Study on High and Low Temperature Mechanical Properties of Powder Metallurgy Be-Al Alloy AITranslate
Abstract AITranslate
Tensile tests were conducted on powder metallurgy Be-Al alloy at -100～500 ℃ ,and the effect of temperature on its mechanical properties was analyzed. Its fracture morphologies at different tempera- ture were obtained using scanning electron microscope. The results show that both tensile strength and yield strength decrease with improved temperature, but elongation firstly rises and then falls with improved temperature. The fracture mechanism of Be-Al alloy varies with improved temperature. At low tempera- ture, it is characterized by the mixed fracture of cleavage fracture of beryllium phase and ductile fracture of aluminum phase. With the temperature increasing, cracking of Be/Al interface and ductile fracture of alu- minum phase become main fracture morphologies. The inner stress field distribution of Be-Al alloy in high and low temperature tensile process is simulated with ABAQUS finite element software to reveal the me- chanical mechanism of transition of tensile fracture mode of Be-Al alloy at high temperature.
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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:
Tensile tests were conducted on powder metallurgy Be-Al alloy at -100～500 ℃ ,and the effect of temperature on its mechanical properties was analyzed. Its fracture morphologies at different tempera- ture were obtained using scanning electron microscope. The results show that both tensile strength and yield strength decrease with improved temperature, but elongation firstly rises and then falls with improved temperature. The fracture mechanism of Be-Al alloy varies with improved temperature. At low tempera- ture, it is characterized by the mixed fracture of cleavage fracture of beryllium phase and ductile fracture of aluminum phase. With the temperature increasing, cracking of Be/Al interface and ductile fracture of alu- minum phase become main fracture morphologies. The inner stress field distribution of Be-Al alloy in high and low temperature tensile process is simulated with ABAQUS finite element software to reveal the me- chanical mechanism of transition of tensile fracture mode of Be-Al alloy at high temperature.
quote
| GB/T 7714-2015 | [1] ZHANG Jian-kang, LI Yan, WANG Zhan-hong, et al. Study on High and Low Temperature Mechanical Properties of Powder Metallurgy Be-Al Alloy[J]. Rare Metals and Cemented Carbides, 2017(4): 71-75. |
| MLA | [1] ZHANG Jian-kang, et al., "Study on High and Low Temperature Mechanical Properties of Powder Metallurgy Be-Al Alloy." Rare Metals and Cemented Carbides, no. 4, 2017, pp. 71-75. |
| APA | [1] ZHANG Jian-kang, LI Yan, WANG Zhan-hong, XIA Biao, DAI Yan-ming, LV Yi-ge, LI Mei-sui, ZHONG Jing-ming, & LI Jun-yi. (2017). Study on High and Low Temperature Mechanical Properties of Powder Metallurgy Be-Al Alloy. Rare Metals and Cemented Carbides(4), 71-75. |
| IEEE | [1] ZHANG Jian-kang, LI Yan, WANG Zhan-hong, XIA Biao, DAI Yan-ming, LV Yi-ge, LI Mei-sui, ZHONG Jing-ming, and LI Jun-yi, "Study on High and Low Temperature Mechanical Properties of Powder Metallurgy Be-Al Alloy," Rare Metals and Cemented Carbides, no. 4, pp. 71-75, 2017. keywords: {Be-Al alloy;mechanical property;tensile fracture;fracture mechanism;simulation} |