钙镁复合处理20CrMnTi钢中硫化物夹杂

doi:10.13228/j.boyuan.issn0449-749x.20170187

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Abstract The resulphurized 20CrMnTi steel is with good machinability， but the mechanical property is poor. Ca-Mg duplex treatment can reduce the harm of sulphide in this steel. The effect of Ca-Mg duplex treatment with different proportions on resulfurized 20CrMnTi steel was studied through high temperature experiment and SEM-EDS analysis. The results show that the duplex treatment can modify the II type sulfide inclusion from strip and chain shapes to spherical shape or wrap on oxide inclusion core. The average aspect ratio and diameter decrease dominantly after treatment. During the duplex treatment， Ca mainly reacts with S in steel， which strengthens the spheroidization of sulfide inclusion， and Mg mainly reacts with O in steel， which generates diffusing oxide core of small size. The inclusion types are MnS-CaS-MgO（-Al2O3-CaO）after treatment.If adding superfluous Mg， MgS will show up insulfide inclusion and if adding superfluous Ca， CaO will show up in oxide inclusion. The Mg in the treatment strengthens the modification effect of Ca， which means that less Ca is needed to reach the same modification， and duplex treatment is better than Ca treatment.

Received: 21 April 2017 Published: 21 December 2017

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	Articles by authors
	LIU Wei
	YANG Shu-Feng
	LI Jing-She
	LI Ji-Kang
	ZHANG Shuo

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LIU Wei,YANG Shu-Feng,LI Jing-She等. Modification of sulphide inclusions in 20CrMnTi steel by calcium-magnesium treatment[J]. Iron and Steel, 2017, 52(12): 21-27.

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http://www.chinamet.cn/Jweb_gt/EN/10.13228/j.boyuan.issn0449-749x.20170187 OR http://www.chinamet.cn/Jweb_gt/EN/Y2017/V52/I12/21

[1]	张海霞, 梁娜, 翟正龙, 等. 易切削钢中硫化物形态的研究[J]. 冶金丛刊, 2011(6):49-51.
[1]	张海霞, 梁娜, 翟正龙, 等. 易切削钢中硫化物形态的研究[J]. 冶金丛刊, 2011(6):49-51.
[2]	申景霞, 郑艳, 张海霞, 等. 含硫齿轮钢20CrMnTiH中硫化物对切削性能的影响[J]. 特殊钢, 2012,33(3):47-49.
[2]	申景霞, 郑艳, 张海霞, 等. 含硫齿轮钢20CrMnTiH中硫化物对切削性能的影响[J]. 特殊钢, 2012,33(3):47-49.
[3]	张彩军, 蔡开科, 袁伟霞. 管线钢硫化物夹杂及钙处理效果研究[J]. 钢铁, 2006,41(8):31-33.
[3]	张彩军, 蔡开科, 袁伟霞. 管线钢硫化物夹杂及钙处理效果研究[J]. 钢铁, 2006,41(8):31-33.
[4]	杨文, 杨小刚, 张立峰, 等. 钢中MnS夹杂物控制综述[J]. 炼钢, 2013,29(6):71-78.
[4]	杨文, 杨小刚, 张立峰, 等. 钢中MnS夹杂物控制综述[J]. 炼钢, 2013,29(6):71-78.
[5]	Zhang X, Zhang L, Yang W, et al. Characterization of the Three-Dimensional Morphology and Formation Mechanism of Inclusions in Linepipe Steels[J]. Metallurgical and Materials Transactions B, 2016:1-12.
[5]	Zhang X, Zhang L, Yang W, et al. Characterization of the Three-Dimensional Morphology and Formation Mechanism of Inclusions in Linepipe Steels[J]. Metallurgical and Materials Transactions B, 2016:1-12.
[6]	Verma N, Pistorius P C, Fruehan R J, et al. Transient inclusion evolution during modification of alumina inclusions by calcium in liquid steel: Part I. Background, experimental techniques and analysis methods[J]. Metallurgical and Materials Transactions B, 2011,42(4):711-719.
[6]	Verma N, Pistorius P C, Fruehan R J, et al. Transient inclusion evolution during modification of alumina inclusions by calcium in liquid steel: Part I. Background, experimental techniques and analysis methods[J]. Metallurgical and Materials Transactions B, 2011,42(4):711-719.
[7]	Verma N, Pistorius P C, Fruehan R J, et al. Transient inclusion evolution during modification of alumina inclusions by calcium in liquid steel: Part II. Results and discussion[J]. Metallurgical and Materials Transactions B, 2011,42(4):720-729.
[7]	Verma N, Pistorius P C, Fruehan R J, et al. Transient inclusion evolution during modification of alumina inclusions by calcium in liquid steel: Part II. Results and discussion[J]. Metallurgical and Materials Transactions B, 2011,42(4):720-729.
[8]	Xu J, Huang F, Wang X. Formation Mechanism of CaS-Al2O3 Inclusions in Low Sulfur Al-Killed Steel After Calcium Treatment[J]. Metallurgical and Materials Transactions B, 2016,47(2):1217-1227.
[8]	Xu J, Huang F, Wang X. Formation Mechanism of CaS-Al2O3 Inclusions in Low Sulfur Al-Killed Steel After Calcium Treatment[J]. Metallurgical and Materials Transactions B, 2016,47(2):1217-1227.
[9]	Zhang T, Wang D, Jiang M. Effect of Magnesium on Evolution of Oxide and Sulphide in Liquid Iron at 1873 K[J]. Journal of Iron and Steel Research, International, 2014,21(12):1073-1080.
[9]	Zhang T, Wang D, Jiang M. Effect of Magnesium on Evolution of Oxide and Sulphide in Liquid Iron at 1873 K[J]. Journal of Iron and Steel Research, International, 2014,21(12):1073-1080.
[10]	JIANGZhou-hua, ZHUANGYing, LIYang, et al. EffectofModificationTreatmentonInclusionsin430StainlessSteelbyMg-AlAlloys[J]. 钢铁研究学报(英文版), 2013,20(5):6-10.
[10]	JIANGZhou-hua, ZHUANGYing, LIYang, et al. EffectofModificationTreatmentonInclusionsin430StainlessSteelbyMg-AlAlloys[J]. 钢铁研究学报(英文版), 2013,20(5):6-10.
[11]	Luo S, Su Y F, Lu M, et al. EBSD analysis of magnesium addition on inclusion formation in SS400 structural steel[J]. Materials Characterization, 2013,82:103-112.
[11]	Luo S, Su Y F, Lu M, et al. EBSD analysis of magnesium addition on inclusion formation in SS400 structural steel[J]. Materials Characterization, 2013,82:103-112.
[12]	Zhang T, Liu C, Qiu J, et al. Effect of Ti Content on the Characteristics of Inclusions in Al–Ti–Ca Complex Deoxidized Steel[J]. ISIJ International, 2017,57(2):314-321.
[12]	Zhang T, Liu C, Qiu J, et al. Effect of Ti Content on the Characteristics of Inclusions in Al–Ti–Ca Complex Deoxidized Steel[J]. ISIJ International, 2017,57(2):314-321.
[13]	Zhang T, Liu C, Jiang M. Effect of Mg on Behavior and Particle Size of Inclusions in Al-Ti Deoxidized Molten Steels[J]. Metallurgical and Materials Transactions B, 2016,47(4):2253-2262.
[13]	Zhang T, Liu C, Jiang M. Effect of Mg on Behavior and Particle Size of Inclusions in Al-Ti Deoxidized Molten Steels[J]. Metallurgical and Materials Transactions B, 2016,47(4):2253-2262.
[14]	袁武华, 王峰. 国内外易切削钢的研究现状和前景[J]. 钢铁研究, 2008,36(5):56-62.
[14]	袁武华, 王峰. 国内外易切削钢的研究现状和前景[J]. 钢铁研究, 2008,36(5):56-62.
[15]	肖国华, 董瀚, 王毛球, 等. 镁和镁钙处理对非调质钢中硫化物形态的影响[J]. 钢铁, 2011,46(4):65-69.
[15]	肖国华, 董瀚, 王毛球, 等. 镁和镁钙处理对非调质钢中硫化物形态的影响[J]. 钢铁, 2011,46(4):65-69.
[16]	张同生, 闵义, 刘承军, 等. 钙镁复合处理对铝镇静钢中夹杂物的变质研究: 第十八届全国炼钢学术会议, 2014[C].
[16]	张同生, 闵义, 刘承军, 等. 钙镁复合处理对铝镇静钢中夹杂物的变质研究: 第十八届全国炼钢学术会议, 2014[C].
[17]	Xu J, Huang F, Wang X. Formation Mechanism of CaS-Al2O3 Inclusions in Low Sulfur Al-Killed Steel After Calcium Treatment[J]. Metallurgical and Materials Transactions B, 2016,47(2):1217-1227.
[17]	Xu J, Huang F, Wang X. Formation Mechanism of CaS-Al2O3 Inclusions in Low Sulfur Al-Killed Steel After Calcium Treatment[J]. Metallurgical and Materials Transactions B, 2016,47(2):1217-1227.
[18]	Kimura S, Nakajima K, Mizoguchi S. Behavior of alumina-magnesia complex inclusions and magnesia inclusions on the surface of molten low-carbon steels[J]. Metallurgical and Materials Transactions B, 2001,32(1):79-85.
[18]	Kimura S, Nakajima K, Mizoguchi S. Behavior of alumina-magnesia complex inclusions and magnesia inclusions on the surface of molten low-carbon steels[J]. Metallurgical and Materials Transactions B, 2001,32(1):79-85.
[19]	Wang L, Yang S, Li J, et al. Effect of Mg Addition on the Refinement and Homogenized Distribution of Inclusions in Steel with Different Al Contents[J]. Metallurgical and Materials Transactions B, 2017,48(2):805-818.
[19]	Wang L, Yang S, Li J, et al. Effect of Mg Addition on the Refinement and Homogenized Distribution of Inclusions in Steel with Different Al Contents[J]. Metallurgical and Materials Transactions B, 2017,48(2):805-818.
[20]	Kim H S, Chang C, Lee H. Evolution of inclusions and resultant microstructural change with Mg addition in Mn/Si/Ti deoxidized steels[J]. Scripta Materialia, 2005,53(11):1253-1258.
[20]	Kim H S, Chang C, Lee H. Evolution of inclusions and resultant microstructural change with Mg addition in Mn/Si/Ti deoxidized steels[J]. Scripta Materialia, 2005,53(11):1253-1258.