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Effects of Annealing Temperatures on Mechanical Properties and Intergranular Corrosion Behavior of Al-Cu-Mg-Ag Alloys
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Shujuan WANG, Song BAI, Zhiyi LIU
Mining and Metallurgical Engineering | 2026, 46(4) : 215 - 221
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Mining and Metallurgical Engineering | 2026, 46(4): 215-221
• MATERIALS •
Effects of Annealing Temperatures on Mechanical Properties and Intergranular Corrosion Behavior of Al-Cu-Mg-Ag Alloys
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Shujuan WANG, Song BAI, Zhiyi LIU
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  • School of Materials Science and Engineering, Central South University, Changsha 410083, Hunan, China
doi: 10.3969/j.issn.0253-6099.2026.04.033
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The effects of annealing temperatures on mechanical properties, intergranular corrosion resistance and microstructure of an Al-Cu-Mg-Ag alloy sheet were investigated by tensile tests, intergranular corrosion tests, electrochemical measurements, scanning electron microscopy, transmission electron microscopy and X-ray diffraction. The results show that with an annealing time of 4 h, the annealing temperature increased from 335 ℃ to 395 ℃ can refine the recrystallized grains of alloy sheet and promote the dissolution of residual second-phase particles, which significantly enhances the mechanical properties of the alloy. Cube texture preferentially develops in specimens annealed at 335 ℃ for 4 h, whereas Goss texture becomes the dominant texture after annealing at 395 ℃ for 4 h. It is found that higher annealing temperatures lead to increased corrosion current density and negative shift of corrosion potential, which accelerates the intergranular corrosion rate and degrades the corrosion resistance of the alloy sheet.

Al-Cu-Mg-Ag alloy  /  annealing  /  grain size  /  intergranular corrosion  /  texture evolution  /  heat treatment
王树娟, 柏松, 刘志义. 退火温度对Al-Cu-Mg-Ag合金力学性能和晶间腐蚀行为的影响. 矿冶工程杂志, 2026 , 46 (4) : 215 -221 . DOI: 10.3969/j.issn.0253-6099.2026.04.033
Shujuan WANG, Song BAI, Zhiyi LIU. Effects of Annealing Temperatures on Mechanical Properties and Intergranular Corrosion Behavior of Al-Cu-Mg-Ag Alloys[J]. Mining and Metallurgical Engineering, 2026 , 46 (4) : 215 -221 . DOI: 10.3969/j.issn.0253-6099.2026.04.033
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Year 2026 volume 46 Issue 4
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doi: 10.3969/j.issn.0253-6099.2026.04.033
  • Receive Date：2026-02-25
  • Online Date：2026-10-08
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  • Received：2026-02-25
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    School of Materials Science and Engineering, Central South University, Changsha 410083, Hunan, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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