The department conducts research work related problems:
– chemical-thermal, laser treatment construction materials and tools to improve their operational performance;
– creating foils and protective films by vacuum condensation and mikroduhovoho oxidation ion-plasma combustion for improving properties of machine parts;
– development of new alloys and composites based on metals in the form of foils obtained by crystallization in a vacuum for electronics and precision instrument making.
– research and development of nanostructured materials.
TECHNOLOGY MIKRODUHOVOGO OXIDATION DETAILS FROM VALVE METALS (AL-ALLOYS, Ti-ALLOYS AND OTHERS)
Provides education on the surfaces of solid (to microhardness 24000 MPa), endurance (ih ~10-10–10-12), corrosion-resistant, antifriction (f < 0,01), Heat fire resistant (to 1200 °С), elektroinsulating (to 600 V) ceramic layer thickness to ~ 0,3 mm:
– ceramic layer has perfect adhesion of the basic material;
– the formation possible of the ceramic layer of equal or variable thickness on internal and external surfaces of parts of virtually any configurations;
– technology is environmentally friendly.
Reduces costs by simplifying the design and replacement of the pre-rohyh materials (stainless steel, copper, bronze, brass, tin) on the details of Al-alloys with ceramic surfaces. Increased longevity of the product.
Applications: machine parts, instrumentation, aircraft and shipbuilding, Motors, defense industry, space technology, medicine, Food Industry.
Results of patentable, there are six patents on the results of developments.
1. Пат. на корисну модель № 117767 Україна, МПК В24D 5/16. Шліфу-вальний круг / Ю.Г. Гуцаленко, О.К. Севидова, В.В. Білозеров, Г.І. Махатілова; НТУ ХПІ, – u2017 00074; заявл. 03.01.2017 ; опубл. 10.07.2017, Бюл. № 13.
2. Патент на изобретение № 2119108 Уплотнительный элемент поршня / Севрук И.В., Минак А.Ф., Белозеров В.В., Махатилова А.И., Вурье Б.А. Опубл. 20.03.1998. Бюл. № 26.
3. Патент на изобретение № 2119587 Способ получения совместимости пар трения для двигателей внутреннего сгорания / Белозеров В.В., Махатилова А.И., Минак А.Ф., Севрук И.В., Вурье Б.А. Опубл. 27.09.1998. Бюл. № 27.
4. Патент на изобретение № 2120049 Способ изготовления поршневого кольца из легкого сплава / Минак А.Ф., Севрук И.В., Белозеров В.В., Махатилова А.И., Вурье Б.А. Опубл. 20.10.1998. Бюл. № 28.
5. Патент України на корисну модель № 18230 А Ущільнюючий елемент поршня/ Севрук І.В., Мінак А.Ф., Базавлук Ю.І., Белозеров В.В., Махатилова Г.І., Сухіх Л.Л. Опубл. 25.12.1997. Бюл. № 6.
6. Деклараційний патент на корисну модель № 10162 Спосіб зміцнення захисних покриттів на алюмінії та його сплавах / Білозеров В.В., Махатілова Г.І., Реброва О.М. Опубл. 15.11.2005. Бюл. № 11.
Development meets world standards. Development expands the scope valve metals and alloys: allows you to replace precious materials (copper, bronze, brass, tin) on valve metals with ceramic coating. In its wear resistance ceramic coating is 10-15 times greater than the anode, they are many times stronger than other film coatings for corrosion-bones stand Results of development can be realized in machine building, chemical, mining, light industry. Status of development – 100%. Results of development implemented at the plant chillers HOKTB HM, m. Kharkiv; SE “HAKB” m. Kharkiv; TSNIIPI “Typhoon”, m. Mykolaiv.
TECHNOLOGY THERMOCHEMICAL TREATMENT
A new technology for rapid diffusion coatings by saturating with new components.
The main advantage: speed up the process of saturation 2-5 times, significant saturation temperature decrease, introduction of clean technologies.
The technology could find application in almost all fields of technology.
1. Пат. на корисну модель № 117008 Україна, МПК С23С 14/32, С21D 1/06 . Спосіб хіміко-термічної обробки сталевих виробів / А.О. Анд-реєв, В.А. Александров, О.С. Жиров, О.В. Соболь, В.О. Столбовий, С.В. Шепель, С.М. Шевченко; Інститут фізики твердого тіла, матеріа-лознавства та технологій (ННЦ ХФТІ0, – u2017 00038; заявл. 03.01.2017 ; опубл. 12.06.2017, Бюл. № 11.
2. Патент України на корисну модель № 33654, МПК С23С 8/00 UA. Павлюченко О.О., Костик В.О., Костик К.О. Склад для борування сталевих виробів. – u 2008 00226. – Заявл. 04.01.2008. – Опубл. 10.07.2008. – Бюл. №13.
3. Патент України на корисну модель № 42478, МПК8 С 23 С 8/26-32 UA. Костик В.О., Літус К.О. Склад для азотування сталевих і титанових виробів. – u 2009 00225. – Заявл. 13.01.2009. – Опубл. 10.07.2009. – Бюл. №13.
TERMOFRYCTION PROCESSING TECHNOLOGY DEVELOPMENT FOR HARDENING MACHINES AND TOOLS
Currently termofryction processing method (TFP) typically used for cutting materials. At the same time use it as a method, that strengthens, studied not enough, and therefore the the possibility of using this method for strengthening of machine parts and tools are very limited.
The authors proposed a method using TFP is in a method, strengthening the surface layer in products from different materials. The technology termofryction strengthening carried out on flat-grinding and grinding machines without recycling, allowing to strengthen the flat and cylindrical surfaces respectively. At the same time as a tool, strengthening uses special drives that produced steel Ст3.
Strengthening material is in contact disk and the details that enhanced. Thus the intensity and depth of strengthening depends on the feed rate and depth of cut parts that can be taken in different proportions. Previous studies found that a number of steel TFP (Steel 45, У8, Ст3, 15Х11MF, Х12M, 65Г) causes an increase in the surface hardness and wear resistance of 2-3. We established the nature and mechanism of strengthening that is the simultaneous effect of temperature and pressure the material in the area of contact details and a tool. Obtain surface hardness of steel in detail 65Г, У8, Х12M at 20000 MPa, and the depth of the layer is strengthened at 1 mm. The existence in the surface layer stresses grip. This is a good indicator for the durability of the surface. In comparison with world analogues that provide maximum surface hardness to 12000 MPa and require temperature and pressure than the use of additional factors (magnetic field, synthetic oils, etc.), this method does not require additional factors, but provides a much greater level of hardness surface and depth of the layer is enhanced.
This technology is implemented on the basis of flat-grinding machine, or Circular grinding machine without processing. TFA The process is quite fast and for processing one the details required from 1 to 5 minutes. The results of development can be realized in the engineering, chemical, light industry. Schemes strengthen flat and cylindrical surfaces including monotremes and strengthening multipass technology. The technological modes of processing to strengthen materials designed optimal treatment regimes that ensure the achievement the degree of strengthening at 20,000 MPa at a depth of hardened layer up to 1 mm. The results metallographic, dyurometrychnyh test and study the stress state in the surface layers intensified details that confirm the effectiveness of this technology. Technology held testing at several conferences, such as MicroCAD, physical and computer technology in agriculture economy and others. So, being tested technology enterprises. conducted tests for furniture parts plant in the village Solonitsevka. The positive results.
HIGH TEMPERATURE EVOLUTION OF (SUBSTRUCTURE) COMPOSITES, THAT CRYSTALLIZE VAPOR IN A VACUUM
In binary systems Cu – Mo, W, Ta no mutual solubility in equilibrium conditions. But it compatible crystallization vapor mixtures of these components a vacuum may get supersaturated solutions of W, Mo, Ta in the crystal copper lattice. Next heat treatment of objects leads for irreversible of supersaturated solid solutions and the formation of typical composite structures. As a result, these materials get high electrical and strength properties.
Combined conductivity and strength foil composite Cu – Mo, Cu – W, and Cu – Ta exceeds existing analogues. Results of development can be implemented in enterprises the electronics industry.
MATERIALS WITH SHAPE MEMORY
Shape memory (ESM) allows deformed when heated object resume its original shape. The degree of recovery in metal form materials (such as Nitinol) – 50%. Temperature range adjustable recovery chemical composition of the material and its mode of pretreatment. The number of cycles can restore up 103-105.
The use of materials from EPF increases reliability by design implementation of direct conversion of heat energy into mechanical transmission without mechanisms. Size reactive voltage that occurs in metal alloys with EPF in the reverse transformation can reach 1000 MPa, meaning they are capable of work.
Scope: aviation and shipbuilding, instrumentation, Aerospace, defense industry, and medicine.
Successfully conducted a self-financing hospbyudzhetni research. The results of research over the last three years published more than 200 articles, patents more than 100 reports at international conferences.