Compressive Behavior of ME20M Magnesium Alloy at Low Temperatures

Compressive Behavior of ME20M Magnesium Alloy at Low Temperatures
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ME20M镁合金的低温压缩行为

DOI:
10.4028/www.scientific.net/kem.902.15
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发表时间:
2021-10
期刊:
Key Engineering Materials
影响因子:
--
通讯作者:
Zi Ran Li
Zi Ran Li
中科院分区:
其他
文献类型:
--
作者:
Jin Wang;Yang Wang;Zi Ran Li

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研究了ME 20 M合金在低温下沿沿着方向的宽应变速率压缩行为。压缩应力-应变结果表明,应变速率对屈服强度和流变应力的影响不明显,特别是在低温下。此外,温度在压缩响应中起着重要作用。扫描电镜观察表明,在低应变速率下,合金的断裂以脆性断裂为主,在高应变速率下,合金的断裂以韧性断裂为主。
The compressive behavior of ME20M alloy along rolling direction (RD) at a wide strain rates under low temperatures is investigated in this paper. Compressive stress-strain results reveal that the effect of strain rate on yield strength and flow stress is not obvious, especially at low temperatures. Moreover, the temperature plays an important role in compressive responses. SEM observations indicate that brittle fracture is the main fracture mode at low strain rate, and ductile fracture occurs in the failure of the alloy at high strain rate.
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