Ductile iron
Degenerated Graphite Growth in Ductile Iron
... Keywords: ductile iron, trace elements, graphite morphology, graphite degeneracy ...eutectic ductile iron melts were prepared to which minute amounts of lead and of both lead and cerium were ...
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Wear property of ductile iron locally reinforced with Cr-containing steel inserts
... To cite this version : Martinez Celis, Mayerling and Valle, Nathalie and Lacaze, Jacques and Thorbjornsson, Ingolfur and Johannesson, Birgir and Thorgrimsson, Jon Thor and Pogornik, Bojan and Vizintin, Joze. Wear ...
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Characterization of external corrosion pits in ductile iron pipes
... The National Research Council of Canada (NRC), with funding from the Water Research Foundation (WaterRF), undertook a research project to investigate the long term performance of ductile iron (DI) water ...
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Measuring corrosion levels of ductile iron pipes using scanned images
... Measuring corrosion levels of ductile iron pipes using scanned images.. Mak, H.; Wong, B...[r] ...
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Measuring corrosion levels of ductile iron pipes using scanned images
... characteristics of these specific sensors. So a series of tests have been set up to evaluate the characteristics of the sensors. Initial tests include leaving these sensors in controlled environments beside ...
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Performance of ductile iron pipes. I : characterization of external corrosion patterns
... Figure 5. Statistical properties of pit-depth maxima (Calgary) with 1 and 2 mm threshold depth Similar results (not shown here) were obtained for the pit data in Kansas City, Louisville and St. Louis. It appears that ...
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Wear property of ductile iron locally reinforced with Cr-containing steel inserts
... To cite this version : Martinez Celis, Mayerling and Valle, Nathalie and Lacaze, Jacques and Thorbjornsson, Ingolfur and Johannesson, Birgir and Thorgrimsson, Jon Thor and Pogornik, Bojan and Vizintin, Joze. Wear ...
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Performance of ductile iron pipes. II : sampling scheme and inferring the pipe condition
... A companion paper (Kleiner et al. 2013) describes the exhumation of varying lengths of ductile iron pipes in four North American water utilities. The exhumed pipes were cut into sections, sandblasted and ...
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Sampling and condition assessment of ductile iron pipes
... Keywords Corrosion pits, condition assessment, corrosion pit geometry, probability distribution, sampling. 1. INTRODUCTION The National Research Council of Canada (NRC) and the Water Research Foundation (WRF – formerly ...
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Fuzzy expert system to assess corrosion of cast/ductile iron pipes from backfill properties
... Water utilities use different criteria to assess the structural deterioration of pipes, among which the principal ones are breakage frequency or the growth rate of corrosion pits. The predominant deterioration mechanism ...
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Protecting ductile iron water mains: what protection method works best for what soil condition?
... Shymko, R. 1996. The status of the cathodic protection program to minimise the effects of corrosion of existing ductile iron water mains within the Region of Durham, January. Sletmoan, R. 2000. Personal ...
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Processing laser range image for the investigation on the long-term performance of ductile iron pipe
... 1 Introduction Ductile iron (DI) became the pipe material of choice for many municipalities from the late 1960s. The oldest DI pipes are approaching fifty years of age. However, DI pipe condition is not ...
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Effect of carbon equivalent on graphite formation in heavy-section ductile iron parts
... Abstract. The influence of post-inoculation and of cerium and antimony additions on the solidification process and on the formation of chunky graphite in ductile iron heavy-section parts have been studied ...
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Microstructure of as cast reinforced ductile iron
... of ductile iron with ...in ductile cast iron parts, and reported that austenitic steel gives much better results because of its lower melting point and a better surface ...
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Degenerated Graphite Growth in Ductile Iron
... There are different investigations about critical amounts of trace elements affecting graphite morphology in ductile cast iron as reviewed by Reynaud [3]. Buhr [2] reported that already small amounts of ...
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Microstructure of as cast reinforced ductile iron
... reinforcement, Ductile cast iron, Chromium carbides Introduction Ductile irons are essentially ternary Fe–C–Si alloys with carbon and silicon contents in the ranges 3?4–3?9 and 1?8–2?8 wt-% ...In ...
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Microstructural Characterization of Graphite Spheroids in Ductile Iron
... radial. They proposed that multiple twinning can produce curved crystals, i.e. that spheroidal growth could proceed continuously from spheroidal nuclei. It has indeed been observed repeatedly (e.g. by Liu et al. [ 8 ]) ...
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Microstructural Characterization of Graphite Spheroids in Ductile Iron
... Abstract The present work brings new insights by transmission electron microscopy allowing disregarding or supporting some of the models proposed for spheroidal growth of graphite in cast irons. Nodules consist of ...
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Damage Analysis of a Ferritic SiMo Ductile Cast Iron Submitted to Tension and Compression Loadings in Temperature
... interpretation is also proposed in order to understand the mechanical behavior and the damage mechanisms of the ductile iron with temperature. 4.1. Damage Evolution with Temperature during Monotonous ...
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Active Mg Estimation Using Thermal Analysis: A Rapid Method to Control Nodularity in Ductile Cast Iron Production
... in Ductile Cast Iron Production RAMON SUA´REZ, JON SERTUCHA, PELLO LARRAN˜AGA, and JACQUES LACAZE Appropriate nodularity in ductile iron castings is strongly associated with the presence of ...
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