isochronal annealing at temperatures between 200 and 550 °C. Additionally, the non-age-hardened ARB material was peak-aged prior to annealing and annealed together with both as-ARB-processed materials. The changes of microstructure and hardness due to annealing were studied. Annealing at 300 °C induces an additional strengthening in both non-pre-aged ARB materials that may be ascribed to precipitation and growth of coherent Al3(Sc1-xZrx) particles. This result suggests that the hardness decrease introduced by ARB in the peak-aged specimen is due to dissolution of precipitates during deformation. The annealing response of the materials above 300 °C does not depend on their thermal pre-treatment. However, the finely dispersed Al3(Sc1-xZrx) precipitates stabilise the refined deformed microstructure suitable for superplastic forming up to relatively high temperatures.

scholarly journals Study of Structure and Mechanical Properties of Fine-Grained Aluminum Alloys Al-0.6wt.%Mg-Zr-Sc with Ratio Zr:Sc = 1.5 Obtained by Cold Drawing

Materials ◽  
2019 ◽  
Vol 12 (2) ◽  
pp. 316 ◽  
Author(s):  
Aleksey Nokhrin ◽  
Iana Shadrina ◽  
Vladimir Chuvil’deev ◽  
Vladimir Kopylov
Keyword(s):  
Thermal Stability ◽  
Cold Deformation ◽  
Annealing Treatment ◽  
Cold Drawing ◽  
Fine Grained ◽  
Prolonged Annealing ◽  
Intermetallic Particles ◽  
Average Grain Size ◽  
Fine Grained Structure ◽  
Thermal Stability Of

The thermal stability of a fine-grained (FG) aluminum wire has been studied in Al-0.6Mg-Zr-Sc alloys with various scandium and zirconium contents. Specimens were obtained by induction casting followed by cold deformation. The FG alloys have been demonstrated to have high thermal stability of the structure and properties due to the annealing pretreatment (320 °C, 2 h, before drawing), which results in deposition of Al3(ScxZr1−x) intermetallic particles. It has been determined that following a prolonged annealing treatment (400 °C, 100 h), the alloys retain a uniform fine-grained structure with an average grain size of 2.4–2.8 μm whereas their microhardness measures 405–440 MPa.

scholarly journals Investigation of thermal stability of the structure and properties of ultra-fine-grained copper alloys obtained by ECAP

2019 ◽  
Vol 1347 ◽  
pp. 012024
Author(s):  
V N Chuvil’deev ◽  
A V Nokhrin ◽  
V I Kopylov ◽  
N V Melekhin ◽  
I S Shadrina ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Copper Alloys ◽  
Structure And Properties ◽  
Fine Grained ◽  
Thermal Stability Of
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