scholarly journals Investigation of the structure and properties of cold-rolled strips from experimental alloy 1580 with a reduced scandium content

2020 ◽  
Vol 109 (1-2) ◽  
pp. 443-450
Author(s):  
I. L. Konstantinov ◽  
V. N. Baranov ◽  
S. B. Sidelnikov ◽  
B. P. Kulikov ◽  
A. I. Bezrukikh ◽  
...  
Keyword(s):  
Experimental Alloy ◽  
Structure And Properties ◽  
Cold Rolled ◽  
Scandium Content

Structure and Properties of Cold Rolled and Annealed Commercial Purity Copper

1993 ◽  
Vol 113-115 ◽  
pp. 703-708 ◽  
Author(s):  
Dj. Drobnjak ◽  
P. Zivanovic ◽  
S. Vucic ◽  
Velimir Radmilović
Keyword(s):  
Structure And Properties ◽  
Commercial Purity ◽  
Cold Rolled ◽  
Purity Copper

scholarly journals Investigation Structure and Properties of Wire From The Alloy of Al-rem System Obtained With The Application of Casting in The Electromagnetic Mold, Combined Rolling-Extruding and Drawing

2021 ◽  
Author(s):  
Sergey Borisovich Sidelnikov ◽  
Denis Sergeevich Voroshilov ◽  
Mikhail Mikhaylovich Motkov ◽  
Viktor Nikolaevich Timofeev ◽  
Igor Lazarevich Konstantinov ◽  
...  
Keyword(s):  
Rare Earth ◽  
Relative Elongation ◽  
Experimental Studies ◽  
Earth Metal ◽  
Experimental Alloy ◽  
Structure And Properties ◽  
Technological Parameters ◽  
Laboratory Unit ◽  
Stable Mode ◽  
Cold Worked

Abstract The paper presents the results of studies of the structure and properties of a wire with a diameter of 0.5 mm from an alloy of the Al-REM system with a rare-earth metal content of 7-9%. Wire obtained as a result of the implementation of the technology of its manufacture using the methods of casting into an electromagnetic mold (EMM), continuous extruding and drawing.The rheological properties of the metal of continuously cast round billets from the experimental alloy obtained using an electromagnetic mold are determined. The modeling and analytical assessment of the possibility of carrying out the process of combined rolling-extruding (CRE) of such billets in a closed box-type roll groove of a continuous extruding unit are carried out. The features of metal shaping have been studied. The temperature-speed and technological parameters was found at which the CRE process can be carried out in a stable mode of operation. Data have been obtained for the forces acting on the die and rolls and the moments on the rolls during rolling-extruding.The results of experimental studies of the process of obtaining longish deformed semi-finished products from an experimental alloy on the laboratory unit CRE-200 and the pilot plant unit CRE-400 are presented. The structure of the metal has been studied; data on the ultimate tensile strength, yield strength, relative elongation, and electrical resistivity of hot-extruded rods and wires in cold-worked and annealed states have been obtained.It was found that the proposed processing modes make it possible to obtain by the method of combined rolling-extruding rods with a diameter of 9 mm in industrial conditions from longish billets with a diameter of 18 mm, cast by means of EMM. Wire in a cold-worked and annealed state with a diameter of 0.5 obtained by drawing from the rods with a diameter of 9 mm from an experimental alloy of the Al-REM system containing 7-9 rare earth metals with the required physical and mechanical properties.

Structure and properties of severely cold-rolled and annealed Ti–Ni shape memory alloys

2008 ◽  
Vol 481-482 ◽  
pp. 114-118 ◽  
Author(s):  
S.D. Prokoshkin ◽  
V. Brailovski ◽  
K.E. Inaekyan ◽  
V. Demers ◽  
I.Yu. Khmelevskaya ◽  
...  
Keyword(s):  
Shape Memory Alloys ◽  
Shape Memory ◽  
Structure And Properties ◽  
Cold Rolled

scholarly journals STRUCTURE AND PROPERTIES OF ROLLED STEEL AFTER SKIN-ROLLING ACCORDING TO DIFFERENT TECHNOLOGICAL PRODUCTION SCHEMES

2021 ◽  
pp. 46-54
Author(s):  
V.Z. KUTSOVA ◽  
М. А. KOVZEL ◽  
T.V. KOTOVA
Keyword(s):  
Sheet Steel ◽  
Thin Sheet ◽  
Plate Steel ◽  
Rolled Steel ◽  
Structure And Properties ◽  
Low Carbon ◽  
Cold Rolled ◽  
Hot Rolled ◽  
Cold Stamping ◽  
Skin Rolling

Problem statement. Development of an effective technology for the skin-rolling will allow the production of hot-rolled sheet products with quality indicators that meet the requirements of standards for cold-rolled sheets. Consumers with significant economic benefits will be able to use relatively inexpensive hot-rolled sheets instead of expensive cold-rolled sheets. The purpose of the article: establishment of the effect of skin-rolling to various technological schemes for the production of hot rolled fine and thickness rolled for cold stamping on the structure and properties of the metal. Conclusion. The patterns of the formation of the structure and properties after skin-rolling of hot rolling sheet steel and plate steel  for cold stamping are established. It is shown that with an increase in the degree of deformation during skin-rolling in the unit cutting unit, there is a decrease in the plasticity of hot-rolled plate steel strips of low carbon steels. As a result of heat treatment and skin-rolling on a separately located mill of hot rolled, thin-sheet low carbon steel, the plasticity of the metal rises and a homogeneous structure is formed in accordance with the requirements of ДСТУ 2834-94. Obtaining hot-rolled thin-sheet steel with quality indicators at the level of requirements for cold-rolled metal will allow the use of hot-rolled steel instead of cold-rolled one, which will ensure an increase in labor productivity and savings electricity.

Developing methods of controlling the structure and properties of cold-rolled steel to increase usable output and stabilize mechanical characteristics

Metallurgist ◽  
2007 ◽  
Vol 51 (1-2) ◽  
pp. 105-115
Author(s):  
I. G. Rodionova ◽  
N. G. Shaposhnikov ◽  
T. M. Efimova ◽  
D. A. Burko ◽  
N. V. Skomorokhova ◽  
...  
Keyword(s):  
Mechanical Characteristics ◽  
Rolled Steel ◽  
Structure And Properties ◽  
Cold Rolled Steel ◽  
Cold Rolled

The Effect of Mn Addition on Recrystallization of Cold Rolled Al-Mg-Si-Cu Alloy

2010 ◽  
Vol 146-147 ◽  
pp. 1874-1877 ◽  
Author(s):  
You Bin Wang ◽  
Yi Lin ◽  
Jian Min Zeng
Keyword(s):  
Activation Energy ◽  
Temperature Increase ◽  
Recrystallization Temperature ◽  
Structure And Properties ◽  
Cu Alloy ◽  
Mn Content ◽  
Cold Rolled ◽  
Start Temperature

Small amounts of Mn have been used in order to modify the microstructure and thus improve the properties of the alloys. The effect of Mn addition on structure and properties of cold rolled Al-Mg-Si-Cu alloy at different annealed temperatures is presented in this paper. Both recrystallization temperature and activation energy of recrystallization are obtained from the hardness-temperature curves. The results show that Mn can have an inhibitive effect on recrystallization. Within a certain concentration of Mn in the alloy (<0.7 wt.%) both the activation energy of recrystallization and recrystallization start temperature increase with the addition of Mn content. The activation energy of recrystallization of the alloy which contains 0 wt.% Mn, 0.3 wt.% Mn and 0.7 wt.% Mn are respectively 134.4 kJ·mol-1, 137.4 kJ·mol-1 and 140.1 kJ·mol-1 and the recrystallization start temperature increases from 190 to 230 as Mn content increases from 0 to 0.7 wt.%.

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