Effect of prior heat treatment on the structure and properties of nitrided steels

2000 ◽  
Vol 42 (6) ◽  
pp. 226-227 ◽  
Author(s):  
S. A. Gerasimov ◽  
A. V. Zhikharev ◽  
V. A. Golikov ◽  
M. A. Gress ◽  
G. I. Zubarev
Keyword(s):  
Heat Treatment ◽  
Structure And Properties ◽  
Prior Heat Treatment

Changes in the structure and properties produced in polyester yarn by the heat treatment in the texturing process

1973 ◽  
Vol 4 (2) ◽  
pp. 179-181 ◽  
Author(s):  
L. P. Sebina ◽  
V. A. Usenko ◽  
B. A. Nefedov ◽  
V. K. Smirnov
Keyword(s):  
Heat Treatment ◽  
Structure And Properties ◽  
Polyester Yarn

The effect of heat-treatment temperature on structure and properties of TiB2/C composites

Carbon ◽  
2007 ◽  
Vol 45 (6) ◽  
pp. 1200-1211 ◽  
Author(s):  
Changjun Zhou ◽  
William S. Kinman ◽  
Paul J. McGinn
Keyword(s):  
Heat Treatment ◽  
Heat Treatment Temperature ◽  
Treatment Temperature ◽  
Structure And Properties

The structure and properties of sheets from the new alloy V-1381 of the Al – Mg – Si system

2021 ◽  
Vol 5 ◽  
pp. 18-27
Author(s):  
A. A. Selivanov ◽  
◽  
K. V. Antipov ◽  
Yu. S. Oglodkova ◽  
A. S. Rudchenko ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Arc Welding ◽  
Structure And Properties ◽  
Strengthening Phase ◽  
Critical Rate ◽  
Corrosion Properties ◽  
Β Phase ◽  
Mechanical And Corrosion Properties ◽  
20 Nm ◽  
6Xxx Series

The results of the development of a new alloy of the Al – Mg – Si system of the 6xxx series, which received the V-1381 grade, are presented. The influence of the composition and modes of heat treatment on the mechanical and corrosion properties of sheets with a thickness of 1,0 and 3,0 mm, manufactured under the conditions of FSUE “VIAM”, was investigated. Average level of sheet properties: UTS = 410 MPa, YTS = 360 MPa, El = 11.5 %; fatigue crack growth (dl/dN) = 0,59 mm/kcycle at ΔK = 18,6 MPa·m1/2, intergranular corrosion ≤ 0,15 mm, exfoliation corrosion 4 points. It was found that the structure of the sheets is recrystallized, the main strengthening phase is the coherent matrix β’(Mg2Si)-phase evenly distributed in the volume of grains with a high density. There is also a heterogeneous origin of β′-phase on dislocations and dispersoids. At grain boundaries there are zones free from emissions with a width of 15 – 20 nm. Dispersoids of various morphologies are observed in the tested samples. Temperature and heat values of phase transformations in ingots and sheets are determined and established liquidus and solidus points. The sheet weldability was evaluated by automatic argon-arc welding and the critical rate of deformation of the weld metal during crystallization was determined, at which no cracks were formed in it. Laser welding mode has been developed to ensure optimal formation of geometric parameters of the weld.

Regularities of the formation of the phase composition, structure and properties of the БрНХК 2.5-0.7-0.6 alloy during thermal and aerothermoacoustic treatments

2021 ◽  
pp. 71-75
Author(s):  
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Phase Composition ◽  
Aging Treatment ◽  
Structure And Properties ◽  
Additional Increase ◽  
Composition Structure ◽  
Aerothermoacoustic Treatment

The influence of thermal and aerothermoacoustic treatments on the structure and mechanical properties of БрНХК bronze is considered. An increase in the strength and elasticity of the alloy is established by optimizing the thermal and aerothermoacoustic modes. The influence of the pre-aging treatment, the aging and aerothermoacoustic modes on the structure, the possibility of an additional increase in the mechanical properties of wire from БрНХК after aerothermoacoustic treatment are shown. Keywords: bronze, heat treatment, aerothermoacoustic treatment, microstructure, mechanical properties. [email protected]

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