双级固溶处理对2219铝合金锻环各向异性及力学性能的影响

刘塑; 张昀; 李瑞卿; 李晓谦

doi:10.15980/j.tzzz.2019.05.031

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双级固溶处理对2219铝合金锻环各向异性及力学性能的影响
Effects of Two-stage Solid Solution Treatment on Anisotropy and Mechanical Properties of 2219 Aluminum Alloy Forging Ring
2019年39卷第5期页码：577-580
纸质出版日期： 2019 ，
DOI： 10.15980/j.tzzz.2019.05.031

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[1]刘塑,张昀,李瑞卿,李晓谦.双级固溶处理对2219铝合金锻环各向异性及力学性能的影响[J].特种铸造及有色合金,2019,39(05):577-580.

Liu Su, Zhang Yun, Li Ruiqing, et al. Effects of Two-stage Solid Solution Treatment on Anisotropy and Mechanical Properties of 2219 Aluminum Alloy Forging Ring[J]. Special Casting & Nonferrous Alloys, 2019,39(5):577-580.
[1]刘塑,张昀,李瑞卿,李晓谦.双级固溶处理对2219铝合金锻环各向异性及力学性能的影响[J].特种铸造及有色合金,2019,39(05):577-580. DOI： 10.15980/j.tzzz.2019.05.031.

Liu Su, Zhang Yun, Li Ruiqing, et al. Effects of Two-stage Solid Solution Treatment on Anisotropy and Mechanical Properties of 2219 Aluminum Alloy Forging Ring[J]. Special Casting & Nonferrous Alloys, 2019,39(5):577-580. DOI： 10.15980/j.tzzz.2019.05.031.

摘要

通过对2219铝合金锻环进行不同固溶工艺处理

研究不同双级固溶处理工艺对2219铝合金锻环组织、性能及各向异性的影响。组织与力学性能检测结果表明

经双级固溶处理后

2219铝合金锻环的各向异性依然明显;随着一级固溶温度由200℃逐渐提高到450℃

合金的强度和伸长率变化趋势呈现出两个波峰的形状

分别在250℃和400℃处取得极大值。当一级固溶温度为400℃时

合金径向力学性能达到峰值

其抗拉强度、屈服强度和伸长率分别为402MPa、293MPa和12.67%。

Abstract

The effects of different two-stage solid solution treatment on the structure

properties and anisotropy of 2219 aluminum alloy ring forgings were analyzed with different solid solution parameters by micorstructure observation and tensile testing.The results reveal that the anisotropy of 2219 aluminium alloy forging rings is still apparent after two-stage solution treatment.With the first-stage solution temperature increasing from 200℃ to 450℃

the strength and elongation of the alloy show two peaks

and the maximum values are obtained at 250℃ and 400℃

respectively.When the first-stage solution temperature is 400 ℃

the radial mechanical properties reach peak value

where the tensile strength

yield strength and elongation reach 402 MPa

293 MPa and 12.67%

respectively.