FEATURES OF NANOGOMETRY OF THE AMORPHOUS METALLIC ALLOYS SURFACE BRIEF OVERVIEW
Journal Title: Праці Наукового товариства ім. Шевченка - Year 2018, Vol 53, Issue
Abstract
Surface nanogeometry or roughness is an important characteristic of the amorphous alloys (AMA) and it determines their properties, in particular, wear resistance, contact rigidity, corrosion resistance, and other functional characteristics of the surface. The morphology of the AMA surface depends on many factors: the obtaing method of the amorphous alloys, their composition, or AMA modifications. So, for amorphous alloys there are differences in the surface topography between the contact and the outer side of the amorphous tape due to the thermodynamics of the production process, as well as the roughness of the drum surface and its defects. As a result of thermal annealing of amorphous alloys, surface roughness tends to change. Temperature annealing of amorphous tapes at temperatures below the crystallization temperature contributes to a significant improvement in their properties due to the fact that AMA is thermodynamically unstable and the temperature processing of such alloys is accompanied by structural relaxation aimed at achieving a more stable structure. Nanogeometry of the AMA surface determines their physical and chemical properties: mechanical, magnetic, catalytic, and etc. So, the corrosion resistance strongly depends on the quality of the material's surface. Therefore, in order to increase the corrosion resistance, the AMA should have a smoother surface. The magnetic and catalytic properties of the AMA significantly improve by proper heat treatment, because of controled the surface roughness and size of the nanofaze.
Authors and Affiliations
Mariia-Olena DANYLIAK, Lidiia BOICHYSHYN
Keywords
Related Articles
- EP ID EP543046
- DOI -
- Views 83
- Downloads 0
TREATMENT OF ACUTE PANCREATITIS: PROGRESSING FROM A DIAGNOSIS OF PANCREATITIS AND ITS FORMS TO ITS COMPLICATIONS
This article presents an analysis of the literature concerning approaches of the surgical treatment of acute pancreatitis. The in-depth study of the problem of acute pancreatitis and the development of management tactics...
INTRODUCTION TO THE INAUGURAL LECTURE OF PROFESSOR ADOLF BECK GIVEN AT THE PHYSIOLOGY DEPARTMENT OF UNIVERSITY OF LEMBERG-LW OW IN 1895
Exactly 120 years ago, Professor Adolf Beck (1863-1942), the founder o f Physiology Department of the Lviv National Medical University who stood at the cradle o f studies of the manifestation o f the electrical brain act...
Науковий портрет Адольф а Бека - ф ун датора львів ської наукової ш коли ф і зіологів (до 150-річчя від дня народ ж ення). Владислав Шимонович - визначний львів ський гістолог, керівник кафедри гістоло гії та ембріології Львівського університету (1897-1937).
Видання, призначені для науковців, сту дентів, лікарів, відображають науковий та життєвий спадок Адольфа Бека і Владисла ва Шимоновича, дають змогу сучасному чи тачеві отримати різнобічне уявлення про ці непересі...
THE TlInS2–ZnS SYSTEM AND THE PROPERTIES OF THE TlInS2:Zn2+ CRYSTAL
Interactions of components in the TlInS2–ZnS systems were investigated by physico-chemical analysis methods. The system is of the eutectic type with limited mutual solid solubility of the starting components: L + ...
«PROSTIR RADITY» CAMP AS AN EXAMPLE OF THE TREATMENT CONCEPT OF SECURE TRANSITIONAL HOLDING SPACE AND DIGRESSION IN CASE OF PTSD AND GAD
Our experience shows that neither clinical nor psychodynamic concepts are suffi cient quiet enough for explanation clinical manifestation both of generalized anxiety (GAD) andpostraumatic stress disorders (PTSD). Existin...