姜英,方晓英,王友林,陈宗民

• 1:山东理工大学机械工程学院

摘要(Abstract)：

采用电子背散射衍射(EBSD)技术研究了黄铜H68初始样品经6%轧制后在650℃退火不同时间的晶界特征分布(GBCD)。结果表明:特殊晶界比例随退火时间增加而增大,退火10 min时达到峰值76%;同时互成Σ3n(n=1,2,3)界面关系的特殊晶粒团平均尺寸超过300μm,使外围的一般大角晶界网络连通性被阻断,实现了GBCD的优化。分析指出:退火中非共格∑3晶界优先在三叉晶界(triple junctions)处形核并在界面应力(SIBM)作用下迁移,迁移中发生∑3n(n=1,2,3)晶界的交互反应,这可能是样品晶界特征分布随退火时间演化的主要机制。

关键词(KeyWords)： 黄铜H68;轧制;晶界特征分布

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(50771060)

作者(Author): 姜英,方晓英,王友林,陈宗民

DOI: 10.13289/j.issn.1009-6264.2014.s1.014

参考文献(References)：

• [1]范工业.防止铜合金热交换器腐蚀的技术改进[J].全面腐蚀控制,2006,20(5):42-44.FAN Gong-ye.The technieaI improvement to prevent copper alloy heat·exchanger corrosion[J].Total Corrosion Control,2006,20(5):42-44.
• [2]王卫国,周邦新,冯柳,等.冷轧变形Pb-Ca-Sn-Al合金在回复和再结晶过程中的晶界特征分布[J].金属学报,2006,42:715-721.WANG Wei-guo,ZHOU Bang-xin,FENG Liu,et al.Grain boundary chanacter distributions of cold-rolled Pb-Ca-Sn-Al alloy during recovery and recrystallization[J].Acta Metall Sin,2006,42:715-721.
• [3]姜英,蔡正旭,王卫国,等.不同形变量轧制黄铜H80低温退火后的晶界特征分布[J].材料热处理学报,2010,31(6):18-22.JIANG Ying,CAI Zheng-xu,WANG Wei-guo,et al.Grain boundary character distributions of brass H80 annealed at low temperature after rolling at different starin[J].Transactions of Materials and Heat Treatment,2010,31(6):18-22.
• [4]姜英,王友林,代虎波,等.黄铜H68轧制后在不同温度退火样品的晶界特征分布[J].材料热处理学报,2012,33(7):111-115.JIANG Ying,WANG You-lin,DAI Hu-bo,et al.Grain boundary character distributions of brass H68 annealed at different temperature after cold rolling[J].Transactions of Materials and Heat Treatment,2012,33(7):111-115.
• [5]姜英,方晓英,王友林,等.不同温度轧制H68黄铜样品退火后的晶界特征分布[J].材料热处理学报,2014,35(1):40-44.JIANG Ying,FANG Xiao-ying,WANG You-lin,et al.Grain boundary character distributions of brass H68 annealed after cold rolling at different temperatures[J].Transactions of Materials and Heat Treatment,2014,35(1):40-44.
• [6]张坤,王卫国,方晓英,等.不同温度轧制Pb-Ca-Sn-Al合金高温退火后的晶界特征分布[J].金属学报,2008,44(6):652-658.ZANG Kun,WANG Wei-guo,FANG Xiao-ying,et al.Grain boundary character distributions of Pb-Ca-Sn-Al alloy annealed at elevated temperature after rolling at different temperatures[J].Acta Metall Sin,2008,44(6):652-658.
• [7]Brandon D G.The structure of high-angle grain boundaries[J].Acta Metall,1966,14(11):1479-1484.
• [8]Gertsman V Y,Tangri K.On the relationship between∑3nboundaries meeting at a triple junction[J].Scripta Metalhugica et Makriaha,1995,32:1649-1652.
• [9]方晓英,王卫国,郭红,等.304不锈钢冷轧退火∑3n(n=1,2,3)特殊晶界分布[J].金属学报,2007,43(12):1239-1244.FANG Xiao-ying,WANG Wei-guo,GUO Hong,et al.∑3nspecial boundary distributions in the cold-rolled and annealed 304 stainless steel[J].Acta Metall Sin,2007,43(12):1239-1244.
• [10]Gertsman V Y,Henager J C H.Grain boundary junctions in microsturecute generated by multiple twinning[J].Interface Sci,2003,11(4):403-415.
• [11]蔡正旭,王卫国,方晓英,等.晶粒尺寸对冷轧退火纯Cu特殊晶界分布的影响[J].金属学报,2010,46(7):769-774.CAI Zheng-xu,WANG Wei-guo,FANG Xiao-ying,et al.Effect of grain size on the grain boundary character distributions of cold rolled and annealed pure copper[J].Acta Metallurgica Sinica,2010,46(7):769-774.
• [12]姜英,王卫国,郭红,等.H80黄铜轧制退火晶界特征分布与不连续脱溶[J].稀有金属材料与工程,2010,39(6):374-378.JIANG Ying,WANG Wei-guo,GUO Hong,et al.Grain boundary character distributions and discontinuous precipitation in a brass H80 alloy with cold rolling and annealing[J].Rare Metal Materials and Engineering,2010,39(6):374-378.

文章评论(Comment)：