Effect of Friction Treatment on the Structure, Micromechanical and Tribological Properties of Austenitic Steel 03Kh16N14M3T

Макаров, А. В.; Скорынина, П. А.; Волкова, Е. Г.; Осинцева, А. Л.

doi:10.1007/s11041-020-00497-1

Cited by 10 publications

(7 citation statements)

References 8 publications

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“…Наноструктурирующая поверхностная механическая обработка SMAT аустенитной стали 316L (02Х17Н12М2Г2), близкой по составу к исследуемой в настоящей работе стали 03Х16Н15М3Т1, привела к упрочнению поверхности до 4,5 ГПа [37,38] В проведенном нами ранее исследовании [13] на поверхности аустенитной стали 03Х16Н14М3Т1 в условиях фрикционной обработки скользящим индентором из синтетического алмаза в безокислительной среде аргона наблюдали рост микроствердости до 720 HV 0,025 при общей глубине градиентно упрочненного слоя 300 мкм. Более интенсивному, чем в настоящей работе, упрочнению стали способствовал высокий коэффициент трения (f = 0,47) в процессе фрикционной обработки индентором из синтетического алмаза [13], в то время как при выглаживании индентором из природного алмаза даже без применения жидкой СОТС коэффициент трения не превышает 0,1 [39].…”

Section: результаты и их обсуждениеunclassified

“…Однако сформированные при ударных упрочняющих обработках поверхностные слои характеризуются высокой шероховатостью Ra = 1,0…2,5 мкм [11,12]. Значительно более эффективное упрочнение поверхности стали 03Х16Н14М3Т1 (от 270 до 580…720 HV 0,025) достигнуто фрикционной обработкой скользящим индентором из синтетического алмаза в среде аргона [13]. Такая обработка аустенитных хромоникелевых сталей может также обеспечить высокое качество формируемой поверхности с низкой шероховатостью [14,15].…”

Section: Introductionunclassified

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Normal force influence on smoothing and hardening of steel 03Cr16Ni15Mo3Ti1 surface layer during dry diamond burnishing with spherical indenter

Kuznetsov¹,

Makarov²,

Skorobogatov³

et al. 2022

Metal Working and Material Science

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Introduction. Sliding burnishing minimizes roughness and hardens of the steel surface. Quality of the formed surface and strength characteristics of the surface layer are determined by the burnishing speed, force and feed. Due to the danger of the surface micro-destruction during burnishing, the problem of selecting the favorable value of the normal force at a given feed arises. The current investigation aims to study the effect of normal force during dry diamond burnishing with a spherical indenter on smoothing the surface microprofile and strain hardening of the 03Cr16Ni15Mo3Ti1 austenitic steel surface layer. Research methods. Profilometry, scanning electron microscopy (SEM), microdurometry are used. Results and discussion. As the result of dry burnishing of deformation-stable austenitic steel 03Cr16Ni15Mo3Ti1 with a spherical indenter with a 2 mm radius made of natural diamond at a sliding speed of 10 m/min and feed rate of 0.025 mm/rev, it is found that in the investigated variation range of the burnishing normal force (100...200 N) the value of the smoothing coefficient of the initial steel surface microprofile after finish turning is 79...90 %, the greatest smoothing with a decrease in the average roughness parameter Ra from 1.0 to 0.1 µm is achieved at a force of 150 N; during diamond burnishing the initial (after finish turning) surface is hardened by 15...43 % (up to 382...444 HV), as the burnishing force raises from 100 to 175 N, a non-monotonic increase of the average microhardness from 409 to 444 HV 0.05 takes place; burnishing with a load of 175 N forms a gradient-hardened layer with a thickness of 300...350 μm with the appearance of individual microfractures in the form of beadings and micro-cracks on the surface, the maximum hardening is caused by the formation of a highly dispersed surface layer of 30...40 μm thick with a structure of highly dispersed austenite and the corresponding activation of grain-boundary and dislocation strengthening mechanisms. The results can be used when selecting the diamond burnishing parameters of parts made of corrosion-resistant austenitic steels according to the criteria for obtaining low surface roughness without significant microfractures and effective strain hardening of the surface layer.

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Section: результаты и их обсуждениеunclassified

Section: Introductionunclassified

Normal force influence on smoothing and hardening of steel 03Cr16Ni15Mo3Ti1 surface layer during dry diamond burnishing with spherical indenter

Kuznetsov¹,

Makarov²,

Skorobogatov³

et al. 2022

Metal Working and Material Science

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“…Это обусловливает несколько больший уровень максимальной высоты профиля (Rt=5,85 мкм) у электрополированной поверхности (таблица 3). 03Х16Н14М3Т объясняется тем, что в процессе деформации при активизации дислокационного, субструктурного и зернограничного механизмов упрочнения γ-фаза претерпевает трансформацию от исходного крупнокристаллического до субмикро/нанокристаллического (после фрикционной обработки) строения [8]. Близкий уровень микротвердости был достигнут при фрикционной обработке стали Гадфильда [21].…”

Section: рис 1 диаграммы нагружения «нагрузка F -перемещение индентора H» при микроиндентировании поверхности стали 03х16н14м3т в исходноunclassified

“…Следовательно, основное влияние на коррозионную стойкость рассматриваемой аустенитной стали оказывает качество поверхности (шероховатость, наличие или отсутствие дефектов). Важно также отметить, что сильное диспергирование аустенитной структуры закаленной стали 03Х16Н14М3Т при фрикционной обработке [8], вопреки классической теории коррозии [15], не приводит к снижению ее коррозионной стойкости (рис. 2).…”

Section: обсуждение результатовunclassified

“…Polina A. Skorynina* 1,5 , junior researcher Aleksey V. Makarov 1,2,6 , doctor of technical sciences, corresponding member of RAS, Chief researcher, head of the department, head of the laboratory Vera V. Berezovskaya 3,7 , doctor of technical sciences, professor Evgeny A. Merkushkin 3,8 , candidate of technical sciences, assistant professor Nikolay M. Chekan 4,9 , PhD (Physics and Mathematics), Head of the Laboratory of Nanomaterials and Ion-Plasma Processes Abstract: Frictional treatment is an effective method to increase the strength and wear resistance of austenitic chromiumnickel steels. Previously, the authors identified that the high level of mechanical properties of metastable austenitic steels is achieved at the intensive development of deformation γ→α'-transformation.…”

Section: Effect Of Nanostructuring Frictional Treatment On Micromechanical and Corrosion Propertiesof Stable Austenitic Chromium-nickel Smentioning

confidence: 99%

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The Influence of Nanostructuring Friction Treatment on Micromechanical and Corrosive Characteristics of Stable Austenitic Chromium-Nickel Steel

Скорынина¹,

Makarov²,

Berezovskaya³

et al. 2021

FMT

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Friction treatment is an effective method to increase the strength and wear resistance of austenitic chromium-nickel steels. Previously, the authors identified that the high level of mechanical properties of metastable austenitic steels is achieved at the intensive development of deformation γ→α'-transformation. However, the presence of deformation martensite in the austenitic steel structure can negatively affect its anti-corrosion properties. The search for ways to improve the strength characteristics of stable austenitic chromium-nickel steel while maintaining high resistance to corrosion destruction is the up-to-date line of research. In this paper, to evaluate the mechanical properties of 03Cr16Ni14Mo3Ti steel in the hardened condition and after friction treatment, the authors applied the technique of measuring the hardness using the restored print and the method of instrumental micro-indentation, which allows recording the indenter loading and unloading diagrams. The corrosion failure resistance of steel was studied in general corrosion tests. The authors compared the corrosion rate of austenitic steel after grinding, electropolishing, and friction treatment; using scanning electron microscopy and optical profilometry, studied steel surfaces subjected to these treatments and determined their roughness. Nanostructuring friction treatment provides surface hardening of stable austenitic steel up to 570 HV 0.025. The study showed the high efficiency of friction treatment application to increase the strength characteristics and resistance of steel surface layer to elastic and plastic deformation. The authors identified that austenitic steel is characterized by similar corrosion rates km=(3.26–3.27)∙105 (g/cm2∙h) after electrolytic polishing (the structure of large-crystal austenite) and after frictional treatment (sub-micro/nanocrystalline austenite structure), while mechanical grinding leads to a twofold increase in the corrosion rate of 03Cr16Ni14Mo3Ti steel due to the occurrence of microcracks and metal breakouts on the polished surface. The research justified the determining role of the quality of the surface formed by various treatments (roughness, the presence of continuity defects) in ensuring the corrosion resistance of stainless steel.

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Effect of hardened surface layer obtained by frictional treatment on the contact endurance of the AISI 321 stainless steel under contact gigacycle fatigue tests

Savrai

Осинцева

2021

Materials Science and Engineering: A

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Effect of Friction Treatment on the Structure, Micromechanical and Tribological Properties of Austenitic Steel 03Kh16N14M3T

Cited by 10 publications

References 8 publications

Normal force influence on smoothing and hardening of steel 03Cr16Ni15Mo3Ti1 surface layer during dry diamond burnishing with spherical indenter

Normal force influence on smoothing and hardening of steel 03Cr16Ni15Mo3Ti1 surface layer during dry diamond burnishing with spherical indenter

The Influence of Nanostructuring Friction Treatment on Micromechanical and Corrosive Characteristics of Stable Austenitic Chromium-Nickel Steel

Effect of hardened surface layer obtained by frictional treatment on the contact endurance of the AISI 321 stainless steel under contact gigacycle fatigue tests

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