Structure and properties of nickel-phosphorus coatings in relation to annealing temperature and time

1972 ◽  
Vol 14 (6) ◽  
pp. 498-502
Author(s):  
A. V. Ryabechenkov ◽  
V. V. Ovsyankin ◽  
Yu. A. Zot'ev
Keyword(s):  
Annealing Temperature ◽  
Structure And Properties

Effect of Annealing Temperature on the Surface Structure and Properties of Porous TiNi

2021 ◽  
Vol 57 (12) ◽  
pp. 1242-1249
Author(s):  
K. M. Dubovikov ◽  
A. S. Garin ◽  
E. S. Marchenko ◽  
G. A. Baigonakova ◽  
A. A. Shishelova ◽  
...  
Keyword(s):  
Surface Structure ◽  
Annealing Temperature ◽  
Structure And Properties

scholarly journals The The effect of iron on precipitation hardening in the Cu-Ni-Mn alloys

2021 ◽  
Vol 22 (3) ◽  
pp. 487-493
Author(s):  
O.V. Sukhova
Keyword(s):  
Precipitation Hardening ◽  
Annealing Temperature ◽  
Volume Fraction ◽  
Iron Oxidation ◽  
Quantitative Metallography ◽  
Structure And Properties ◽  
X Ray ◽  
Temperature Ranges ◽  
Fe Alloys ◽  
Scanning Electron

The peculiarities in the structure and properties formation of precipitation-hardened Сu–Ni–Mn–Fe alloys within the concentration range of Ni (19.3–21.0 %), Mn (19.5–20.5 %), Fe (0.6–2.7 %), Cu – balance (in wt. %) were investigated in this work. The methods of quantitative metallography, X-ray analysis, scanning electron microscopy, energy-dispersive spectroscopy and differential thermal analysis were applied. Two solid solutions based on a-Cu differing in composition and hardness were found in the structure of the cast Сu–Ni–Mn–Fe alloys. The temperature ranges of solutions’ formation were determined as (1010±10) °С and (890±10) °С, correspondingly. NiMn phase was also formed at (405±15) °С due to precipitation hardening. In the Сu–Ni–Mn–Fe alloys annealed at 500 and 900 °С for 60–750 hours, the volume fraction and size of NiMn precipitates increased with prolonging annealing time and lowering annealing temperature. As iron content was raised up to 2.7 wt. %, the density of NiMn precipitates increased, especially during first 60 hours of annealing at 900 °С. By adding iron, oxidation resistance was improved, but melting temperature and fluidity did not yield any significant change. Hardness of the Сu–Ni–Mn–Fe alloys with higher iron contents increased by 10 НRB on average. However, when test temperature was raised up to 400 °С, tensile strength decreased (by ~1.3 times) and elongation dropped markedly (by ~10 times).

Neutron and X-ray diffraction study of ferrite nanocrystals obtained by microwave-assisted growth. A structural comparison with the thermal synthetic route

2014 ◽  
Vol 47 (1) ◽  
pp. 414-420 ◽  
Author(s):  
Eduardo Solano ◽  
Carlos Frontera ◽  
Teresa Puig ◽  
Xavier Obradors ◽  
Susagna Ricart ◽  
...  
Keyword(s):  
Crystal Size ◽  
Annealing Temperature ◽  
Structure And Properties ◽  
X Ray Diffraction ◽  
Structural Comparison ◽  
X Ray ◽  
Microwave Assisted ◽  
Cationic Distribution ◽  
Lower Annealing Temperature ◽  
Microstructure And Magnetic Properties

Neutron and X-ray powder diffraction have been used to investigate the differences between the crystal growth of ferrite magnetic nanoparticles (MFe2O4withM= Mn, Fe, Co, Ni, Zn) by two methodologies: microwave radiation and thermal decomposition routes. Rietveld refinement has been used to extract the cationic distribution, the microstructure and magnetic information. Results for the nanoparticles produced by the two procedures evidence similar cationic distribution, microstructure and magnetic properties: complete cationic disorder forM= Mn and Co, crystal size around/below 10 nmetc. It is thus proven that microwave-assisted growth is a promising eco-friendly synthetic technique for the generation of high-quality nanocrystals with comparable structure and properties to those produced by the thermal methodology, even though the microwave route needs a shorter time and lower annealing temperature to obtain the final crystal nanoparticles.

Effects of annealing temperature on the crystal structure and properties of electroless deposited Ni–W–Cr–P alloy coatings

2008 ◽  
Vol 255 (5) ◽  
pp. 1686-1691 ◽  
Author(s):  
Ling Zhang ◽  
Yong Jin ◽  
Bo Peng ◽  
Yifan Zhang ◽  
Xuejuan Wang ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Annealing Temperature ◽  
Structure And Properties

Effects of Annealing Temperature on Structure and Properties of PLBZT Ferroelectric Thin Films Synthesized by Sol-Gel Processing

2012 ◽  
Vol 602-604 ◽  
pp. 1461-1464
Author(s):  
Hua Wang ◽  
Li Liu ◽  
Ji Wen Xu ◽  
Ling Yang ◽  
Shang Ju Zhou
Keyword(s):  
Thin Films ◽  
Remanent Polarization ◽  
Annealing Temperature ◽  
Sol Gel ◽  
Pyrochlore Phase ◽  
Ferroelectric Thin Films ◽  
Structure And Properties ◽  
Maximum Value ◽  
Processing Effects ◽  
Gel Processing

[Pb0.95(La0.6Bi0.4)0.05][Zr0.53Ti0.47]O3 (PLBZT) ferroelectric thin films have been synthesized on ITO-coated glass by sol-gel processing. Effects of annealing temperature on structure and properties of PLBZT have been investigated. With the increase of annealing temperature from 500°C to 550°C, the remanent polarization Pr increase slightly to the maximum value of 25.4μC/cm2 due to the improvement in crystallization of PLBZT films. However, when the annealing temperature is more than 550°C, the pyrochlore phase appear and degrade the Pr of PLBZT thin films. The lowest leakage current density of 1.8×10-9 A/cm2 can be observed in PLBZT thin films when the annealing temperature is 550°C.

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