ISSN:1003-8620
CN:42-1243/TF
Governed by: CITIC Pacific Special Steel Group Co., LTD
Sponsored by: Daye Special Steel Co., LTD.
Special Steel ›› 2007, Vol. 28 ›› Issue (3): 30-31.
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Yang Jichun,Liu Xiao,Gao Xuezhong ,Cao Xiong
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杨吉春,刘晓,高学中,曹雄
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Abstract: Martensite stainless steel 2Cr13(0. 19C,12.88Cr)was melted by a vacuum non-consumable arc fumace and 0~0. 18% Ce was added in casting ingot.The morphology and ingredient of inclusion in steel was observed and analyzed by using optical and scanning electron microscope and X-ray energy dispersive spectrometer.Results showed that with no-adding rare-earth element Ce the inclusion in steel was irregular MnS,Cr2S3 and FeS compound inclusion with dimension 19.33 μm,with added 0. 14% Ce the inclusion in steel was compound rare-earth(RE)inclusion(inner RE sulphide and outside RE silicate)approximated ellipsoid with dimension 18.64 μm and with added 0. 16%~0. 18% Ce the inclu sion in steel was ellipsoid or spheroid RE silicate with dimension7.69~8.15 μm.
Key words: Rare Earth Element, Stainless Steel 2Cr13, Modification of Inclusion
摘要: 2Cr13(0.19%C、12.88%Cr)马氏体不锈钢由非自耗真空电弧炉冶炼,在铸模加入0~0.18%的Ce。用光学和扫描电镜(SEM)、X-射线能谱仪观察和分析钢中夹杂物形貌和成分。结果表明,未加稀土元素Ce时,钢中夹杂物尺寸为19.33μm的不规则MnS、Cr2S3和FeS复合夹杂物;加入0.14%Ce,钢中夹杂物为近似椭球状稀土夹杂物,尺寸18.64μm;复合夹杂物内部为稀土硫化物,外部为稀土硅酸盐;加入0.16%~0.18%Ce时,钢中夹杂物为椭球或球形稀土硅酸盐,尺寸为7.69~8.15μm。
关键词: 稀土, 2Cr13不锈钢, 夹杂物变性
Yang Jichun, Liu Xiao, Gao Xuezhong , Cao Xiong. Effect of Rare-Earth Element Ce on Modification of Inclusion in Stainless Steel 2Cr13[J]. Special Steel, 2007, 28(3): 30-31.
杨吉春, 刘晓, 高学中, 曹雄. 稀土元素Ce对2Cr13不锈钢中夹杂物变性的影响[J]. 特殊钢, 2007, 28(3): 30-31.
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