Heat treatment of Kh18N9T steel after cold deformation

1963 ◽  
Vol 5 (10) ◽  
pp. 596-597
Author(s):  
N. N. Lyulicheva ◽  
N. V. Pisareva
Keyword(s):  
Heat Treatment ◽  
Cold Deformation ◽  
Kh18n9t Steel

Age-Hardening Characteristics of Cu-Ni-Si Alloy after Cold Deformation

2012 ◽  
Vol 217-219 ◽  
pp. 294-298 ◽  
Author(s):  
Xiang Peng Xiao ◽  
Bai Qing Xiong ◽  
Qiang Song Wang ◽  
Guo Liang Xie ◽  
Li Jun Peng
Keyword(s):  
Heat Treatment ◽  
Electrical Conductivity ◽  
Aging Time ◽  
Cold Deformation ◽  
Solution Treatment ◽  
The Other ◽  
Age Hardening ◽  
Precipitation Strengthening ◽  
Peak Hardness ◽  
Strengthening Mechanisms

The microstructural features and heat treatment response of Cu-2.1Ni-0.5Si-0.2Zr-0.05Cr (wt.%) alloy have been investigated. The alloy was aged at 400°C、450°C and 500°C after a cold deformation of 70% reduction. The variation in hardness and electrical conductivity of the alloy was measured as a function of aging time. The results indicated the highest peak hardness value of approximately 205HV for the alloy aged at 400°C for 4h after the solution treatment and cold deformation. The alloy has two main phases, one is Ni2Si phase, and the other is Cr2Zr phase. The strengthening mechanisms of the alloy include spinodal decomposition strengthening, ordering strengthening and precipitation strengthening.

Effect of cold deformation and heat treatment on the structure and mechanical properties of bonze Br013 alloyed with titanium and cerium

1990 ◽  
Vol 32 (11) ◽  
pp. 873-876
Author(s):  
V. F. Shamrai ◽  
Yu. V. Efimov ◽  
V. A. Lykhin ◽  
V. V. Nesgovorov ◽  
M. I. Timofeev ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Cold Deformation ◽  
Deformation And Heat Treatment

Effect of heat treatment on the ductile properties of heat-resistant alloy �I698-VD in cold deformation

1986 ◽  
Vol 28 (3) ◽  
pp. 224-227
Author(s):  
A. S. Kleshchev ◽  
N. N. Korneeva ◽  
A. A. Grebenets ◽  
L. V. Lyakhova
Keyword(s):  
Heat Treatment ◽  
Cold Deformation ◽  
Heat Resistant Alloy ◽  
Resistant Alloy ◽  
Heat Resistant

scholarly journals METALS HEAT TREATMENT MODEL

2020 ◽  
pp. 43-52
Author(s):  
Valery Ivaschenko ◽  
Gennady Shvachych ◽  
Maryna Sazonova ◽  
Olena Zaporozhchenko ◽  
Volodymyr Khristyan
Keyword(s):  
Heat Treatment ◽  
High Performance ◽  
Cold Deformation ◽  
Experimental Studies ◽  
Carbon Steels ◽  
Cold Forging ◽  
High Dispersion ◽  
Entire Plane ◽  
Temperature Conditions ◽  
Proposed Model

This paper considers the problem of developing a model of thermal metal processing by multiprocessor computing systems. The obtained metal is used for high-strength fasteners manufactured by cold forging method without final heat treatment. The model is based on the heat treatment method of a billet from low- and medium-carbon steels intended for cold heading. The model aims at improving technological properties of a billet by ensuring high dispersion and uniformity of a billet structure across the entire plane of its cross-section.Implementation of the proposed model ensures the technical result of high dispersion and uniformity of the structure of the billet. The technological process of steel heat treatment is characterized by high performance, low power consumption, and improved performance characteristics. The apparatus for implementation of the spheroidization annealing regime determines the uniform distribution of cementite globules in the ferrite matrix, which means that it provides the necessary mechanical properties of the metal for its further cold deformation. The multiprocessor computing system software allows controlling the temperature conditions, both on the entire plane of the billet section, and across its length. Such temperature conditions are controlled in the center of the plane of the billet cross-section.Experimental studies of the heat treatment of metal products were conducted. In order to test the functions of the proposed model, several experiments were performed when a 20 mm diameter wire from 20G2G steel was subjected to heat treatment. Experimental studies have shown that metal has the necessary elasticity properties, saving the required hardness.

J & L TYPE 301

Alloy Digest ◽  
2000 ◽  
Vol 49 (2) ◽  
Keyword(s):  
Heat Treatment ◽  
Tensile Strength ◽  
Cold Working ◽  
Cold Deformation ◽  
Heat Treating ◽  
High Tensile Strength ◽  
Annealed Condition ◽  
Treatment Type ◽  
Specialty Steel ◽  
Strength And Ductility

Abstract Type 301 (UNS S30100) is an austenitic chromium-nickel stainless steel capable of attaining high tensile strength and ductility by cold working. It is not hardenable by heat treatment. Type 301 is essentially nonmagnetic in the annealed condition and becomes magnetic with cold deformation. This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SS-775. Producer or source: J & L Specialty Steel Inc.

Effect of Cold Deformation on Thermal Stability of Bainite in Nb-Bearing Microalloyed Steels

2010 ◽  
Vol 638-642 ◽  
pp. 3093-3098
Author(s):  
Shan Wu Yang ◽  
H.Q. Lv ◽  
R. Zhang ◽  
Y. He ◽  
Xin Lai He
Keyword(s):  
Heat Treatment ◽  
Thermal Stability ◽  
Compressive Strain ◽  
Isothermal Holding ◽  
Cold Deformation ◽  
Hardness Measurement ◽  
Polygonal Ferrite ◽  
Microalloyed Steels ◽  
Isothermal Heat Treatment ◽  
Thermal Stability Of

Bainite in microalloyed steel possesses excellent synthetic mechanical properties. However, it will probably evolve towards equilibrium microstructure when it is subjected to thermal disturbance. In addition, bainite frequently undergoes more or less deformation during manufacture of steel structure. In the present investigation, cold deformation test, isothermal heat treatment, hardness measurement, optical microscopy and transmission electron microscopy were employed to detect evolution behavior of bainite isothermally held below A1 temperature. It was found that hardness of samples drops in generally during the isothermal heat treatment. Meanwhile, bainite evolves gradually into polygonal ferrite. Cold deformation enhances the initial hardness of samples while it largely accelerates softening and evolution of microstructure towards equilibrium one during heating. Almost same effects are produced by tensile strain and compressive strain. Higher solubility product of carbon and niobium results in higher thermal stability of bainite. Cold deformation cause dislocations in bainitic laths to distribute heterogeneously and most dislocations pile up along boundaries. During isothermal holding, dislocations redistribute further followed by extending of low dislocation density areas across lath boundaries. Finally, polygonal ferrite nucleates in those areas and grows gradually.

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