钢铁钒钛
鋼鐵釩鈦
강철범태
2009年
3期
44-49
,共6页
吴雨晨%李俊国%闫小林%李守章%曾亚南
吳雨晨%李俊國%閆小林%李守章%曾亞南
오우신%리준국%염소림%리수장%증아남
X70管线钢%铸坯%夹杂物%体积率
X70管線鋼%鑄坯%夾雜物%體積率
X70관선강%주배%협잡물%체적솔
X70 pipeline steel%cast slab%inclusion%volume ratio
利用大样电解、金相观测、扫描电镜(SEM)和电子探针(EPMA)等手段,对X70管线钢铸坯中夹杂物的数量、粒径、形貌及组分进行了研究.结果表明:X70管线钢铸坯中夹杂物数量较多,粒径较大,且多为复合夹杂.针对大型夹杂物中硫化物、氧化物、硅铝酸盐和钙铝酸盐复合夹杂的特点,分析了铸坯中夹杂物的主要来源.
利用大樣電解、金相觀測、掃描電鏡(SEM)和電子探針(EPMA)等手段,對X70管線鋼鑄坯中夾雜物的數量、粒徑、形貌及組分進行瞭研究.結果錶明:X70管線鋼鑄坯中夾雜物數量較多,粒徑較大,且多為複閤夾雜.針對大型夾雜物中硫化物、氧化物、硅鋁痠鹽和鈣鋁痠鹽複閤夾雜的特點,分析瞭鑄坯中夾雜物的主要來源.
이용대양전해、금상관측、소묘전경(SEM)화전자탐침(EPMA)등수단,대X70관선강주배중협잡물적수량、립경、형모급조분진행료연구.결과표명:X70관선강주배중협잡물수량교다,립경교대,차다위복합협잡.침대대형협잡물중류화물、양화물、규려산염화개려산염복합협잡적특점,분석료주배중협잡물적주요래원.
Utilizing the methods of sample-electrolysing, metallographic observation, SEM and EPMA, the quantity, dimension, morphologies and composition of non-metallic inclusions in X70 pipeline steel cast slab were investigated. It was suggested that there were larger amount of inclusions with larger diam-eter in the cast slab. Most of these inclusions were complex, such as sulfide, oxide, silicon aluminates and calcium aluminates inclusions. According to the characteristics of inclusions in the east slab, the ma-jor sources of different inclusions were analyzed and explored.
