Barothermal Treatment, Cold Plastic Deformation, Microstructure and Properties of Binary Silumin Al–8 at % Si

The aim of this work was the microstructure and texture analysis of a deformed via cold-rolling 24.5Mn-3.5Si-1.5Al-Ti-Nb TWIP/TRIP type steel. It was found, that during cold plastic deformation a phase transformation of austenite into martensite takes place. The transformation progress was confirmed by the microscopic investigations. The texture of austenite is characterized by a limited α1=||RD fibre and the γ=||ND fibre. The texture of austenite changed with increasing deformation rate. In the texture of deformed austenite the strongest orientation is the {110} Goss orientation, which belongs to the α=||ND orientation fibre. During cold plastic deformation γ→ε and γ→ε→α’ phase transformations as well as the deformation of γ, ε and α’ phases are taking place in the steel. The formed ε phase (hexagonal structure) also possesses a distinct texture.

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Formation of microstructure and properties of Cu-3Ti alloy in thermal and thermomechanical processes

Archives of Metallurgy and Materials ◽

10.1515/amm-2017-0033 ◽

2017 ◽

Vol 62 (1) ◽

pp. 223-230 ◽

Cited By ~ 1

Author(s):

A. Szkliniarz

Keyword(s):

Mechanical Properties ◽

Electrical Conductivity ◽

Plastic Deformation ◽

Cold Working ◽

Cold Deformation ◽

Solution Treatment ◽

Cold Plastic Deformation ◽

Working Solution ◽

Thermomechanical Processes ◽

Selection Of

Abstract This paper presents the possibilities of forming the microstructure as well as mechanical properties and electrical conductivity of Cu-3Ti alloy (wt.%) in thermal and thermomechanical processes that are a combination of homogenising treatment, hot and cold working, solution treatment and ageing. Phase composition of the alloy following various stages of processing it into the specified semi-finished product was being determined too. It was demonstrated that the application of cold plastic deformation between solution treatment and ageing could significantly enhance the effect of hardening of the Cu-3Ti alloy without deteriorating its electrical conductivity. It was found that for the investigated alloy the selection of appropriate conditions for homogenising treatment, hot and cold deformation as well as solution treatment and ageing enables to obtain the properties comparable to those of beryllium bronzes.

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Microstructure and properties that change during hard cyclic visco-plastic deformation of bulk high purity niobium

International Journal of Refractory Metals and Hard Materials ◽

10.1016/j.ijrmhm.2018.10.009 ◽

2019 ◽

Vol 79 ◽

pp. 10-17 ◽

Cited By ~ 3

Author(s):

Lembit Kommel

Keyword(s):

Plastic Deformation ◽

High Purity ◽

Microstructure And Properties

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Physical model of «substrate-coating» system structuring in complex modification processes of surface layers in working parts of dies and press molds

Science intensive technologies in mechanical engineering ◽

10.30987/article_5bd8aa8a0c2539.01565105 ◽

2018 ◽

Vol 2018 (11) ◽

pp. 35-41

Author(s):

Олег Морозов ◽

Oleg Morozov ◽

Валерий Кокорин ◽

Valeriy Kokorin ◽

Владимир Табаков ◽

...

Keyword(s):

Plastic Deformation ◽

Physical Model ◽

Cold Plastic Deformation ◽

Coating System ◽

Resistant Steel ◽

Surface Layers ◽

Heat Resistant Steel ◽

Plasma Sputtering ◽

Ion Plasma ◽

Wear Coatings

Basic methods to increase durability of die working parts including processes of cold plastic deformation at anti-wear coatings application by a method of ion-plasma sputtering are considered. A physical model of cold plastic deformation of samples made of heat-resistant steel H12M is presented.

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