Tribological properties of AC44200 based composites strenghead with AlB2BOB3 Bparticles
Journal Title: Archiwum Odlewnictwa - Year 2011, Vol 11, Issue 2
Abstract
The paper presents a research on abrasion resistance of aluminium-based composites consisting of EN AC-44200 matrix reinforced with AlB2BOB3B particles. The examinations revealed that wear intensity of the composites decreased with increasing volume fraction of the particles. Much more intensive abrasive wear was observed on the first kilometre in comparison to the wear on the subsequent distances, i.e. from 1 to 3.5 km and from 3.5 to 8.5 km of the wear distance. Microscopic examinations permitted determining the way and type of wear occurring in the examined materials. In the case of the AC-44200 matrix, typical adhesive wear is observed. In composite materials however, abrasive wear prevails over adhesive wear. Increased volume fraction of AlB2BOB3B particles in composite materials results in increasing friction factor in average by 0.250 per each 10 vol.%. Wear of the cast-iron counterspecimen is also strongly dependent on volume fraction of the reinforcing particles. The counterspecimen demonstrates the largest wear when working in contact with a composite material containing 40 vol.% of AlB2BOB3B particles.
Authors and Affiliations
A. Kurzawa, E. Grodzka, J. W. Kaczmar
Keywords
Related Articles
- EP ID EP72434
- DOI -
- Views 82
- Downloads 0
The analysis of carbon attendance in copper alloys as reason of gas porosity
In the work show, that opinions the leaning on it dissolubilities of carbon can be recognized (and only in approximation) only for copper about large purity. They do not concern it her mostly multiple alloys, at which th...
Production of Steel Casts in Two-Layer Moulds with Alkaline Binders Part 1. Backing sand with the alkaline inorganic binder RUDAL
Steel casts in Z.N. POMET were produced in moulds made of the moulding sand Floster. This sand did not have good knocking out properties, required a significant binder addition (4.5-5.0 parts by weight), and the casting...
The structure of connection of the AlSi5 – HS6-5-2 compound casting obtained by alphinising
The paper presents results of the analysis of the alphinising coat connection structure of the AlSi5 silumin – high speed steel HS6-5-2 compound casting. The alphinising coat was made in the AlSi5 silumin bath with tempe...
Effect of alloying elements on branching of primary austenite dendrites in Ni-Mn-Cu cast iron
Within the research, determined were direction and intensity of influence of individual alloying elements on branching degree of primary austenite dendrites in austenitic cast iron Ni-Mn-Cu. 30 cast shafts dia. 20 mm wer...
Application of calorimetry in evaluation of phase transformations in the selected hypoeutectic silumins
The investigations of phase transformations described in this study were carried out on hypoeutectic alloys from the Al-Si during heating and cooling. The determination and analysis of characteristic temperature values f...