Mechanical Properties and Fracuture Mechanism of 62Be-38Al Alloy at High/Low Temperature AITranslate
Abstract AITranslate
The mechanical properties and fracture mechanism of 62 Be-38 Al alloy at high/low temperature of-100~500℃were studied by universal tensile testing machine,metallurgical microscope and scanning electron microscope.The results show that with the increase of temperature,the tensile strength and yield strength of Be-Al alloy decrease,while the elongation increases firstly and then decreases with the maximum value at 300℃.At the same time,with the increase of test temperature,the interface bonding strength of beryllium and aluminum phases is gradually lower than the micro-cleavage fracture strength of beryllium particles,the phase interface fracture in fracture microstructure increases,and the beryllium cleavage surface decreases.When the temperature rises to 500℃,the aluminum phase softens,the bonding strength of the interface between beryllium and aluminum greatly decreases,the strength and plasticity of the alloy sharply decreases,and the fracture surface shows intergranular fracture.In addition,with the increase of temperature,the deformation strengthening index of the alloy monotonously decreases with 0.22 at-150℃and 0.08 at 400℃.
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Basic Information:
DOI：
Chinese Library Classification Number:TG146.2[金属学及工艺—金属材料]
Citation Information:
The mechanical properties and fracture mechanism of 62 Be-38 Al alloy at high/low temperature of-100~500℃were studied by universal tensile testing machine,metallurgical microscope and scanning electron microscope.The results show that with the increase of temperature,the tensile strength and yield strength of Be-Al alloy decrease,while the elongation increases firstly and then decreases with the maximum value at 300℃.At the same time,with the increase of test temperature,the interface bonding strength of beryllium and aluminum phases is gradually lower than the micro-cleavage fracture strength of beryllium particles,the phase interface fracture in fracture microstructure increases,and the beryllium cleavage surface decreases.When the temperature rises to 500℃,the aluminum phase softens,the bonding strength of the interface between beryllium and aluminum greatly decreases,the strength and plasticity of the alloy sharply decreases,and the fracture surface shows intergranular fracture.In addition,with the increase of temperature,the deformation strengthening index of the alloy monotonously decreases with 0.22 at-150℃and 0.08 at 400℃.
quote
| GB/T 7714-2015 | [1] LV Yi-ge, ZHANG Jian-kang, DAI Yan-ming, et al. Mechanical Properties and Fracuture Mechanism of 62Be-38Al Alloy at High/Low Temperature[J]. Rare Metals and Cemented Carbides, 2020(3): 73-76. |
| MLA | [1] LV Yi-ge, et al., "Mechanical Properties and Fracuture Mechanism of 62Be-38Al Alloy at High/Low Temperature." Rare Metals and Cemented Carbides, no. 3, 2020, pp. 73-76. |
| APA | [1] LV Yi-ge, ZHANG Jian-kang, DAI Yan-ming, LI Mei sui, ZHAO Zhi-ling, LI Zhi-nian, LI Jun-yi, & WEI Dong-dong. (2020). Mechanical Properties and Fracuture Mechanism of 62Be-38Al Alloy at High/Low Temperature. Rare Metals and Cemented Carbides(3), 73-76. |
| IEEE | [1] LV Yi-ge, ZHANG Jian-kang, DAI Yan-ming, LI Mei sui, ZHAO Zhi-ling, LI Zhi-nian, LI Jun-yi, and WEI Dong-dong, "Mechanical Properties and Fracuture Mechanism of 62Be-38Al Alloy at High/Low Temperature," Rare Metals and Cemented Carbides, no. 3, pp. 73-76, 2020. keywords: {62Be-38Al alloy;mechanical property;fracture mechanism;deformation strengthening index} |