Development of Combined Machining Modes, Investigation of Mechanical Properties and Structure of Deformed Semi-Finished Products from Alloy 01417

2020 ◽  
Vol 992 ◽  
pp. 498-503
Author(s):  
S. Sidelnikov ◽  
D. Voroshilov ◽  
M. Motkov ◽  
M. Voroshilova ◽  
V. Bespalov
Keyword(s):  
Mechanical Properties ◽  
Rare Earth Metals ◽  
Electrophysical Properties ◽  
Intermediate Annealing ◽  
Plastic Properties ◽  
Bar Rolling ◽  
Annealing Temperatures ◽  
Continuous Ingot ◽  
The Wire ◽  
Deformation Modes

The article presents the results of studies on the production of wire with a diameter of 0.5 mm from aluminum alloy 01417 with a content of rare-earth metals (REM) in the amount of 7-9% for aircraft construction needs. The deformation modes, the experimental technique and equipment for the implementation of the proposed technology described. The wire was obtained by drawing and bar rolling with subsequent drawing from a rod with a diameter of 5 mm, obtained previously using the process of combined rolling-extruding (CRE) from a continuous ingot with a diameter of 12 mm, cast in an electromagnetic mold (EMM). The wire obtained by the presented technology was subjected to 4 different heat treatment modes with annealing temperatures from 350 to 500 °C and holding time of 1 h in the furnace to achieve mechanical and electrophysical properties corresponding to TS 1-809-1038-2018. The level of strength and plastic properties obtained in the course of research required only one intermediate annealing. The microstructure of the wire was investigated and the modes were revealed that made it possible to obtain the required level of mechanical properties and electrical resistivity, satisfying TS 1-809-1038-2018.

scholarly journals The influence of the characteristics of breaking test units on the results of testing plastic properties of the wire RML

2019 ◽  
pp. 89-94
Author(s):  
N. A. Akunets
Keyword(s):  
Mechanical Properties ◽  
Test Results ◽  
Test Unit ◽  
Plastic Properties ◽  
Metal Cord ◽  
Factors Affecting ◽  
Test Conditions ◽  
Metal Products ◽  
The Wire

For metal products manufactured by hardware shops (metal cord, PML wire and side bronzed wire), the most important mechanical properties are those, that determine the strength, ductility and other characteristics of the materials. The article describes the characteristics of breaking test unit that affect the results of tests of plastic properties of RML wire. The analysis of the test conditions and factors affecting the test results was made.

Texture evolution and mechanical properties of Al–Mg–Si alloys at different intermediate annealing temperatures

Rare Metals ◽  
2019 ◽  
Vol 38 (10) ◽  
pp. 937-945 ◽  
Author(s):  
Yong Li ◽  
Qi-Pan Wang ◽  
Guan-Jun Gao ◽  
Jia-Dong Li ◽  
Zhao-Dong Wang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Texture Evolution ◽  
Intermediate Annealing ◽  
Annealing Temperatures

ALZ 305

Alloy Digest ◽  
1999 ◽  
Vol 48 (9) ◽  
Keyword(s):  
Mechanical Properties ◽  
Stainless Steel ◽  
Corrosion Resistance ◽  
Austenitic Stainless Steel ◽  
Physical Properties ◽  
Deep Drawing ◽  
Heat Treating ◽  
Intermediate Annealing ◽  
Good Corrosion Resistance

Abstract ALZ 305 is an austenitic stainless steel with excellent formability and good corrosion resistance, toughness, and mechanical properties. The higher amount of nickel in this grade enables high deep-drawing deformation without intermediate annealing. This datasheet provides information on composition, physical properties, and elasticity. It also includes information on corrosion resistance as well as forming, heat treating, and joining. Filing Code: SS-762. Producer or source: ALZ nv.

scholarly journals Enhanced electrical conductivity and mechanical properties in thermally stable fine-grained copper wire

2021 ◽  
Vol 2 (1) ◽  
Author(s):  
Qingzhong Mao ◽  
Yusheng Zhang ◽  
Yazhou Guo ◽  
Yonghao Zhao
Keyword(s):  
Mechanical Properties ◽  
Thermal Stability ◽  
Electrical Conductivity ◽  
Yield Strength ◽  
High Speed ◽  
Copper Wire ◽  
Rapid Development ◽  
Dislocation Slip ◽  
Ultrafine Grains ◽  
The Wire

AbstractThe rapid development of high-speed rail requires copper contact wire that simultaneously possesses excellent electrical conductivity, thermal stability and mechanical properties. Unfortunately, these are generally mutually exclusive properties. Here, we demonstrate directional optimization of microstructure and overcome the strength-conductivity tradeoff in copper wire. We use rotary swaging to prepare copper wire with a fiber texture and long ultrafine grains aligned along the wire axis. The wire exhibits a high electrical conductivity of 97% of the international annealed copper standard (IACS), a yield strength of over 450 MPa, high impact and wear resistances, and thermal stability of up to 573 K for 1 h. Subsequent annealing enhances the conductivity to 103 % of IACS while maintaining a yield strength above 380 MPa. The long grains provide a channel for free electrons, while the low-angle grain boundaries between ultrafine grains block dislocation slip and crack propagation, and lower the ability for boundary migration.

scholarly journals Nano-mechanical Properties of Nanocrystal of HfO2Thin Films for Various Oxygen Gas Flows and Annealing Temperatures

2012 ◽  
Vol 21 (5) ◽  
pp. 273-278 ◽  
Author(s):  
Joo-Young Kim ◽  
Soo-In Kim ◽  
Kyu-Young Lee ◽  
Ku-Eun Kwon ◽  
Min-Suk Kim ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Gas Flows ◽  
Annealing Temperatures ◽  
Oxygen Gas

scholarly journals HERMETIZATION OF VALVE SEALS FOR CRYOGENIC FLUIDS

2020 ◽  
Vol 6 (2) ◽  
pp. 12-19
Author(s):  
Yuri I. Kondrashov ◽  
Elena N. Ermilova ◽  
Anna N. Vidyaskina
Keyword(s):  
Mechanical Properties ◽  
Contact Pressure ◽  
Phase State ◽  
Working Fluid ◽  
Cryogenic Temperatures ◽  
Two Phase ◽  
Plastic Properties ◽  
Cryogenic Fluids ◽  
Specific Contact ◽  
Flow Through

For units providing flow control for cryogenic fluids and operating under conditions of a significant change in the temperature range from positive to cryogenic and in a two-phase state of the working fluid, the problem of sealing the closure members of the units (valve pairs) becomes urgent.Joint sealing is ensured by creating contact pressure in the joint through deforming the roughness peaks obtained by surface treatment of the valve pair.The mechanical properties of the materials of the contacting valve pairs change significantly under the influence of cryogenic temperatures. First of all, the plastic properties are reduced, therefore, the creation of increased contact pressure is required.The article presents a methodology for evaluation of changes in the microgeometry of contacting surfaces depending on the specific contact pressure. It also allows one to evaluate the conductivity of microgaps in the viscous and molecular regimes of fluid flow through contacting surfaces.

scholarly journals Nanosurgical Manipulation of Titin and Its M-Complex

Nanomaterials ◽  
2022 ◽  
Vol 12 (2) ◽  
pp. 178
Author(s):  
Dominik Sziklai ◽  
Judit Sallai ◽  
Zsombor Papp ◽  
Dalma Kellermayer ◽  
Zsolt Mártonfalvi ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Thick Filament ◽  
Plastic Properties ◽  
Force Microscopy ◽  
Atomic Force ◽  
Thick Filaments ◽  
Volume Increment ◽  
Associated Proteins ◽  
Cross Links ◽  
Globular Head

Titin is a multifunctional filamentous protein anchored in the M-band, a hexagonally organized supramolecular lattice in the middle of the muscle sarcomere. Functionally, the M-band is a framework that cross-links myosin thick filaments, organizes associated proteins, and maintains sarcomeric symmetry via its structural and putative mechanical properties. Part of the M-band appears at the C-terminal end of isolated titin molecules in the form of a globular head, named here the “M-complex”, which also serves as the point of head-to-head attachment of titin. We used high-resolution atomic force microscopy and nanosurgical manipulation to investigate the topographical and internal structure and local mechanical properties of the M-complex and its associated titin molecules. We find that the M-complex is a stable structure that corresponds to the transverse unit of the M-band organized around the myosin thick filament. M-complexes may be interlinked into an M-complex array that reflects the local structural and mechanical status of the transversal M-band lattice. Local segments of titin and the M-complex could be nanosurgically manipulated to achieve extension and domain unfolding. Long threads could be pulled out of the M-complex, suggesting that it is a compact supramolecular reservoir of extensible filaments. Nanosurgery evoked an unexpected volume increment in the M-complex, which may be related to its function as a mechanical spacer. The M-complex thus displays both elastic and plastic properties which support the idea that the M-band may be involved in mechanical functions within the muscle sarcomere.

scholarly journals Overview of test methods to determine strength and plastic properties of the wire

2018 ◽  
pp. 67-70
Author(s):  
M. A. Kukharenko ◽  
V. A. Mokhoreva
Keyword(s):  
Yield Strength ◽  
Length Change ◽  
Test Methods ◽  
Quality Characteristics ◽  
Thin Wire ◽  
Plastic Properties ◽  
Management Company ◽  
The Wire ◽  
Dial Indicator

The article presents various methods for determining the strength and plastic properties of the wire to assess the quality characteristics of the products produced in the steel shops of JSC «BMW – the Management Company of the Holding «BMC».The methods of determining the propensity of a thin wire to laminations by reversing the twisting («Swedish» twist) and unilateral twisting, fixing the length change of the sample with a prefix with the dial indicator are considered. The article describes the procedure and results of research to determine the effect of the ratio of the conditional yield strength to the time resistance of the rupture on the plastic properties of the wire, the type of tensile diagram of the wire fragility.

scholarly journals The impact of cold deformation, annealing temperatures and chemical assays on the mechanical properties of platinum

2010 ◽  
Vol 46 (1) ◽  
pp. 51-57 ◽  
Author(s):  
B. Trumic ◽  
D. Stankovic ◽  
A. Ivanovic
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Annealing Temperature ◽  
Cold Deformation ◽  
Platinum Metals ◽  
Deformation Degree ◽  
Annealing Temperatures ◽  
Flow Limit ◽  
The Impact ◽  
Constant Deformation

In order to form the necessary data base on platinum and platinum metals, certain tests were carried out on platinum samples of different purity of 99.5%, 99.9% and 99.99%. The degree of cold deformation, annealing temperature and chemical assays were tested as well as their impact on the mechanical properties of platinum. The Vickers hardness (HV) values were determined with different deformation degree, starting from annealing temperatures for platinum of different purity and tensile strength (Rm), flow limit (Rp0,2) and elongation (A) in the function of annealing temperatures and annealing time at a constant deformation degree.

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