13%Mn-2%Cr鋳鋼の硬さ，衝撃値及び耐摩耗性に及ぼすほう素の影響

概要

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High manganese cast steel shows high toughness and high wear resistance values after work hardening, but it shows rather low hardness and poor wear resistance before work hardening. In order to get higher hardness of high manganese cast steel without work hardening, up to 0.28% boron was added to 13%Mn—2%Cr cast steel and the effect of boron on the mechanical properties and abrasive wear resistance of the steel were investigated. The hardness of high manganese cast steel was increased but the toughness of the steel was lowered by addition of boron and heat treatment after water toughening. Improvement of wear resistance of high manganese cast steel can be expected by selecting proper boron content and heat treatment in relation to the wear condition.
日本鋳造工学会の論文