The article discusses the features of structure formation during thermal
cycling treatment of hypo eutectoid structural steels 20, 40X and 65G. The process of
thermal cycling treatment with heating without phase recrystallization and with complete
phase recrystallization has been studied. Thermal cyclic treatment without phase
recrystallization forms residual thermal stresses, causing an increase in the density of
dislocations, the development of the initial stages of recrystallization. The maximum
level of residual stresses is formed after 5 cycles. Thermal cyclic treatment with
complete phase recrystallization leads to the development of recrystallization processes
of varying intensity on the surface in the core of the steel sample. After 4 cycles, a
collective recrystallization is possible on the surface with obtaining a grain size
difference. In the core, the processes of polygonization and “recrystallization in place”
take place.
The article discusses the features of structure formation during thermal
cycling treatment of hypo eutectoid structural steels 20, 40X and 65G. The process of
thermal cycling treatment with heating without phase recrystallization and with complete
phase recrystallization has been studied. Thermal cyclic treatment without phase
recrystallization forms residual thermal stresses, causing an increase in the density of
dislocations, the development of the initial stages of recrystallization. The maximum
level of residual stresses is formed after 5 cycles. Thermal cyclic treatment with
complete phase recrystallization leads to the development of recrystallization processes
of varying intensity on the surface in the core of the steel sample. After 4 cycles, a
collective recrystallization is possible on the surface with obtaining a grain size
difference. In the core, the processes of polygonization and “recrystallization in place”
take place.
| № | Муаллифнинг исми | Лавозими | Ташкилот номи |
|---|---|---|---|
| 1 | Yusupov A.A. | teacher | TSTU |
| 2 | Berdiev D.M. | teacher | TSTU |
| 3 | Konstantinov V.M. | teacher | Belarusian National Technical University |
| 4 | Tkachenko G.A. | teacher | Belarusian National Technical University |
| № | Ҳавола номи |
|---|---|
| 1 | V.K. Fedyukin, M.Y. Smagorinsky. “Thermocyclic processing of metals and machine parts”. 1989. 241 |
| 2 | I.N. Kidin. “Physical bases of electro thermal treatment of metals and alloys”. 1969. 376 |
| 3 | A.S. Tikhonov. “Thermo cyclic treatment of steels, alloys and composite materials”. 1984. 168 |
| 4 | V.S. Biront. “Theory of heat treatment of metals”. 2007. 234 |
| 5 | A.M. Guriev, L.G. Voroshnin, Y.P. Kharayev. “Thermocyclic and chemical-thermo cyclic hardening of steels”. 2005. 36 |
| 6 | A.M. Guryev, L.G. Voroshnin. Cyclic thermal influence during HT and HTO of tool steels. “Fundamental problems of modern materials science”. 2005. 37 |
| 7 | A.I. Yevdokimov. “Cyclic hardening of CVG steel”. 2002. 33 |
| 8 | B.K. Tilabov. Improving the wear resistance of parts with hard-alloy coatings by heat treatment. “News. HEO. Ferrous metallurgy”. 2003. 35 |
| 9 | V.A. Batayev, A.A. Batayev, A.P. Alkhimov. “Methods of structural analysis of materials and quality control of parts”. 2007. 224 |
| 10 | Ch. Shiras, T. Assano. “Micro lens for coupling a semiconductor laser to a singlemode fiber”. 1986. 537 |
| 11 | W.H. Cheng, C.S. Wang, C.J. Hwang. Highly efficient power coupling between “Galas lasers and tapered hemispherical end multimode fibers”. 1982. 3409 |
| 12 | G.P. Fetisov, F.A. Garifullin. “Materials science and technology of materials”. 2014. 397 |
| 13 | D.M. Berdiev, A.A. Yusupov. Improvement of wear resistance gear’s teeth by cyclic hardening with induction heating. “Vesting mechanical engineering”. 2020. 50 |
| 14 | D.M. Berdiev, A.A. Yusupov. Improving the Wear Resistance of Gear Teeth by Cyclic Quenching with Inductive Heating. “Russian Engineering Research”. 2020. 473 |
| 15 | G.A. Tkachenko, V.M. Konstantinov. Electro-chemical-thermal treatment of fasteners to tillage’s machines. “Metallurgy: Republic. Interdepartmental” 2008. 358 |
| 16 | V.M. Konstantinov, G.A. Tkachenko. Hardening of bistro-wear parts of soilcultivating plows with nitro-carburizing with local sic- lick induction heating. “Hardening technologies and coatings”. 2011. 44 |