Failure micromechanisms of nodular cast iron
Journal Title: Production Engineering Archives - Year 2014, Vol 0, Issue 4
Abstract
The contribution deals with a comparison of the micro-mechanisms of failure of nodular cast irons at static, impact and fatigue stress. Several specimens of ferrite-pearlitic nodular cast irons with different content of ferrite in a matrix were used for metallographic analysis, mechanical tests and micro-fractographic analysis. Mechanical properties were found by static tensile test, impact bending test and fatigue tests. The micro-fractographic analysis was made with use of scanning electron microscope VEGA II LMU on fracture surfaces of the specimens fractured by these mechanical and fatigue tests. Fracture surfaces of analysed specimens are characteristic of mixed mode of fracture. Micro-mechanism of failure of nodular cast irons is dependent on the method of stress.
Authors and Affiliations
Alan Vaško, Mária Chalupová
Keywords
Related Articles
- EP ID EP166109
- DOI -
- Views 88
- Downloads 0
Failure micromechanisms of nodular cast iron
The contribution deals with a comparison of the micro-mechanisms of failure of nodular cast irons at static, impact and fatigue stress. Several specimens of ferrite-pearlitic nodular cast irons with different content of...
Cost of product functions using analysis of value
The value of use is a specific notion but of a great generality that makes the product be regarded as a complex system that transforms itself in time, thus undergoing evolution. Therefore, the product is important not in...
Microstructural evaluation of the lacquered layer quality after corrosion load
Surface pre-treatment is one of the most important steps before applying the final surface treatment. These pre-treatments, like phosphating, alkaline degreasing, pickling in acids, is used to remove impurities from the...
Chip breaking phenomenon during cutting steel and polymer materials
Research in 60s and 70s started to deal with the shape of the chip characterization. It was possible then to do a limited study by means of measuring tool park. During such a study, different models for chip formation be...
Keeping Higher Education Aligned with the Requirements and Expectations of the Knowledge-Based Economy
Paper describes the procedure for developing academic programs which are properly aligned to the requirements of the knowledge-based economy. The paper also addresses the continuous quality improvement (CQI) process with...