There is a need for cast irons with combined combination of properties in modern conditions. Such can be provided by ductile iron nodular and vermicular graphite, which essentially hybrid terms microstructure. The article found that graphite its mechanical rational alternative to malleable iron, namely the grade KCh45-6 (GOST 1215-79). Also, ratio nodular/vermicular (70…95/5…30%) was determined...

This paper presents an overview of the current knowledge concerning SiMo ductile cast iron begins by describing standard type before proceding to description its microstructures. The then chemical composition and significant influence individual elements on technological mechanical properties. research section focuses addition Si Mo matrix gray iron. After casting, stepped samples were carried ...

New developments with bainite have resulted in a steel with an ultimate tensile strength of 2500 MPa, a hardness of 600-670 HV and a toughness in excess of 30-40 MPa m [1]. The novel microstructure is generated in a high carbon (0.98 wt.%) high silicon (1.46 wt.%) steel austenitized for 15 min. at 1000 oC, and then isothermally transformed at temperatures of ∼200 oC. Iron does not diffuse durin...

The influence of the austempering temperatures on microstructure and mechanical properties austempered ductile cast iron (ADI) was investigated. ADI is nodular graphite iron, which owing to higher strength elongation, exceeds conventional spheroidal iron. Such a combination achieved by heat treatment through austenitization, followed at different temperatures. austenitization conditions were sa...