Topic
Pearlite
About: Pearlite is a research topic. Over the lifetime, 6028 publications have been published within this topic receiving 65695 citations.
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TL;DR: In this paper, Abaqus FEA software is used for numerical analysis of temperature field and phase transformations in analyzed process, where models of the distribution of movable heat source, kinetics of phase transformation in solid state as well as thermal and structural strain are implemented.
27 citations
TL;DR: The microstucture, hardness, and tensile properties of 2.25 Cr-1 Mo steel with 0.009, 0.030, and 0.135 wt % C were determined on steels in the annealed, normalized, and normalized andtempered conditions as discussed by the authors.
27 citations
TL;DR: In this article, the eddy current method has been used for estimation of the pearlite amount in ductile cast irons and regression analysis has showed good assessment of the matrix structure of cast IRons having different chemical compositions as well as graphite particle size and count.
Abstract: The eddy current method has been used for estimation of the pearlite amount in ductile cast irons. Regression analysis has showed good assessment of the matrix structure of cast irons having different chemical compositions as well as graphite particle size and count by means of the eddy current method. Pearlite content of tested cast irons was shown to have paramount effect on the eddy current probe response from them and predictability of pearlite amount improves for specimens with similar composition or graphite shape.
27 citations
TL;DR: In this article, the effect of copper on the processes of structure formation in cast iron is analyzed with the use of known and newly plotted fragments (sections and projections) of the phase diagram of the Fe-C-Cu system.
Abstract: The Fe – C – Cu system has great practical importance due to the use of copper in some kinds of steel and cast iron. However, the content of copper in the known alloys is not always optimum from the standpoint of combination with other alloying elements and carbon. In this connection, the effect of copper on the processes of structure formation in cast iron is analyzed with the use of known and newly plotted fragments (sections and projections) of the phase diagram of the Fe – C – Cu system. Specifically, the solubility of copper is determined in the main phases and structural components (ferrite, austenite, pearlite). The conditions of formation of the copper-bearing phase are investigated.
27 citations
TL;DR: In this paper, measurements of 0·2% proof stress, ultimate tensile strength, elongation, and impact energy are presented for low Mn, Cu, Ni-Cu irons for various austempering conditions and related quantitatively to microstructural features.
Abstract: Measurements of 0·2% proof stress, ultimate tensile strength, elongation, and impact energy are presented for low Mn, Cu and low Mn, Ni–Cu irons for various austempering conditions and related quantitatively to microstructural features. It is shown that the formation of more than 20% pearlite in the austempered structure causes an unacceptable reduction in mechanical properties. The pearlite affects ductility in upper bainitic irons and strength in lower bainitic irons. The 0·2% proof stress is shown to be dependent on the bainitic ferrite particle size and a Hall–Petch relationship exists between proof stress and particle size. The impact energy of irons austempered within the processing window is shown to increase with increasing volume fraction of retained austenite and then to reach a saturation level. The saturation level is discussed in terms of the occurrence of a transformation induced plasticity mechanism.MST/1900
27 citations