碳饱和铁锰硅合金中氮在铸造过程中的热力学行为

IF 1.3 4区材料科学 Q3 METALLURGY & METALLURGICAL ENGINEERING

International Journal of Cast Metals Research Pub Date : 2020-09-02 DOI:10.1080/13640461.2020.1834176

Min-Kyu Paek, Junmo Jeon, D. Lindberg

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引用次数: 2

摘要

基于N在碳饱和含铁Mn和Si中的溶解度信息，研究了铸铁中氮气形成的演化过程。为了验证Fe-Mn-Si-C相图的准确性，利用差示扫描量热法在纯化氩气氛下，根据Mn浓度测量了Fe-Mn-2.7 wt%Si-Csat合金的转变温度。利用Fe-Mn-Si-C-N体系的热力学模拟结果，描述了N在饱和碳铁合金中液相和固相的溶解度极限。在500 ~ 900℃温度范围内进行了冷却和淬火实验，考察了温度和相变对N溶解度极限的影响。

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Thermodynamic behaviour of nitrogen in the carbon saturated Fe-Mn-Si alloy during casting

ABSTRACT The evolution of nitrogen gas formation in cast iron was studied based on the information of the N solubility in the carbon-saturated iron-containing Mn and Si over the wide temperature range. In order to verify the accuracy of the Fe-Mn-Si-C phase diagram, the transition temperatures of the Fe-Mn-2.7 wt%Si-Csat alloys were measured according to the Mn concentration using a differential scanning calorimetry under the purified Ar atmosphere. The recent thermodynamic modelling result of the Fe-Mn-Si-C-N system was used to describe the solubility limit of N in liquid and solid solution in the carbon saturated iron alloys. The cooling and quenching experiments were also carried out to check the effects of temperature and phase transformation on the N solubility limit in the temperature range from 500°C to 900°C.

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来源期刊

International Journal of Cast Metals Research 工程技术-冶金工程

CiteScore

2.70

自引率

7.10%

发文量

审稿时长

7.5 months

期刊介绍： The International Journal of Cast Metals Research is devoted to the dissemination of peer reviewed information on the science and engineering of cast metals, solidification and casting processes. Assured production of high integrity castings requires an integrated approach that optimises casting, mould and gating design; mould materials and binders; alloy composition and microstructure; metal melting, modification and handling; dimensional control; and finishing and post-treatment of the casting. The Journal reports advances in both the fundamental science and materials and production engineering contributing to the successful manufacture of fit for purpose castings.