Effects of Ultrasonic Field on Microstructures and Properties of Semi-solid AZ91D Magnesium Alloy

武汉理工大学学报-材料科学版(英文版), 2010, 25(4): 555-560. doi: 10.1007/s11595-010-0042-y

^1, , ^2, , ^3, , ^4,

1.Mechanical Engineering Institute, Hunan Industry University, Zhuzhou 412008, China ;Mechanical and Electrical Engineering Institute, Nanchang University, Nanchang 330029, China

2.Mechanical and Electrical Engineering Institute, Nanchang University, Nanchang 330029, China

3.Mechanical and Electrical Engineering Institute, Nanchang University, Nanchang 330029, China

4.Mechanical and Electrical Engineering Institute, Nanchang University, Nanchang 330029, China

基金项目: the Project Funded by Science and Technology Department of Jiangxi Province,China(20061B0102200) the National Science Foundation of China(50465003)

Effects of Ultrasonic Field on Microstructures and Properties of Semi-solid AZ91D Magnesium Alloy

CHEN Guoping ^1, , ZHOU Tianrui ^2, , YAN Hong ^3, , LI Ke ^4,

1.Mechanical Engineering Institute, Hunan Industry University, Zhuzhou 412008, China ;Mechanical and Electrical Engineering Institute, Nanchang University, Nanchang 330029, China

2.Mechanical and Electrical Engineering Institute, Nanchang University, Nanchang 330029, China

3.Mechanical and Electrical Engineering Institute, Nanchang University, Nanchang 330029, China

4.Mechanical and Electrical Engineering Institute, Nanchang University, Nanchang 330029, China

Keywords： magnesium alloy AZ91D

The microstructure distribution rule of semi-solid AZ91D alloy treated by ultrasonic was researched, and mechanical properies of specimens before and after ultrasonic treatment were investigated further.Semi-solid AZ91D melt specimens were processed by ultrasonic under different powers, and its microstructures and mechanical properties at different sampling points in specimens were obtained. The experimental results show that the microstructure of AZ91D alloy at different sampling points under the same ultrasonic power is different in grain size and shape, and there is also great difference among their microstructures at the same sampling point under different ultrasonic powers. AZ91D alloy treated by ultrasonic can obtain increment in both tensile strength and plasticity. Under same ultrasonic power, mechanical properties of specimen at different sampling points have obvious difference, and regularity for change of mechanical properties everywhere is similar to regularity for change of grain size and shape everywhere.

参考文献

[1]	G. I. Eskin .Broad prospects for commercial application of the ultrasonic (cavitation) melt treatment of light alloys[J].Ultrasonics sonochemistry,2001(3):319-325.
[2]	S. Wu;X. Wu;Z. Xiao .A model of growth morphology. for semi-solid metals[J].Acta materialia,2004(12):3519-3524.
[3]	潘蕾,陶杰,陈照峰,刘子利.高能超声在颗粒/金属熔体体系中的声学效应[J].材料工程,2006(01):35-37,42.
[4]	赵君文,吴树森,万里,陈启华,安萍.超声场中金属半固态浆料组织的演化[J].金属学报,2009(03):314-319.
[5]	李军文,桃野正,付莹.超声波功率对铸锭内的气孔及组织细化的影响[J].铸造,2007(02):152-154,157.
[6]	GUO Hongmin,YANG Xiangiie,HU Bin,ZHU Guanglei.Rheo-diecasting Process for Semi-solid Aluminum Alloys[J].武汉理工大学学报(材料科学版),2007(04):590-595.
[7]	刘清梅,龚永勇,侯旭,戚飞鹏,翟启杰.侧部导入超声处理对共晶Al-Si合金凝固特性的影响[J].中国有色金属学报,2007(02):308-312.
[8]	陈康华,黄兰萍,胡化文,刘红卫.熔体超声波处理对超强铝合金组织和性能的作用[J].中南大学学报（自然科学版）,2005(03):354-357.

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材料期刊网

Effects of Ultrasonic Field on Microstructures and Properties of Semi-solid AZ91D Magnesium Alloy

参考文献