张荣华,张永安,朱宝宏,郑小平

• 1:河北联合大学冶金与能源学院河北省现代冶金重点实验室
• 2:北京有色金属研究总院有色金属材料制备加工国家重点实验室

摘要(Abstract)：

采用Gleeble-1500热模拟机对喷射成形8009耐热铝合金进行热压缩试验研究,观察该合金在热压缩变形中的流变应力行为。通过透射电镜对压缩合金的组织进行观察,X射线衍射仪对合金中的相进行确定。结果表明,喷射成形8009耐热铝合金是正应变速率敏感材料。在应变速率为0.01 s-1、应变温度为420℃条件下,材料的正应力水平在110~130 MPa范围内,因此在420℃下进行热加工时,施加的应力应当高于130 MPa。沉积态8009耐热铝合金分别在380℃、420℃、460℃,0.01 s-1的应变速率压缩后,合金中的相相近,主要包括α-Al和体心立方结构的α-Al12(Fe,V)3Si相,同时合金中还包含少量的θ-Al13Fe4相,Al9FeSi3相和Al12Fe3Si相。

关键词(KeyWords)： 8009铝合金;喷射成形;塑性变形;组织

Abstract:

Keywords:

基金项目(Foundation): 唐山市科技计划项目(12110219b);; 河北省自然科学基金(E2013209268)

作者(Author): 张荣华,张永安,朱宝宏,郑小平

DOI: 10.13289/j.issn.1009-6264.2014.04.024

参考文献(References)：

• [1]Couper M J,Luster J W,Thumarm M.Development of elevated temperature powder metallurgy aluminum alloys[J].International Journal of Powder Metallurgy,1991,23(1):7-15.
• [2]Ling X,Lavernia E J.Evolution of interaction domain microstructure during spraying deposition[J].Metallurgical and Materials Transactions A,1994,25(11):2341-2355.
• [3]Mitra S.Strain hardening in a dispersion strengthened Al-Fe,V,Si alloy at elevated temperatures[J].Journal of Materials Science Letters,1994,13(17):1296-1300.
• [4]Satoh T,Okimoto K Nishida S.High-temperature deformation behavior of aluminum alloys produced from centrifugally-atomized powders[J].Journal of Materials Processing Technology,1997,68(3):221-228.
• [5]Wright R N,Paulson M S.Constitutive equation development for high strain deformation processing of aluminum alloys[J].Journal of Materials Processing Technology,1998,80-81:556-559.
• [6]Carreno F,RuaNo.A.On the high temperature creep behavior of two rapidly solidified dispersion strengthened Al-Fe-V-Si materials[J].Journals of Metals,1998,89(3):216-221.
• [7]Shimansky D,McQueen H J.Hot-working of heat-resistant rapidly solidified Al-Fe-V-Si alloy[J].High Temperature Materials and Processes,1999,18(4):241-252.
• [8]Davies H A.Processing,properties and applications of rapidly solidified advanced alloy powders[J].Powder Metallurgy,1990,33(3):223-228.
• [9]Mitra S.Elevated temperature mechanical properties of a rapidly solidified Al-Fe-V-Si alloy[J].Scripta Metallurgica et Materialia,1992,27(5):521-526.
• [10]詹美艳,陈振华,夏伟军.喷射沉积-轧制工艺制备的FVS0812薄板的高温组织和力学性能[J].中国有色金属学报,2004,14(8):1348-1352.ZHAN Mei-yan,CHEN Zhen-hua,XIA Wei-jun.Microstructure and properties of of spray-deposited heat-resistant FVS0812 aluminum alloy at high temperature[J].The Chinese Journal of Nonferrous Metals,2004,14(8):1348-1352.
• [11]Sahoo K L,Das S K,Murty B S.Formation of novel microstructures in conventionally cast Al-Fe-V-Si alloys[J].Materials Science and Engineering A,2003,355(1-2):193-200.
• [12]L R E Franck and J A Hawk.Effect of very high temperatures on the mechanical properties of Al-Fe-V-Si alloy[J].Scripta Metallurgica,1989,23(1):113-118.
• [13]Carreno F,Perez-Prado M T,Gonzalez-Doncel G,et.al.Texture stability of a rapidly solidified dispersion strengthened Al-Fe-V-Si material[J].Scripta Materialia,1998,38(9):1427-1433.
• [14]曾欲晓,李松瑞,黎文献,等.快凝AlFeVSi合金的高温退火行为[J].金属学报,1996,32(4):368-372.ZENG Yu-xiao,LI Song-rui,LI Wen-xian,et al.High temperature annealing behaviour of rapidly solidified AlFeVSi alloy[J].Acta Metallurgica Sinica,1996,32(4):368-372.

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