Frontier Materials & TechnologiesFrontier Materials & TechnologiesFrontier Materials & Technologies2782-40392782-6074Togliatti State University125710.18323/2782-4039-2026-3-77-6ArticlesСтатьиResearch ArticleInfluence of the composition of coatings based on titanium and zirconium nitrides on the mechanical properties and performance of cutting toolsВлияние состава покрытий на основе нитридов титана и циркония на механические свойства и работоспособность режущего инструментаhttps://orcid.org/0000-0002-2568-9401TabakovVladimir P.ТабаковВладимир Петрович
Russian Federation

Doctor of Sciences (Engineering), Professor

Доктор технических наук, профессор

vpt@ulstu.ruhttps://orcid.org/0000-0001-8241-2591MorozovOleg I.МорозовОлег Игоревич
Russian Federation

PhD (Engineering), Associate Professor

Кандидат технических наук, доцент

olmorozov-rabota@yandex.ruShavryginAleksandr S.ШаврыгинАлександр Сергеевич
Russian Federation

Postgraduate student

Аспирант

isashashav@gmail.comhttps://orcid.org/0000-0001-9181-5704KamenovRenat U.КаменовРенат Уахитович
Russian Federation

PhD (Engineering)

Кандидат технических наук

Renatkamenov@mail.ruUlyanovsk State Technical UniversityУльяновский государственный технический университетNational Research University of Electronic TechnologyМосковский институт электронной техникиTogliatti State University,Тольяттинский государственный университет30092026367773009202630092026Copyright ©; 2026, Tabakov V.P., Morozov O.I., Shavrygin A.S., Kamenov R.U.Copyright ©; 2026, Табаков В.П., Морозов О.И., Шаврыгин А.С., Каменов Р.У.2026Tabakov V.P., Morozov O.I., Shavrygin A.S., Kamenov R.U.Табаков В.П., Морозов О.И., Шаврыгин А.С., Каменов Р.У.https://creativecommons.org/licenses/by/4.0https://vektornaukitech.ru/jour/article/view/1257

Problem. The influence of chromium and aluminum as alloying elements on the substructural parameters, stress state, and cyclic crack resistance of TiZrN nitride coatings has not been systematically investigated,which hinders the informed selection of coating composition in the development of machining processes.Aim. To establish the patterns of the influence of chromium and aluminum alloying on the structure, mechanicalproperties, stress state, and cyclic crack resistance of TiZr-nitride coatings, as well as to evaluate their effect onthe tool life of MK8 and R6M5K5 inserts during turning of 30KhGSA steel. Methods. TiZrN, TiZrCrN (11.28 at.%Cr), and TiZrAlN (9.25 at.% Al) PVD coatings were investigated. Structural parameters were determined by X-raydiffraction analysis (DRON-3M); microhardness Hµ, elastic modulus E, and fracture toughness KIC were determinedby Knoop indentation. The stress state and cyclic crack resistance were calculated during turning of 30KhGSA steelwith MK8 inserts (V=180 m/min, t=0.5 mm) and R6M5K5 inserts (V=55 m/min, t=0.75 mm). Results. Al alloyinghas a stronger effect on the substructural parameters: for TiZrAlN, β111=0.67°, D=14 nm versus β111=0.55°, D=18 nmfor TiZrN. Both elements increase microhardness (43.2 and 42.2 GPa) and compressive residual stresses(up to −1422 MPa). TiZrAlN provided a tool life of MK8 inserts of 57 min at V=180 m/min – 2.0 times higher thanTiZrN and 1.3 times higher than TiZrCrN. Conclusions. The TiZrAlN coating (9.25 at.% Al) provides the best combination of substructural parameters, mechanical properties, and crack resistance among th e investigated Ti–Zr–Ncoatings and is recommended for application to MK8 inserts in the turning of structural steels such as 30KhGSA.

Проблема. Выбор состава нитридных покрытий Ti–Zr–N при резании часто не учитывает влияние Crи Al на субструктуру, напряжения и трещиностойкость, что приводит к неоптимальным режимам, износу инструментаи снижению стабильности качества обработки. Цель. Установить закономерности влияния легирования хромом и алюминием на структуру, механические свойства, напряженное состояние и циклическую трещиностойкость TiZrнитридных покрытий, а также оценить их влияние на период стойкости пластин МК8 и Р6М5К5 при токарной обработке стали 30ХГСА. Методы. Исследовались PVD-покрытия TiZrN, TiZrCrN (11,28 ат.% Cr) и TiZrAlN (9,25 ат.% Al).Структурные параметры определяли рентгеноструктурным анализом (ДРОН-3М); микротвердость Hµ, модуль упругости E и вязкость разрушения KIC – методом индентирования по Кнупу. Напряженное состояние и циклическую трещиностойкость рассчитывали при точении стали 30ХГСА пластинами МК8 (V=180 м/мин, t=0,5 мм) и Р6М5К5(V=55 м/мин, t=0,75 мм). Результаты. Легирование Al сильнее влияет на субструктурные параметры: у TiZrAlNβ111=0,67°, D=14 нм против β111=0,55°, D=18 нм у TiZrN. Оба элемента повышают микротвердость (43,2 и 42,2 ГПа)и сжимающие остаточные напряжения (до −1422 МПа). TiZrAlN обеспечил период стойкости пластин МК8 57 мин приV=180 м/мин – в 2,0 раза выше TiZrN и в 1,3 раза выше TiZrCrN. Выводы. Покрытие TiZrAlN (9,25 ат.% Al) обеспечивает наилучшее сочетание субструктурных параметров, механических свойств и трещиностойкости среди исследованныхпокрытий Ti–Zr–N и рекомендуется для нанесения на пластины МК8 при токарной обработке конструкционных сталейтипа 30ХГСА.

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