| 无铅电子钎料合金蠕变性能研究 |
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| 引用本文： | 廖福平,周浪,黄惠珍,严明明.无铅电子钎料合金蠕变性能研究[J].电子元件与材料,2005,24(4):65-67. |
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| 作者姓名： | 廖福平 周浪 黄惠珍 严明明 |
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| 作者单位： | 南昌大学材料科学与工程学院,江西,南昌,330047;南昌大学材料科学与工程学院,江西,南昌,330047;南昌大学材料科学与工程学院,江西,南昌,330047;南昌大学材料科学与工程学院,江西,南昌,330047 |
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| 摘 要： | 设计制作了一种简单可靠的弯折蠕变测量装置,比较了两种无铅电子钎料合金Sn-9Zn和Sn-3.5Cu-0.7Ag与传统电子钎料合金Sn-40Pb的常温蠕变性能,以及冷却条件对其蠕变强度的影响。结果表明:两种无铅钎料的抗蠕变性能大大优于传统锡铅钎料;Sn-3.5Ag-0.7Cu合金的抗蠕变性能优于Sn-9Zn合金;冷却速率对Sn-9Zn合金和Sn-3.5Ag-0.7Cu合金组织的影响类似,然而对蠕变强度的影响却相反:水冷使两种合金的组织相对于空冷都明显细化,Sn-9Zn合金的蠕变强度因之降低,而Sn-3.5Ag-0.7Cu合金的蠕变强度却因之提高。对可能产生的原因进行了讨论。
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| 关 键 词： | 金属材料 无铅钎料 蠕变 冷却速率 |
| 文章编号： | 1001-2028(2005)04-0065-03 |
Creep Behavior of Lead-free Electronic Solder Alloys |
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| LIAO Fu-ping,ZHOU Lang,HUANG Hui-zhen,YAN Ming-ming.Creep Behavior of Lead-free Electronic Solder Alloys[J].Electronic Components & Materials,2005,24(4):65-67. |
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| Authors: | LIAO Fu-ping ZHOU Lang HUANG Hui-zhen YAN Ming-ming |
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| Abstract: | A simple and reliable end-creep tester wa maded Room temperature creep tests of lead-free solder alloys Sn-9Zn and n-3.5Ag-0.7Cu,along with the conventional solder alloy Sn-40Pb a a reference,were carried out with the self-made tester.Effect f cooling rate on the creep behavior wa also investigated.The reults show that lead-free solder alloys have higher creep strength than the conventional Sn-40Pb solder alloy.Compared with Sn-9Zn,Sn-3.5Ag-0.7Cu has higher creep strength.For both of the alloys,higher cooling rate reults in finer microstructures.However,the effects of cooling rate on creep strength are different for Sn-9Zn and Sn-3.5Ag-0.7Cu,with the water-cooled Sn-9Zn weader than the air-cooled,while the water-cooled Sn-3.5Ag-0.7Cu stronger than its air-cooled state.the posible reason for thi difference was discussed. |
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| Keywords: | metal materials lead-free solders creep cooling rate |
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