The Processing Window for Austempering Ductile Iron
نویسندگان
چکیده
منابع مشابه
Influence of Composition and Austempering Temperature on Machinability of Austempered Ductile Iron
Present investigations involve a systematic study on the machinability of austempered ductile irons (ADI) developed from four commercially viable ductile irons alloyed with different contents of 0, 0.1, 0.3 and 0.6 wt.% of Ni. The influence of Ni content, amount of retained austenite and hardness of ADI on machining behavior has been conducted systematically. Austempering heat treatment was car...
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Prediction of service life of ductile iron pipe is carried out using the information on pipe condition, backfill/soil properties, and corrosion rates, as well as historical failure records. Among the factors that affect pipe condition, external pitting corrosion is a prominent variable contributing to the disintegrity of the pipe. A pipe scanner equipped with a laser displacement sensor was use...
متن کاملThe Bainitic Phase Transformation in Aluminium Containing Ductile Irons after Short Time of Austempering
The influence of aluminium on the microstructure of austempered ductile cast iron (ADI) has been studied. A number of irons of different compositions have been made by green sand casting and gravity die casting of appropriate design to provide the experimental materials. Austenitising was carried out at different temperatures and holding times for a variety of experimental irons to achieve suff...
متن کاملStructural and Mechanical Characterization of Austempered Cu - Sn Ductile Iron Alloys
The effect of heat treatment and alloying elements of copper and tin on the microstructure and mechanical properties of austempered ductile cast iron alloys is investigated. The austenitizing temperature of 890°C, the isothermal transformation (austempering) temperatures of 285, 335 and 375°C, and austempering times of 15, 30, 75 and 150 minutes are studied. The alloying elements of copper and ...
متن کاملLong-Term Performance of Ductile Iron Pipes
Evaluate the impact on pipe performance and life expectancy of the transition (1991) from wall thickness class to pressure class designations in the manufacture and design standards for ductile iron pipes. Study and compare historical failure rates of ductile iron pipes in a geographically diverse group of water utilities from North America and Australia. Evaluate reliability and capabili...
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ژورنال
عنوان ژورنال: Materials Transactions, JIM
سال: 1999
ISSN: 0916-1821,2432-471X
DOI: 10.2320/matertrans1989.40.82