[1]付海丰,刘洋,孙凤莲,等.SnBi-SACBN 复合锡膏焊后微观组织及力学性能[J].哈尔滨理工大学学报,2018,(01):51-54.[doi:10. 15938 /j. jhust. 2018. 01. 010]
 FU Hai-feng,LIU Yang,SUN Feng-lian,et al. Microstructure and Mechanical Properties of as-solderedSnBi-SACBN Composite Solder Paste[J].哈尔滨理工大学学报,2018,(01):51-54.[doi:10. 15938 /j. jhust. 2018. 01. 010]
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SnBi-SACBN 复合锡膏焊后微观组织及力学性能()
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《哈尔滨理工大学学报》[ISSN:1007-2683/CN:23-1404/N]

卷:
期数:
2018年01期
页码:
51-54
栏目:
材料科学与工程
出版日期:
2018-02-25

文章信息/Info

Title:
 Microstructure and Mechanical Properties of as-soldered
SnBi-SACBN Composite Solder Paste
文章编号:
1007- 2683( 2018) 01- 0051- 04
作者:
 付海丰 刘洋 孙凤莲 张浩 王敏
 ( 哈尔滨理工大学材料科学与工程学院,黑龙江哈尔滨150040)
Author(s):
 FU Hai-feng LIU Yang SUN Feng-lian ZHANG Hao WANG Min
 ( School of Material Science and Engineering,Harbin University of Science and Technology,Harbin 150040,China)
关键词:
 SnBi 复合锡膏 界面组织 硬度 弹性模量
Keywords:
 SnBi composite solder paste interfacial structure hardness elastic modulus
分类号:
TG42
DOI:
10. 15938 /j. jhust. 2018. 01. 010
文献标志码:
A
摘要:
 针对低温无铅钎料Sn58Bi ( SnBi) 焊后脆性问题,采用机械混合方法向SnBi 无铅锡膏
中分别加入质量分数0. 5%、1%、5%的SAC-Bi-Ni ( SACBN) 合金粉末制备复合锡膏。借助扫描电
镜对复合锡膏焊后合金微观组织形貌、成分进行研究,通过纳米压痕法对复合钎料力学性能进行表
征。实验结果表明: 随着复合锡膏中SACBN 微粒含量增加,焊后合金微观组织中β-Sn 相增多,富
Bi 相含量降低,合金中由富Bi 相构成的细小网状组织结构得到抑制。当锡膏中SACBN 微粒含量
由0 增大至5%时,合金硬度从219. 05 N/mm2下降到174. 18 N/mm2,弹性模量由5. 93 N/mm2下降
到2. 86 N/mm2。
Abstract:
 Aiming at the brittleness of Sn58Bi ( SnBi) solder joints,the SnBi composite pastes were prepared
by mechanical mixing method with SAC-Bi-Ni ( SACBN) alloy powder. The concentration of the additives was 0,
0. 5,1,and 5 wt%,respectively. The microstructure and composition of the as-soldered alloys were investigated
by SEM. Meanwhile,the mechanical properties of the alloys were characterized by nanoindentation method.
Experimental results indicate that with the increase of the SACBN content in the composite solder pastes,the
concentration of β-Sn phase increased. In contrast,Bi-rich phase was reduced after reflow. The refined reticular
structure of Bi-rich phase was suppressed in the alloys. As the increase of SACBN particles increased from 0 to 5
wt%,the hardness of the alloy decreased from 219. 05 N/mm2 to 174. 18 N/mm2. Meanwhile,the elastic modulus
decreased from 5. 93 N/mm2 to 2. 86 N/mm2.

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更新日期/Last Update: 2018-05-04