镁含量对粉末冶金Al-3.9Cu-Mg合金组织与力学性能的影响

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Abstract Al-3.9Cu-Mg alloy with Mg content (mass fraction) of 0.5%, 0.8%, 1%, 1.2% and 1.6% were prepared by powder metallurgy using high-purity aluminum powder, copper powder and Mg powder as raw materials. The microstructural analysis and mechanical property tests were carried out to study the effects of Mg content on the microstructure and mechanical properties. The results show that the optimum sintering temperature is 620 ℃ when the Mg content is less than 2%. The microstructure of the alloy tends to be uniform with increasing the content of Mg. The density, hardness, and tensile strength of the alloy first increase and then decrease with increasing Mg content. The optimal properties of Al-3.9Cu-1Mg alloy with a density of 98.1%, a hardness (HBW) of 93.1, and a tensile strength of 242 MPa is obtained when the Mg content is 1%.

Key words： powder metallurgy Al alloy Mg content sinter temperature tensile strength

Received: 14 March 2018 Published: 19 July 2019

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	XIE Jiaoya
	LIU Rutie
	CHEN Jie
	XIONG Xiang
	LUAN Huaizhuang

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XIE Jiaoya,LIU Rutie,CHEN Jie, et al. Effects of the magnesium content on the microstructure and mechanical properties of Al-Cu-Mg sintered alloy[J]. Materials Science and Engineering of Powder Metallurgy, 2018, 23(6): 547-552.

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http://pmbjb.csu.edu.cn/EN/ OR http://pmbjb.csu.edu.cn/EN/Y2018/V23/I6/547

[1] 张春芝, 孔令亮, 李辉平. 镍添加对粉末冶金Al_94.5Cu₄Mg_1.5耐腐蚀性能的提升作用[J]. 材料导报, 2017, 31(20): 39-43.
ZHANG Chunzhi, KIONG Lingliang, LI Huiping.Improved corrosion resistance of powder metallurgical Al_94.5Cu₄Mg_1.5 by nickel addition[J]. Materials Review, 2017, 31(20):39-43.
[2] 陈峰, 闫志巧, 蔡一湘. 粉末冶金铝合金及复合材料的研究现状与发展趋势[J]. 材料研究与应用, 2014, 8(1): 1-5.
CHEN Feng, YAN Zhiqiao, CAI Yixiang.Research status and development tendency of aluminum-based alloys and composites fabricated by powder metalurgy[J]. Materials Research and Application, 2014, 8(1): 1-5.
[3] HEARD D H, DONALDSON I W.Metallurgical assessement of a hypereutectic aluminum-silicon PM alloy[J]. Journal of Materials Processing Technology, 2009(209): 5902-5911.
[4] 包崇玺, 周国燕. 烧结铝合金及其在汽车上的应用[J]. 汽车工艺与材料, 2012, 27(10): 47-52.
BAO Chongxi, ZHOU Guoyan.Sintered aluminum alloy and its application in automobiles[J]. Automobile Technology & Material, 2012, 27(10): 47-52.
[5] 王兴庆. 铝粉末冶金的发展现状[J]. 现代制造技术与装备, 2012(s): 4-6.
WANG Xingqing.Situation of development of aluminum powder metallurgy[J]. Modern Manufacturing Technology and Equipment, 2012(s): 4-6.
[6] 隋忠祥, 张军, 文子, 等. 粉末冶金法制备高强铝合金的组织与性能[J]. 汽车工艺与材料, 2004(7): 16-17.
SUI Zhongyang, ZHANG Jun, WEN Zi, et al.Structure and properties of high strength Al-Alloy by taking PM method[J]. Automobile Technology & Material, 2004(7): 16-17.
[7] 胡绍磊, 查五生, 贾永灿. 铜含量对铝铜烧结材料性能影响[J]. 四川有色金属, 2010(4): 24-27.
HU Shanlei, CHA Wusheng, JIA Yongsan.Effect of the copper content on Al-Cu sintered materials[J]. Sichuan Nonferrous Metals, 2010(4): 24-27.
[8] 马瑞, 周娟, 肖于德. 两种方法制备高强铝合金的组织和力学性能对比[J]. 轻合金加工技术, 2010, 38(10): 51-54.
MA Rui, ZHOU Juan, XIAO Yudei.Comparison between microstructures and mechanical properties of high strength Al alloy prepared by two different ways[J]. Light Alloy Fabrication Technology, 2010, 38(10): 51-54.
[9] 曹慧钦, 郭志猛, 叶安平, 等. 高性能2024铝合金的制备和性能研究[J]. 粉末冶金工业, 2015, 25(6): 30-35.
CAO Huiqin, GUO Zhimeng, YE Anping, et al.Fabrication and mechanical properties of high performance 2024 aluminum alloy[J]. Powder Metallurgy Industry, 2015, 25(6): 30-35.
[10] RUDINSK S, AGUIRRE J M, SWEET G, et al.Spark plasma sintering of an Al-based powder blend[J]. Materials Science and Engineering, 2015, 209: 5902-5911.
[11] ROMETSCH P A, ZHANG Y, KNIGHT S.Heat treatment of 7xxx series aluminium alloys[J]. Transactions of Nonferrous Metals Society of China, 2014, 24(7): 2003-2017.
[12] LUMLEY R N, SERCOMBE T B, SCHAFFER G M.Surface oxide and the role of magnesium during the sintering of aluminum[J]. Metallurgical and Materials Transactions A, 1999, 30: 457-463.
[13] SERCOMBE T B, SCHAFFER G B.On the role of magnesium and nitrogen in the infiltration of aluminium by aluminium for rapid prototyping applications[J]. Acta Materialia, 2004, 52: 3019-3025.
[14] OH M C, AHN B.Effect of Mg composition on sintering behaviors and mechanical properties of Al-Cu-Mg alloy[J]. Transactions of Nonferrous Metals Society of China, 2014(24): S53-S58.