Thermodynamic Study on Deoxidation Equilibrium of High Alloyed Steel
高合金钢脱氧平衡的热力学研究
基本信息
- 批准号:07455297
- 负责人:
- 金额:$ 4.99万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Scientific Research (B)
- 财政年份:1995
- 资助国家:日本
- 起止时间:1995 至 1996
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Demand for high alloyed steel such as Fe-Ni based alloy, ferrite-and austenite-stainless steel is increasing year by year due to the expansion of the market of advanced electronic materials. For the production of such high purity alloyed steel, it is necessary to control/or minimize non-metallic inclusion in steel products formed during the deoxidation process. A number of investigations have been done on the deoxidation equilibria in conventional low alloyed steel. However, thermodynamic knowledge on the deoxidation equilibria in high alloyed steel is very poor. The objective of the present work is to establish thermodynamic information on the deoxidation equilibria in high alloyed steel containing Ni and Co. In 1995, equilibrium among Mn-Si-O in high manganese steel (<20mass%Mn) was first investigated at MnO saturation in the temperature range from 1550゚C to 1650゚C.It was found that equilibrium oxygen content at high Mn content can not be predicted by using reported interaction parameter, and thermodynamic parameters were re-assessed based on the present experimental results. In 1996, deoxidation equilibria of Al, Ca, Mg, Zr in liquid Fe-Ni-Co alloys were studied. Interaction parameters, deoxidation products and equilibrium constants were determined as a function of temperature. Phase stability of spinel non-metallic inclusion (MgO・Al_2O_3), which is one of the most harmful inclusion, was also predicted in the present work.
由于先进电子材料市场的扩大,对铁镍基合金、铁素体、奥氏体不锈钢等高合金钢的需求逐年增加。为了生产这种高纯度合金钢,必须控制/或尽量减少在脱氧过程中形成的钢产品中的非金属夹杂物。对常规低合金钢的脱氧平衡进行了大量的研究。然而,关于高合金钢脱氧平衡的热力学知识却很少。本研究的目的是建立含Ni和Co的高合金钢的脱氧平衡热力学信息。1995年,在1550 ~ 1650‰的温度范围内,首次研究了Mn- si - o在高锰钢(<20mass%Mn)中的平衡。结果表明,用已有的相互作用参数无法预测高Mn含量时的平衡氧含量,并根据实验结果重新评估了热力学参数。1996年,研究了Fe-Ni-Co液态合金中Al、Ca、Mg、Zr的脱氧平衡。测定了反应参数、脱氧产物和平衡常数随温度的变化规律。本文还对尖晶石非金属夹杂物(MgO·Al_2O_3)的相稳定性进行了预测,这是最有害的夹杂物之一。
项目成果
期刊论文数量(23)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
H.Itoh: "Deoxidation Equilibrium of Magnesium in Liquid Iron" Tetsu-to-Hagane. 83 (in press). (1997)
H.Itoh:“铁液中镁的脱氧平衡”Tetsu-to-Hagane。
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石井不二夫: "固体CaOと平衡するNi-Ca-OとNi-Ta-Ca-Oの融体の熱力学" 鉄と鋼. 82. 465-470 (1996)
Fujio Ishii:“Ni-Ca-O 和 Ni-Ta-Ca-O 与固体 CaO 平衡熔化的热力学” Tetsu to Hagane 82. 465-470 (1996)。
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伊東裕恭: "溶鉄のCa脱酸平衡" 鉄と鋼. 83(印刷中). (1997)
Hiroyasu Ito:“铁水的 Ca 脱氧平衡”Tetsu to Hagane 83(出版中)。
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H.Itoh: "Thermodynamics on the Formation of Spinel Non-metallic Inclusion" Metallurgical and Materials Transactions B. 28B (in press). (1997)
H.Itoh:“尖晶石非金属夹杂物形成的热力学”Metallurgical and Materials Transactions B.28B(出版中)。
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F. Ishii: "Thermodynamics of the Deoxidation Equilibrium of Aluminum in Liquid Nickel and Nickel-Iron Alloys" ISU International. 36・No.1. 25-31 (1996)
F. Ishii:“液态镍和镍铁合金中铝的脱氧平衡的热力学”ISU International 36·No.1(1996)。
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HINO Mitsutaka其他文献
HINO Mitsutaka的其他文献
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{{ truncateString('HINO Mitsutaka', 18)}}的其他基金
Thermodynamic Study of Secondary Refining Slag for Steelmaking
炼钢二次精炼渣的热力学研究
- 批准号:
05650722 - 财政年份:1993
- 资助金额:
$ 4.99万 - 项目类别:
Grant-in-Aid for General Scientific Research (C)
Mathematical Expression of Manganese Distribution in Steelmaking Process by Quadratic Formalism Based on Regular Solution Model
基于正则解模型的二次形式炼钢过程中锰分布的数学表达
- 批准号:
61550487 - 财政年份:1986
- 资助金额:
$ 4.99万 - 项目类别:
Grant-in-Aid for General Scientific Research (C)