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11卷    第z2期    总第100期    2001年11月

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文章编号:1004-0609(2001)S2-0103-04
颗粒成形Al-Pb合金板材的微观结构与力学性能
邓运来, 张新明,  娄燕雄,  刘贵材

(中南大学 材料科学与工程系, 长沙 410083)

摘 要:   研究了Al-8Pb-3Si-2Sn-1Cu(质量分数,%)合金的颗粒在挤压-轧制成形时,合金的微观结构与性能。结果显示: Al-Pb合金颗粒中Pb分布在枝晶间隙或“嵌”在基体中;Al-Pb合金颗粒经挤压-轧制及随后的退火,合金板材中低熔点Pb,Sn第二相均匀地呈球形分布;合金强度(σb)可达95.8*#MPa,延伸率(δ)可达16.3%;在变形过程中,Al-Pb合金颗粒的新生表面层中低熔点Pb,Sn第二相的重新分布影响材料的强度与延伸率。

 

关键字:   铝-铅合金; 微观结构; 性能

Microstructure and mechanical properties of
Al-Pb alloys in  process of achieving sheet from particles
DENG Yun-lai , ZHANG Xin-ming, LOU Yan-xiong , LIU Gui-cai

Department of Materials Science and Engineering,
Central South University, Changsha 410083, P.R.China

Abstract:The micro-structure and mechanical properties of Al-8Pb-3Si-2Sn-1Cu(mass fraction, %) in the process of achieving the sheet from particles by extrusion, rolling and heating were investigated .The results show: the low smelting point phase including lead and tin is well-distributed; the strength and stretch rate of the finished product respectively are 95.8MPa and 16.3%; the existing situation of lead and tin in the new interface of particles is changed by deformation, which affects the strength (σb) and stretch rate (δ%) of the finished product.

 

Key words: Al-Pb alloy; micro-structure; mechanical properties

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

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

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