A study of bainitic nodular cast iron for grinding balls

Nanostructured steel industrialisation: Plausible reality

“…In line with those findings, Vuorinen et al [27,28] found that the performance of surface hardened steels can be matched by strong carbide free microstructures obtained by isothermal heat treatment of high Si steels, they also reported that at higher transformation temperatures and retained austenite content the wear rate increased, and results presented in Figure 4 for There are significantly fewer data available on the abrasive wear resistance of bainitic structures, and in particular of carbide free bainitic structures. Some results were found, comparing high Cr cast irons and austempered nodular cast irons [30,31]. The austempered nodular cast irons have a bainitic matrix obtained by isothermal transformation.…”

“…Some results were found, comparing high Cr cast irons and austempered nodular cast irons. 30,31 The austempered nodular cast irons have a bainitic matrix obtained by isothermal transformation. These exhibited abrasive wear resistance similar to that of the high Cr cast irons at a manufacturing cost significantly lower.…”

“…These exhibited abrasive wear resistance similar to that of the high Cr cast irons at a manufacturing cost significantly lower. 30 A study of the mechanisms of abrasive wear suggested that optimum resistance should be obtained for a combination of high strength and toughness. 31 Thus, HPA wear resistance has been studied in conjunction with Charpy-V impact toughness tests.…”

Understanding Mechanical Properties of Nano-Grained Bainitic Steels from Multiscale Structural Analysis

“…Regarding rotation-bending fatigue, nano-grained bainite appeared to exhibit similar or lower fatigue strength, compared to 100Cr6 in spite of somewhat lower UTS [13]. However, the presence of retained austenite might be playing an important role on fatigue [31]. Microstructural examination by EBSD below the fracture surface enabled the identification of the nature of boundaries deflecting the crack [32].…”

Microstructures and Mechanical Properties of Troostite Nodular Cast Iron by Heat Treatment

“…The nodular cast iron has been applied extensively to manufacture grinding balls and other mechanical parts due to its excellent mechanical properties [1]. In order to further improve the microstructural morphology and mechanical properties, the heat treatment technology is still under intensive exploitation [2][3][4][5], which focuses, however, mainly on bainitizing-austempering and sorbitizing-normalizing but rarely on troostitizing [6][7][8][9][10][11][12].…”