Investigation of thermochemical boriding effect on wear behavior of a GGG 50 quality as-cast ductile iron

Abstract

Investigation of thermochemical boriding effect on wear behavior of a GGG 50 quality as-cast ductile iron Harun Mindivan Article information:To cite this document: Harun Mindivan , (2016),"Investigation of thermochemical boriding effect on wear behavior of a GGG 50 quality as-cast ductile iron", Industrial Lubrication and Tribology, Vol. 68 Iss 4 pp. -Permanent link to this document: http://dx. Access to this document was granted through an Emerald subscription provided by emerald-srm:381648 [] For AuthorsIf you would like to write for this, or any other Emerald publication, then please use our Emerald for Authors service information about how to choose which publication to write for and submission guidelines are available for all. Please visit www.emeraldinsight.com/authors for more information. About Emerald www.emeraldinsight.comEmerald is a global publisher linking research and practice to the benefit of society. The company manages a portfolio of more than 290 journals and over 2,350 books and book series volumes, as well as providing an extensive range of online products and additional customer resources and services.Emerald is both COUNTER 4 and TRANSFER compliant. The organization is a partner of the Committee on Publication Ethics (COPE) and also works with Portico and the LOCKSS initiative for digital archive preservation. ABSTRACTIn this study, GGG 50 quality as-cast ductile iron samples were pack borided in Ekabor II powder at 900 °C for 3 h, followed by furnace cooling. Structural characterization was made by an Optical Microscopy (OM). Mechanical characterization was made by hardness and pin on disc wear test. Pin on disc test was conducted on a 240-mesh Al 2 O 3 abrasive paper at various temperatures in between 25 and 450 °C. Room temperature abrasive wear resistance of the borided ductile iron increased with increasing its surface hardness. High temperature abrasive wear resistances of the borided ductile iron linearly decreased with increasing test temperature. However, the untreated ductile iron exhibited relatively high resistance to abrasion at a temperature of 150 °C. Above 150 °C, the untreated ductile iron exhibited similar abrasive wear performance as compared to the borided ductile iron.

A Diffusion Model for the Fe2B Layers Formed on a Ductile Cast Iron

“…Ductile iron is widely used in the automotive industry and in manufacturing of machine parts because of its excellent mechanical properties, castability, machinability, and low production costs [1,4]. However, it has a disadvantage of a low abrasive wear resistance.…”