Results 141 to 150 of about 374 (167)
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Effects of austempering time on the microstructure and properties of austempered ductile iron
Metallurgical Research & Technology, 2022The effects of austempering time on the structure and properties of high-strength austempered ductile iron were studied by using optical microscopy (OM), X-ray diffractometer (XRD) and scanning electron microscope (SEM). The results show that the matrix structure of austempered ductile iron (ADI) consists of acicular ferrite and retained austenite ...
Zhiwen Shi +5 more
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Tensile properties of copper alloyed austempered ductile iron: Effect of austempering parameters
Journal of Materials Engineering and Performance, 2004A ductile iron containing 0.6% copper as the main alloying element was austenitized at 850 °C for 120 min and was subsequently austempered for 60 min at austempering temperatures of 270, 330, and 380 °C. The samples were also austempered at 330 °C for austempering times of 30–150 min.
U. Batra, S. Ray, S. R. Prabhakar
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Study of Austempered Ductile Iron (ADI) on Varying Austempering Temperatures
2018Austempered ductile iron (ADI) proven itself as a significant manufacturing material due to its remarkable properties like withstanding high fatigue behavior, fracture toughness, wear resistance, ductility, etc. This paper reports the experimental results obtained on subjecting ADI specimens to thermal treatment, i.e., austempering and austenitization.
Gurmeet Singh +2 more
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Influence of stepped austempering process on the fracture toughness of austempered ductile iron
Metallurgical and Materials Transactions A, 2001This research studied the effect of a two-step austempering process on the fracture toughness of ductile iron and compared it to that of the conventional upper- and lower-ausferrite austempered ductile irons (ADIs). The results showed that such a two-step austempering heat-treatment process yielded a fracture-toughness value equivalent to that of the ...
Cheng-Hsun Hsu, Tao-Liang Chuang
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Alloy Digest, 1986
Abstract AUSTEMPERED DUCTILE IRON has high strength with excellent toughness and ductility. Its strength is twice that of conventional ductile irons, comparable to heat-treated wrought steels. Composition is balanced to provide foundry compatibility, minimal segregation and good response to austempering.
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Abstract AUSTEMPERED DUCTILE IRON has high strength with excellent toughness and ductility. Its strength is twice that of conventional ductile irons, comparable to heat-treated wrought steels. Composition is balanced to provide foundry compatibility, minimal segregation and good response to austempering.
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Mechanical Characterization of Austempered Ductile Iron Obtained by Two Step Austempering Process
Transactions of the Indian Institute of Metals, 2017Austempered ductile iron (ADI) is known to have a good combination of mechanical properties due its unique ausferrite microstructure. The strength of ADI is mainly a function of the austempering temperature and the stability of ausferrite matrix. To increase the stability of the ausferritic matrix, two stage austempering processes was developed. During
Vinayak Dakre +3 more
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Advanced Materials Research, 2012
This study focused on tensile strength properties inclusive of ultimate tensile strength and elongation values of niobium alloyed ductile iron in as cast and austempered conditions. The tensile specimens were machined according to TS 138 EN 10002-1 standard.
Bulan Abdullah +5 more
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This study focused on tensile strength properties inclusive of ultimate tensile strength and elongation values of niobium alloyed ductile iron in as cast and austempered conditions. The tensile specimens were machined according to TS 138 EN 10002-1 standard.
Bulan Abdullah +5 more
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2013
Abstract This article provides a detailed discussion on the factors involved in the selection of steels for austempering, including section thickness limitations of steel parts and modifications of austempering practice. The selection of steel for an austempered component is based on the processing characteristics of the heat treating ...
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Abstract This article provides a detailed discussion on the factors involved in the selection of steels for austempering, including section thickness limitations of steel parts and modifications of austempering practice. The selection of steel for an austempered component is based on the processing characteristics of the heat treating ...
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Austempered ductile irons-gears
Materials & Design, 1985Abstract Both the technical and commercial competitive nature of austempered ductile irons for manufacturing gears are described and some of the current applications of these gears are outlined.
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Materials & Design, 2008
Abstract Austempered ductile iron (ADI) has found enormous applications in recent years due to its high strength and hardness, coupled with substantial ductility and toughness. The high strength and hardness of ADI have caused many researchers and engineers to doubt the machinability of this material.
IŞIK, YAHYA, Cakir, MUSTAFA CEMAL
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Abstract Austempered ductile iron (ADI) has found enormous applications in recent years due to its high strength and hardness, coupled with substantial ductility and toughness. The high strength and hardness of ADI have caused many researchers and engineers to doubt the machinability of this material.
IŞIK, YAHYA, Cakir, MUSTAFA CEMAL
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