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1473K热处理中Mn-Si脱氧合金与MnO-SiO2-FeO氧化物之间的固相反应

刘成松,李京社,高向宙,杨树峰

北京科技大学

SOLID-STATE REACTION BETWEEN SOLID ALLOY DEOXIDIZED BY Mn AND Si AND MnO-SiO2-FeO OXIDE DURING HEAT TREATMENT AT 1473K

1. University of Science and Technology Beijing 2.

刘成松 李京社 高向宙 杨树峰. 1473K热处理中Mn-Si脱氧合金与MnO-SiO2-FeO氧化物之间的固相反应[J]. 金属学报, DOI: 10.11900/0412.1961.2014.00450.

摘要 相关文章 Metrics 全文: PDF(657 KB)   摘要: 采用扩散偶的方法，利用高温共聚焦激光显微镜和高温感应炉研究了1473 K热处理过程中Mn-Si脱氧合金与MnO-SiO2-FeO氧化物的固相反应及其对2者成分及物相的影响规律，并探讨和分析了凝固过程中合金与氧化物平衡成分变化情况以及高温固相反应机理。结果表明，热处理过程中合金与氧化物发生的固相反应造成合金内Mn，Si元素的损耗，靠近界面处合金内形成了大量MnO-SiO2颗粒，而氧化物中由于FeO成分的分解，产生了单质Fe颗粒，MnO和FeO含量随热处理时间的延长，分别呈上升和下降的趋势。 关键词 ： 夹杂物,  扩散偶,  固相反应,  热处理     Abstract：In order to control physicochemical characteristics of inclusions in steel through appropriate heat treatment process, solid-state reaction between solid alloy deoxidized by Mn and Si and MnO-SiO2-FeO oxide during heat treatment was studied. Using confocal scanning laser Microscope (CSLM) and high temperature induction furnace, the reaction between the Fe-Mn-Si alloy and MnO-SiO2-FeO oxide during heat treatment at 1473K and its influence on the compositions and phases in the alloy and oxide were investigated by diffusion couple method. A suitable method for pre-melting oxide and producing diffusion couple of Fe-Mn-Si alloy and MnO-SiO2-FeO oxide was proposed to obtain good contact between them. After that, the diffusion couple sample with Ti foil for reducing oxygen partial pressure and bulk alloy containing the same compositions was sealed in a quartz tube for carrying out subsequent heat treatment experiment. In addition, equilibrium compositions and phases of the oxide and alloy during solidification and the solid-state reaction mechanism between them were analyzed and discussed. Quantitative analysis of each element in alloy and oxide was calibrated by standard sample before analysis. Result showed that solid-state reaction and element diffusion between the Fe-Mn-Si alloy and MnO-SiO2-FeO oxide were observed which indicated that the alloy and oxide in the diffusion couple was not equilibrated at 1473K, even though the liquid phases of them were equilibrated at 1873K. The activity of FeO in MnO-SiO2-FeO oxide decreased with the decrease of temperature and excess oxygen diffused from oxide to alloy. Mn and Si contents in the alloy were consumed by the chemical reaction and some MnO-SiO2 particles in the alloy near the interface were generated. As the heat treatment time increased from 10 to 50 h, the widths of particle precipitation zone (PPZ) and manganese depleted zone (MDZ) increased from 79 and 120 to 138 μm and 120 μm, respectively. During the heat treatment, the width of MDZ was always greater than that of PPZ. Moreover, Due to the separation of the FeO, pure Fe particles were formed in the oxide. The MnO and FeO contents in the oxide increased and decreased respectively with the increase of the heat treatment time. Key words： Inclusion    diffusion couple    solid-state reaction    heat treatment 收稿日期: 2014-08-13      ZTFLH:  TF769   基金资助:国家自然科学基金 服务 把本文推荐给朋友 加入引用管理器 E-mail Alert RSS 作者相关文章 刘成松 李京社 高向宙 杨树峰 44.8K 链接本文: https://www.ams.org.cn/CN/Y0/V0/I0/0 [1] 王博辰, 任英, 邝霜, 单庆林, 潘宏伟, 路博勋, 石晓伟, 王举金, 张立峰. 铝脱氧钢与CaO-MgO-Al2O3 精炼渣反应动力学研究[J]. 金属学报, 2025, 61(9): 1335-1343. [2] 杨帆, 裴世超, 罗新蕊, 陈宇翔, 李宁宇, 常永勤. 6061铝合金搅拌摩擦增材制造显微组织演变及力学性能[J]. 金属学报, 2025, 61(8): 1129-1140. [3] 张洺川, 徐勤思, 刘意, 蔡雨升, 牟义强, 任德春, 吉海宾, 雷家峰. 热压温度对TC4合金扩散连接区组织与性能的影响[J]. 金属学报, 2025, 61(8): 1183-1192. [4] 雷云龙, 杨康, 辛越, 姜自滔, 童宝宏, 张世宏. 机械合金化AlCrCu0.5Mo0.5Ni高熵合金及其后续退火态的结构演化[J]. 金属学报, 2025, 61(5): 731-743. [5] 段生朝, 刘珍童, 康君, 白乘风, 文健, 刘刚, 张立峰. 综述：中间包钢液二次氧化对钢中非金属夹杂物的影响[J]. 金属学报, 2025, 61(10): 1485-1501. [6] 吴文伟, 向超, 张涛, 邹志航, 孙勇飞, 刘金鹏, 张涛, 韩恩厚. 热处理工艺对选区激光熔化成型18Ni300马氏体时效钢微观组织及力学性能的影响[J]. 金属学报, 2025, 61(10): 1515-1530. [7] 秦凤明, 李亚菲, 李亚杰, 赵晓东, 梁上上, 陈金秋. 热处理对电弧定向能量沉积Al-Zn-Mg-Cu-Sc合金显微组织与力学性能的影响[J]. 金属学报, 2025, 61(10): 1542-1554. [8] 唐丽婷, 郭倩颖, 李冲, 丁然, 刘永长. Allvac 718Plus高温合金第二相演变与性能研究进展[J]. 金属学报, 2025, 61(1): 43-58. [9] 赵亚楠, 郭乾应, 刘晨曦, 马宗青, 刘永长. 后续热处理对激光3D打印GH4099合金微观组织和高温力学性能的影响[J]. 金属学报, 2025, 61(1): 165-176. [10] 孟泽, 李光强, 李腾飞, 郑庆, 曾斌, 刘昱. Ce对75Cr1钢洁净度、组织与耐点蚀性能的影响[J]. 金属学报, 2024, 60(9): 1229-1238. [11] 张星星, LUTZ Andreas, 甘为民, MAAWAD Emad, KRIELE Armin. 退火热处理对增材制造AlSi10Mg合金宏观和微观变形行为的影响[J]. 金属学报, 2024, 60(8): 1091-1099. [12] 李亚微, 谢光, 柯于斌, 卢玉章, 黄亚奇, 张健. 小角中子散射原位研究镍基高温合金第二相析出演化行为[J]. 金属学报, 2024, 60(8): 1100-1108. [13] 张竟文, 余黎明, 刘晨曦, 丁然, 刘永长. 高Cr马氏体耐热钢的协同强化机制及形变热处理应用[J]. 金属学报, 2024, 60(6): 713-730. [14] 曾立, 王桂兰, 张海鸥, 翟文正, 张勇, 张明波. 电弧微铸锻复合增材制造GH4169D高温合金的显微组织与力学性能[J]. 金属学报, 2024, 60(5): 681-690. [15] 余华, 李昕, 江河, 姚志浩, 董建新. 碳化物特征对GH3536合金冷变形损伤的影响及控制[J]. 金属学报, 2024, 60(4): 464-472. Viewed Full text Abstract Cited   Shared      Discussed