Transactions of Nonferrous Metals Society of China The Chinese Journal of Nonferrous Metals

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中国有色金属学报

ZHONGGUO YOUSEJINSHU XUEBAO

第9卷    第2期    总第31期    1999年6月

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文章编号:1004-0609(1999)02-0241-06
快速凝固Cu-Cr-Zr-Mg合金的时效析出与再结晶
刘平1,2     康布熙2    曹兴国2    黄金亮2    殷标2    顾海澄1

(1 西安交通大学材料科学与工程学院, 西安 710049)
2   洛阳工学院材料系,洛阳 471039
)

摘 要: 对快速凝固Cu-0.6Cr-0.15Zr-0.05Mg合金伴随时效析出的再结晶过程进行了观察和研究。发现该合金在形变后的时效过程中,析出相非常细小、弥散,阻碍了再结晶的进行,出现了原位再结晶与不连续再结晶同时发生的现象。在再结晶的形核和长大过程中,析出相在晶界前沿快速粗化或重新溶解,并在再结晶区域中重新析出,导致更加弥散的析出相分布。

 

关键字:       快速凝固         Cu-Cr-Zr-Mg合金        时效析出        再结晶

AGING PRECIPITATION AND RECRYSTALLIZATION   OF RAPIDLY SOLIDIFIED Cu-Cr-Zr-Mg ALLOY
Liu Ping, Kang Buxi, Cao Xingguo, Huang Jinlia ng,Yin Biao and Gu Haicheng

School of Materials Science and Engineering,Xi'an Jiaotong University, Xi'an 710049, P. R. China
Department of Materials, Luoyang Institute of Technology, Luoyang 471039, P. R. China

Abstract:The recrystallization process during aging for a rapidly so lidified Cu-Cr-Zr-Mg alloy was investigated. It was found that the discontinuous recrystallization process has been partially retarded by the ultra-fine and dispersed precipitation during aging after deformation. Thus, a phenominon of simultaneous in situ and discontinuous recrystallizations has been observed in the rapidly solidified Cu-Cr-Zr-Mg alloy. On the formation and growth forecrysta llization, the precipitated phases are coarsened and dissolved in the front of g rain boundaries following a re-precipitation in the recrystallization area, whi ch results in the much more dispersed precipitation of the phases.

 

Key words:  rapid solidification  Cu-Cr-Zr-Mg alloy  aging precipitation     recrystallization

ISSN 1004-0609
CN 43-1238/TG
CODEN: ZYJXFK

ISSN 1003-6326
CN 43-1239/TG
CODEN: TNMCEW

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