超声处理对铸态二元铝青铜组织与性能的影响

吕海波; 杜阳; 索忠源; 姜峰; 王鑫; 刘祥玲

doi:10.15980/j.tzzz.2020.04.027

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超声处理对铸态二元铝青铜组织与性能的影响
Effects of Ultrasonic Field on Microstructure and Properties of the As-cast Binary Aluminum Bronze
2020年40卷第4期页码：462-464
纸质出版日期： 2020 ，
DOI： 10.15980/j.tzzz.2020.04.027

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[1]吕海波,杜阳,索忠源,姜峰,王鑫,刘祥玲.超声处理对铸态二元铝青铜组织与性能的影响[J].特种铸造及有色合金,2020,40(04):462-464.

Lv Haibo, Du Yang, Suo Zhongyuan, et al. Effects of Ultrasonic Field on Microstructure and Properties of the As-cast Binary Aluminum Bronze[J]. Special Casting & Nonferrous Alloys, 2020,40(4):462-464.
[1]吕海波,杜阳,索忠源,姜峰,王鑫,刘祥玲.超声处理对铸态二元铝青铜组织与性能的影响[J].特种铸造及有色合金,2020,40(04):462-464. DOI： 10.15980/j.tzzz.2020.04.027.

Lv Haibo, Du Yang, Suo Zhongyuan, et al. Effects of Ultrasonic Field on Microstructure and Properties of the As-cast Binary Aluminum Bronze[J]. Special Casting & Nonferrous Alloys, 2020,40(4):462-464. DOI： 10.15980/j.tzzz.2020.04.027.

摘要

研究了超声外场对铸态二元铝青铜组织与性能的影响。结果表明

超声处理能够显著细化合金组织

处理后的铝青铜合金能够获得均匀细小的组织。施加超声处理后的合金抗拉强度为620MPa、硬度（HB）为257、伸长率为2.8%

与未处理态相比

分别提高了17%、51.2%和47.4%。分析其拉伸断口发现

未超声处理的合金断裂方式为脆性断裂

超声处理的合金断口有大量韧窝存在

塑性显著提高。

Abstract

The effects of ultrasonic field on microstructure and properties of as-cast binary aluminum bronze were investigated by OM

SEM and tensile testing

hardness testing.The results reveal that ultrasonic field can refine greatly the structure of alloys

and the treated alloy can possess a uniform and fine structure.The tensile strength

the Brinell hardness and the elongation of the alloy after ultrasonic field treatment reach 620 MPa

HB257 and 2.8%

increased by 17%

51.2%

and 47.4%

respectively

compared with those of the untreated alloy.The fracture analysis shows that the alloy fracture mode of the alloy without ultrasonic field is characterized by brittle fracture

while the ultrasonic treated alloys have a large number of dimples in fracture

greatly improving plastic deformation ability.