Structural and Phase Changes in Tin Coatings Subjected to Thermal Treatment

2020 ◽  
Vol 839 ◽  
pp. 131-136
Author(s):  
Aidar Kenesbekov ◽  
Bauyrzhan K. Rakhadilov ◽  
Rauan Kozhanova ◽  
Olga Stepanova
Keyword(s):  
Heat Treatment ◽  
Thermal Treatment ◽  
Phase Transformations ◽  
Thermal Annealing ◽  
Phase State ◽  
Structural Phase ◽  
Phase Changes ◽  
Structural Phase State ◽  
Tin Coatings ◽  
Structural Phase Transformations

This work presents the experimental results of the study of the effect of heat treatment on the structural-phase state of TiN coatings on the surface of 67KH5B alloy. It is determined that thermal annealing leads to structural phase transformations at the interface between the coating and the substrate. It was established that after annealing at Т=800 °С, due to the redistribution of the coating elements and the substrate, a modified coating is formed consisting of the TiN, Ti2N and NiTi phases.

FEATURES OF THE FORMATION OF THE STRUCTURAL-PHASE STATE OF THE EP648 ALLOY DURING SELECTIVE LASE MANUFACTURE

2021 ◽  
pp. 3-11
Author(s):  
O.G. Ospennikova ◽  
◽  
S.A. Naprienko ◽  
P.N. Medvedev ◽  
D.V. Zaitsev ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Uniform Distribution ◽  
Crystallographic Texture ◽  
Phase State ◽  
Fine Particles ◽  
Structural Phase ◽  
Hot Isostatic Pressing ◽  
Initial State ◽  
Plastic Properties ◽  
Structural Phase State

The paper shows the features of the formation of the structural-phase and textural state of the EP648 alloy obtained by the SLM method in the initial state, after hot isostatic pressing and heat treatment. It was found that in the process of synthesis, a limited crystallographic texture of the γ-phase is formed, which does not undergo significant changes in the process of subsequent treatments. The uniform distribution of fine particles of the hardening phases, apparently, leads to an increase in both the strength and plastic properties of the material obtained by the SLM method in comparison with the material obtained by the traditional technology.

Structural-phase transformations in SiOx films in the course of vacuum heat treatment

2003 ◽  
Vol 37 (1) ◽  
pp. 97-102 ◽  
Author(s):  
I. P. Lisovskyy ◽  
I. Z. Indutnyy ◽  
B. N. Gnennyy ◽  
P. M. Lytvyn ◽  
D. O. Mazunov ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Phase Transformations ◽  
Structural Phase ◽  
Vacuum Heat Treatment ◽  
Structural Phase Transformations

scholarly journals The influence of heat treatment on the structural phase state and durometric properties of small-sized castings from a copper alloy Cu-Cr-Al

2020 ◽  
pp. 22-25
Author(s):  
E. I. Marukovich ◽  
V. A. Kukareko ◽  
V. A. Kharkov ◽  
V. A. Kushnerov ◽  
I. O. Sazonenko
Keyword(s):  
Heat Treatment ◽  
Solid Solution ◽  
Crystal Lattice ◽  
Copper Alloy ◽  
Phase State ◽  
Structural Phase ◽  
Lattice Parameter ◽  
Crystal Lattice Parameter ◽  
Al Alloy ◽  
Structural Phase State

The effect of heat treatment on the structural-phase state and hardness of small-sized castings made from the Cu-Cr-Al copper alloy obtained by casting in a water-cooled metal mold is studied. Using X-ray diffraction analysis, it was found that the castings consist of a matrix solid solution based on copper. The increased value of the crystal lattice parameter of the copper phase is associated with aluminum atoms dissolved in it. After a low-temperature (450 °C) tempering for 10 hours, the crystal lattice parameter of the matrix solid solution decreases, which is associated with the formation of the Al8Cr5 intermetallic compound on the surface of the casting.It is established that after heat treatment (hardening and tempering), the hardness of castings from the Cu-Cr-Al alloy increases by 1.5 times.

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