高低温熔体混合对Au-20Sn共晶合金凝固组织的影响

doi:10.3724/SP.J.1037.2012.00365

金属学报

2012, Vol. 48

Issue (11): 1387-1393 DOI: 10.3724/SP.J.1037.2012.00365

论文

本期目录 | 过刊浏览

高低温熔体混合对Au-20Sn共晶合金凝固组织的影响

郭德燕, 宋佳佳, 蔡亮, 毛勇

云南大学物理科学技术学院材料科学与工程系, 昆明 650091

EFFECTS OF MELT MIXING WITH HIGH AND LOW TEMPERATURE MELTS ON SOLIDIFACATION MICROSTRUCTURES OF Au-20Sn EUTECTIC ALLOY

GUO Deyan, SONG Jiajia, CAI Liang, MAO Yong

Department of Materials Science and Engineering, School of Physical Science and Technology, Yunnan University, Kunming 650091

引用本文:

郭德燕宋佳佳蔡亮毛勇. 高低温熔体混合对Au-20Sn共晶合金凝固组织的影响[J]. 金属学报, 2012, 48(11): 1387-1393.
GUO Deyan SONG Jiajia CAI Liang MAO Yong. EFFECTS OF MELT MIXING WITH HIGH AND LOW TEMPERATURE MELTS ON SOLIDIFACATION MICROSTRUCTURES OF Au-20Sn EUTECTIC ALLOY[J]. Acta Metall Sin, 2012, 48(11): 1387-1393.

全文: PDF(878 KB)

摘要:

研究了高低温熔体混合处理对Au-20Sn(质量分数, \)共晶合金凝固组织的影响, 分析了Au-20Sn合金凝固组织随熔体混合处理中高温熔体温度变化(低温熔体温度均为283 ℃)的演变规律. 结果表明, 高低温熔体混合处理能有效改善合金凝固组织结构, 采用适当的高温熔体(350 ℃)与低温熔体(283 ℃)进行熔体混合自然冷却凝固, 会抑制初生相ζ'-Au₅Sn的析出, 得到细小全层片共晶组织. 但当高温熔体温度偏高(360 ℃)或偏低(340 ℃)时, Au-20Sn共晶合金凝固组织中均存在初生相ζ'-Au₅Sn. 高低温熔体混合处理改善合金凝固组织的主要原因是降低了凝固过程中Au富集的偏析现象, 改变了ζ'-Au₅Sn相的结晶析出行为. 在220 ℃热压缩变形过程中, 熔体混合得到的细小全层片组织具有良好的热压缩变形能力, 表现为具有较低的屈服应力和恒应力-应变平台.

关键词 ：熔体混合, Au-20Sn共晶合金, 凝固组织, 初生相

Abstract：

The effects of melt mixing with high-temperature and low-temperature melts on Au-20Sn (mass fraction, %) eutectic alloy solidification microstructures have been studied. The solidification microstructure evolutions of Au-20Sn eutectic alloy by the temperatures of high-temperature melt were investigated. Melt mixing with high-temperature and low-temperature melts can effectively improve the solidification microstructure of Au-20Sn alloy. Adopting an appropriate melt mixing condition, which is high-temperature melt with 350 ℃ and low-temperature melt with 283 ℃, the precipitation of primary phase ζ'-Au₅Sn will be inhibited during solidification process, and the full lamellar eutectic microstructure was obtained. When the temperature of high-temperature melt is high (360 ℃) or low (340 ℃), the primary phase ζ'-Au$_{5}$Sn will also exist in the solidification microstructure. Melt mixing with high-temperature and low-temperature melts can effectively decrease the Au atom segregation and modify the precipitation behavior of primary phase ζ'-Au₅Sn. The compressive behavior at 220 ℃ exhibits a low yielding stress and a low stress platform for the alloy with full lamellar eutectic microstructure prepared by melt mixing, which indicates that the hot--workability of Au-20Sn alloy can be improved by melt mixing.

Key words： melt mixing Au-20Sn eutectic alloy solidification microstructure primary phase

收稿日期: 2012-06-20

ZTFLH:

TG146.3+

基金资助:

国家自然科学基金项目50964014和51161024资助

作者简介: 郭德燕, 男, 1986年生, 硕士生

	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
	郭德燕宋佳佳蔡亮毛勇
44.8K

链接本文:

https://www.ams.org.cn/CN/10.3724/SP.J.1037.2012.00365 或 https://www.ams.org.cn/CN/Y2012/V48/I11/1387

[1] Ohmi T, Tanaka Y, Kudoh M, Itoh Y. J Jpn Inst Met, 1992; 56: 1064

[2] Ohmi T, Matsuura K, Kudoh M, Itoh Y. J Jpn Inst Light Met, 1998; 48: 42

[3] Ohmi T, Iguchi M. Mater Sci Forum, 2010; 631: 367

[4] Jian Z Y, Yang G C, Zhou Y H. Trans Nonferrous Met Soc China, 1995; 5: 133

(坚增运, 杨根仓, 周尧和. 中国有色金属学报, 1995; 5: 133)

[5] He S X, Sun B D, Wang J, Zhou Y H. Trans Nonferrous Met Soc China, 2001; 11: 834

(何树先, 孙宝德, 王俊, 周尧和. 中国有色金属学报, 2001; 11: 834)

[6] Wang J, He S X, Sun B D, Li K, Shu D, Zhou Y H. Mater Sci Eng, 2002; A338: 101

[7] Wang J, He S X, Sun B D, Guo Q X, Nishio M. J Mater Process Technol, 2003; 141: 29

[8] Wang Y S,Wang L D, Zhu D Y, QingW, Wen H Y, Liao L. Mater Mech Eng, 2011; 35(2): 12

[9] Oppermann H. In: Zschech E, Whelan C, Mikolajick T eds., Materials for Information Technology. London: Springer–Verlag Press, 2005: 377

[10] Ciulik J, Notis M R. J Alloys Compd, 1993; 191: 71

[11] Liu Z G, Chen D Q, Luo X M. Precious Met, 2005; 26: 62

(刘泽光, 陈登权, 罗锡明. 贵金属, 2005; 26: 62)

[12] Tsai J Y, Chang C W, Shieh Y C, Hu Y C, Kao C R. J Electron Mater, 2005; 34: 182

[13] Zhang G S, Jing H Y, Xu L Y, Wei J, Han Y D. J Alloys Compd, 2009; 476: 138

[14] Chidambaram V, Hattel J, Hald J. J Alloys Compd, 2010; 49: 170

[15] Chidambaram V, Hald J, Hattel J. J Alloys Compd, 2009; 49: 323

[16] Tan Q B, Deng C, Mao Y, He G. Gold Bull, 2011; 44: 27

[17] Novakovic R, Ricci E, Gnecco F, Giuranno D, Borzone G. Surf Sci, 2005; 599: 230

[18] Balagurusamy V S K, Streitel R, Shpyrko O G, Pershan P S, Meron M, Lin B H. Phys Rev, 2007; 15(10)B: 61

[1]	马德新, 赵运兴, 徐维台, 王富. 重力对高温合金定向凝固组织的影响[J]. 金属学报, 2023, 59(9): 1279-1290.
[2]	郭东伟, 郭坤辉, 张福利, 张飞, 曹江海, 侯自兵. 基于二次枝晶间距变化特征的连铸方坯CET位置判断新方法[J]. 金属学报, 2022, 58(6): 827-836.
[3]	吴国华, 童鑫, 蒋锐, 丁文江. 铸造Mg-RE合金晶粒细化行为研究现状与展望[J]. 金属学报, 2022, 58(4): 385-399.
[4]	曹江海, 侯自兵, 郭中傲, 郭东伟, 唐萍. 过热度对轴承钢凝固组织整体形貌特征及渗透率的影响[J]. 金属学报, 2021, 57(5): 586-594.
[5]	张壮, 李海洋, 周蕾, 刘华松, 唐海燕, 张家泉. 齿轮钢铸态点状偏析及其在热轧棒材中的演变[J]. 金属学报, 2021, 57(10): 1281-1290.
[6]	郑秋菊, 叶中飞, 江鸿翔, 卢明, 张丽丽, 赵九洲. 微合金化元素La对亚共晶Al-Si合金凝固组织与力学性能的影响[J]. 金属学报, 2021, 57(1): 103-110.
[7]	李根, 兰鹏, 张家泉. 基于Ce变质处理的TWIP钢凝固组织细化[J]. 金属学报, 2020, 56(5): 704-714.
[8]	邓聪坤,江鸿翔,赵九洲,何杰,赵雷. Ag-Ni偏晶合金凝固过程研究[J]. 金属学报, 2020, 56(2): 212-220.
[9]	吴春雷,李德伟,朱晓伟,王强. 电磁旋流水口连铸技术对小方坯凝固组织形貌和宏观偏析的影响[J]. 金属学报, 2019, 55(7): 875-884.
[10]	李博,张忠铧,刘华松,罗明,兰鹏,唐海燕,张家泉. 高强耐蚀管钢点状偏析及带状缺陷的特征与演变[J]. 金属学报, 2019, 55(6): 762-772.
[11]	张建锋,蓝青,郭瑞臻,乐启炽. 交流磁场对过共晶Al-Fe合金初生相的影响[J]. 金属学报, 2019, 55(11): 1388-1394.
[12]	王宝刚, 易红亮, 王国栋, 骆智超, 黄明欣. 原位生成铁基复合材料中TiB₂的三维形貌重构[J]. 金属学报, 2019, 55(1): 133-140.
[13]	吴国华, 陈玉狮, 丁文江. 高性能镁合金凝固组织控制研究现状与展望[J]. 金属学报, 2018, 54(5): 637-646.
[14]	郭文营,胡小强,马晓平,李殿中. TiN析出相对中碳Cr-Mo耐磨钢凝固组织的影响^*[J]. 金属学报, 2016, 52(7): 769-777.
[15]	刘政,徐丽娜,余昭福,陈杨政. 电磁场作用下半固态A356-La铝合金初生相形貌及分形维数的研究^*[J]. 金属学报, 2016, 52(6): 698-706.

Viewed

Full text

Abstract

Cited

Shared

Discussed