학술논문
내부 경화형 구상흑연주철 롤 동체와 넥의 미세조직과 경도에 미치는 탄소 영향
Effect of Carbon on the Micro Structure and Hardness of Internally Hardened Ductile Cast Iron Roll
Effect of Carbon on the Micro Structure and Hardness of Internally Hardened Ductile Cast Iron Roll
Document Type
Article
Author
Source
한국산업융합학회 논문집 / Journal of Korean Society of Industry Convergence. Jan 01, 2023 26(1):79
Subject
Language
Korean
English
English
ISSN
1226-833x
Abstract
This study was investigated the effect of carbon on the micro-structure and hardness of ductile cast iron roll with internal curing capacity. Spheroidal graphite existed at roll body with rapid cooling, but granular graphite existed at roll neck with slow cooling. The volume fraction of graphite increased at roll body with rapid cooling, That of roll neck with slow cooling decreased, but graphite size increased. The volume fraction of cementite decreased, but volume fraction increased. The cementite size was larger at roll neck than roll body. The hardness was decreased at roll body and roll neck due to volume fraction of cementite. The hardness of roll body was higher than roll neck.