CAJ | 학술논문

文中采用等离子束合金化技术对半钢轧辊进行强化研究，使用金相显微镜、环境扫描电镜、显微硬度计测试了合金化层的显微组织和硬度。室温下合金化层组织主要由奥氏体和共晶碳化物组成，合金化层经过600℃保温4 h处理后，组织主要为回火马氏体和残余奥氏体。显微硬度测试表明合金化层的室温平均硬度为HV0.2450，600℃4 h回火后合金化层平均硬度为HV0.2550；经过现场装机轧制2个班次（16 h）对比试验表明，合金化后的半钢轧辊综合性能获得提高。
문중채용등리자속합금화기술대반강알곤진행강화연구，사용금상현미경、배경소묘전경、현미경도계측시료합금화층적현미조직화경도。실온하합금화층조직주요유오씨체화공정탄화물조성，합금화층경과600℃보온4 h처리후，조직주요위회화마씨체화잔여오씨체。현미경도측시표명합금화층적실온평균경도위HV0.2450，600℃4 h회화후합금화층평균경도위HV0.2550；경과현장장궤알제2개반차（16 h）대비시험표명，합금화후적반강알곤종합성능획득제고。
The plasma beam surface alloying technology was used to strengthen the semi-steel roll. The microstructure was investigated by using the optical microscope, scanning electron microscope and microhardness tester. The microstructure of the alloyed layer at room temperature is austenite and eutectic carbides, the average hardness of the alloyed layer is HV0.2450 while the average hardness is HV0.2550 and the microstructure is tempered martensite and austenite after heating at 600 ℃for 4 h. The field-installed rolling test for two trips(16 h)shows that the performance of the surface alloyed semi-steel roll is improved.