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首页> 外文期刊>Journal of Materials Engineering and Performance >The Effect of Annealing on the Properties of AW5754 Aluminum Alloy-AZ31B Magnesium Alloy Explosively Welded Bimetals
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The Effect of Annealing on the Properties of AW5754 Aluminum Alloy-AZ31B Magnesium Alloy Explosively Welded Bimetals

机译：退火对AW5754铝合金-AZ31B镁合金爆炸物焊接双金属性能的影响

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摘要

Explosive welding of AW5754 aluminum alloy to AZ31B magnesium alloy was performed. AW5754 was proposed as a flyer plate. A parallel setup was used during explosive welding. The annealing of AW5754/AZ31B composite plate at 250, 300 and 350 degrees C for 2, 3, 4 and 5 h was performed after explosive welding. Bimetals were characterized by regular wavy interface. Annealing resulted in the creation of intermetallic compounds (IMCs). The increase in the thickness of IMC interfacial layer was observed with increasing of annealing temperature and time. IMC layer of highest thickness was recorded after annealing at 350 degrees C for 5 h and averaged 67 mu m. EDS analysis showed that the interfacial layer close to AW5754 alloy was formed by Al3Mg2 IMC, and interfacial layer adjacent to the AZ31B alloy consisted of Mg17Al12 IMC. Bright particles were spread at the AW5754-Al3Mg2 IMC interface. Rise in the microhardness at the interface of produced bimetal was associated with work hardening. Microhardness values increased to 218 HV0.025 after annealing process due to IMCs present at the interface. Decrease in microhardness in locations close to the IMC interfacial layer was found after heat treatment due to recrystallization. The bimetal tensile strength reached 120 MPa. The annealing resulted in decrease in the bimetal tensile strength.
机译：AW5754铝合金对AZ31B镁合金的爆炸焊接。 AW5754被提出为传单板。在爆炸焊接期间使用平行设置。在爆炸焊接后，进行250,300和350℃的AW5754 / AZ31B复合板2,3,4和5小时的退火。通过常规波浪界面的特征在于双金属。退火导致造成金属间化合物（IMC）。随着退火温度和时间的增加，观察到IMC界面层的厚度的增加。在350℃下退火5小时后记录最高厚度的IMC层，并平均为67μm。 EDS分析表明，接近AW5754合金的界面层由Al3MG2 IMC形成，并且与AZ31B合金相邻的界面层由Mg17Al12 IMC组成。在AW5754-AL3MG2 IMC界面处涂布明亮的颗粒。产生的双金属界面的微硬度升起与工作硬化相关。由于在界面处存在的IMC，微硬度值增加到218 HV0.025。在热处理后发现在热处理后发现靠近IMC界面层的位置的显微硬度下降。双金属抗拉强度达到120mPa。退火导致双金属拉伸强度降低。

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