超声振动法制备半固态TiAl_3/A356复合材料浆料的微观组织演变（英文）
|
摘要
利用超声振动法制备半固态TiAl_3/A356铝基复合材料浆料,利用扫描电镜和X射线衍射技术研究了超声温度,超声时间和超声功率对半固态TiAl_3/A356铝基复合材料浆料的微观组织的影响。结果显示,初生α-Al颗粒的尺寸随着超声温度和超声功率的降低而减小;随着超声时间的增加,先减小后增大。当超声温度为608℃、超声功率为1000 W、超声时间为60 s时,获得的半固态浆料组织中的初生α-Al颗粒形貌较为理想,平均初生α-Al颗粒尺寸为62μm,形状系数为0.8。微观组织演变的机理是空化效应和声流效应引起的形核率和过冷度的增加。此外,原位生成的TiAl_3颗粒有很强的结合α-Al颗粒的能力。
The semi-solid TiAl_3/A356 aluminum composite was prepared by ultrasonic vibration treatment(UVT). The effects of UVT temperature, time and power on the microstructure of semi-solid slurry of TiAl_3/A356 composite were studied by SEM and XRD. The results reveal that the size of primary α-Al particles increases with the decrease of UVT temperature and power. The size of the primary α-Al particle decreases first and then increases with the increase of UVT time. When treated at a UVT temperature of 608 °C and a UVT power of 1 kW for 60 s, a good primary α-Al particle morphology with an average size of 62 μm and a shape coefficient of 0.8 can be obtained. The mechanism involved in the development of microstructure is the result of the increase of nucleation rates and undercooling caused by cavitation and acoustic streaming. Furthermore, the in situ TiAl_3 particles have strong ability to nucleate α-Al particles.
The semi-solid TiAl_3/A356 aluminum composite was prepared by ultrasonic vibration treatment(UVT). The effects of UVT temperature, time and power on the microstructure of semi-solid slurry of TiAl_3/A356 composite were studied by SEM and XRD. The results reveal that the size of primary α-Al particles increases with the decrease of UVT temperature and power. The size of the primary α-Al particle decreases first and then increases with the increase of UVT time. When treated at a UVT temperature of 608 °C and a UVT power of 1 kW for 60 s, a good primary α-Al particle morphology with an average size of 62 μm and a shape coefficient of 0.8 can be obtained. The mechanism involved in the development of microstructure is the result of the increase of nucleation rates and undercooling caused by cavitation and acoustic streaming. Furthermore, the in situ TiAl_3 particles have strong ability to nucleate α-Al particles.
引文
1 Chen Z G,Ren J K,Zhang J S et al.Rare Metal Materials&Engineering[J],2015,44(10):2341
2 Ma K K,Wen H M,Hu T et al.Acta Materialia[J],2014,62(5):141
3 Xu F S,Guo X B,Wu P F et al.Rare Metal Materials&Engineering[J],2017,46(4):0876
4 Kong D J,Wang J C,Liu H.Rare Metal Materials&Engineering[J],2016,45(5):1122
5 Jian H G,Yin Z M,Jiang F et al.Rare Metal Materials&Engineering[J],2014,43(6):1332
6 Qi X,Song R G,Qi W J et al.Rare Metal Materials&Engineering[J],2016,45(8):1943
7 Zhou W W,Yamamoto G,Fan Y C et al.Carbon[J],2016,106:37
8 Yuan L L,Han J T,Liu J et al.Tribology International[J],2016,98:41
9 Xie B,Wang X G.Rare Metal Materials&Engineering[J],2015,44(5):1057
10 Wang Z,Prashanth K G,Chaubey A K et al.Journal of Alloys&Compounds[J],2015,630:256
11 Qi C,Wang J N,Lin Y H.Bioresource Technology[J],2016,211:654
12 Zhao Jianhua,Shang Zhengheng,Wang Li et al.Rare Metal Materials&Engineering[J],2015,44(12):3141(in Chinese)
13 Kim J H,Lee K M,Lee H D et al.Materials Transactions[J],2015,56(3):450
14 Chen X H,Yan H.Materials&Design[J],2016,94:148
15 Zhang Junkai,Zhang Qin,Li Ying.Rare Metal Materials&Engineering[J],2017,46(1):274(in Chinese)
16 Zhang Yunpeng,Sun Guangbiao,Zhang Anzhou.Rare Metal Materials&Engineering[J],2014,43(1):189(in Chinese)
17 Huang W X,Yan H.Journal of Rare Earths[J],2014,32(6):573
18 Chen X H,Yan H.Journal of Materials Research[J],2015,30(14):2197
19 Yan H,Rao Y S,He R.Journal of Materials Processing Technology[J],2014,214(3):612
20 Jiang R P,Li X Q,Zhang M.Metals&Materials International[J],2015,21(1):104
21 Wan J,Yan H,Xu D.International Journal of Materials Research[J],2015,106(12):1244
22 Liew P J,Yan J W,Kuriyagawa T.International Journal of Machine Tools&Manufacture[J],2014,76(1):13
23 Lakshmanan P,Kalaichelvan K,Somakumar T.Materials&Manufacturing Processes[J],2015,31(10):1275
2 Ma K K,Wen H M,Hu T et al.Acta Materialia[J],2014,62(5):141
3 Xu F S,Guo X B,Wu P F et al.Rare Metal Materials&Engineering[J],2017,46(4):0876
4 Kong D J,Wang J C,Liu H.Rare Metal Materials&Engineering[J],2016,45(5):1122
5 Jian H G,Yin Z M,Jiang F et al.Rare Metal Materials&Engineering[J],2014,43(6):1332
6 Qi X,Song R G,Qi W J et al.Rare Metal Materials&Engineering[J],2016,45(8):1943
7 Zhou W W,Yamamoto G,Fan Y C et al.Carbon[J],2016,106:37
8 Yuan L L,Han J T,Liu J et al.Tribology International[J],2016,98:41
9 Xie B,Wang X G.Rare Metal Materials&Engineering[J],2015,44(5):1057
10 Wang Z,Prashanth K G,Chaubey A K et al.Journal of Alloys&Compounds[J],2015,630:256
11 Qi C,Wang J N,Lin Y H.Bioresource Technology[J],2016,211:654
12 Zhao Jianhua,Shang Zhengheng,Wang Li et al.Rare Metal Materials&Engineering[J],2015,44(12):3141(in Chinese)
13 Kim J H,Lee K M,Lee H D et al.Materials Transactions[J],2015,56(3):450
14 Chen X H,Yan H.Materials&Design[J],2016,94:148
15 Zhang Junkai,Zhang Qin,Li Ying.Rare Metal Materials&Engineering[J],2017,46(1):274(in Chinese)
16 Zhang Yunpeng,Sun Guangbiao,Zhang Anzhou.Rare Metal Materials&Engineering[J],2014,43(1):189(in Chinese)
17 Huang W X,Yan H.Journal of Rare Earths[J],2014,32(6):573
18 Chen X H,Yan H.Journal of Materials Research[J],2015,30(14):2197
19 Yan H,Rao Y S,He R.Journal of Materials Processing Technology[J],2014,214(3):612
20 Jiang R P,Li X Q,Zhang M.Metals&Materials International[J],2015,21(1):104
21 Wan J,Yan H,Xu D.International Journal of Materials Research[J],2015,106(12):1244
22 Liew P J,Yan J W,Kuriyagawa T.International Journal of Machine Tools&Manufacture[J],2014,76(1):13
23 Lakshmanan P,Kalaichelvan K,Somakumar T.Materials&Manufacturing Processes[J],2015,31(10):1275