In the current investigation, a vertically continuous casting technique was used to produce ductile iron pipe. The austempered, and tribological behavior of austempered (ADI) examined under various service conditions. finding demonstrated that ADI’s behaviors were significantly affected by normal loads sliding speeds. Spheroidal graphite preferential be transferred from matrix tribosurface in A...

Abstract The structural stability of ausferrite in thin-walled Austempered Ductile Iron (ADI) castings with 5 mm wall thickness is compared to a reference casting 25 thickness. and were first austenitized between 850 925 °C, then austempered 250 380 °C. X-ray diffraction (XRD) investigations changing temperature performed − 260 up + 450 °C investigate the change phase fraction, lattice paramete...

In this study, the effect of austempering times on microstructures and mechanical properties dual-matrix structure austempered ductile iron (DMS-ADI) was investigated. With aim, unalloyed as-cast tensile samples were austenitized at 810 °C for 30 min to intercritical austenitizing followed by 350°C various (45 180 min). Experimental results showed that structures consisting proeutectoid ferrite...

Abstract Austempered ductile iron (ADI) is a difficult material with severe tool wear during machining, due to the high cutting temperatures in zone. In this paper, mathematical model of temperature developed based on turning experiment, and impact speed, feeding depth ADI studied. When speed feed increase, large amount heat cannot be dissipated, zone increases. increases, increase dissipation ...

Austempered ductile iron (ADI) is a new engineering material type which continue receiving increased attention in research and industry. Extensive conducted so far has demonstrated that ADI excellent property combination such as high strength-weight ratio, ductility toughness, good fatigue strength, damping properties wear resistance. As result of to their exceptional mechanical mix, fabricatio...