naa a22 4500 510822703 CHVBK 20180411083541.0 cr unu---uuuuu 180411e20130701xx s 000 0 eng 10.1007/s12541-013-0169-9 doi (NATIONALLICENCE)springer-10.1007/s12541-013-0169-9 Prediction of steady-state creep strain rate and rupture life for SnAg-based Lead-free solder joints by SP test [Elektronische Daten] [Zheng-Jie Yang, Hyo-Sun Yu, Sung-Mo Yang, Joon-Hyuk Song, So-Young Park] This is to predict the equation of steady-state creep strain rate and rupture life of Lead-free solder joints and to observed the fractographies of the surfaces of the fractured solder joints using the SP creep test method. In this research, Sn-4Ag, Sn-4Ag-0.5Cu, Sn-4Ag-1.0Cu and Sn-37Pb solders are used. So as to compare the Lead-free solder alloys with lead(Pb) containing solder alloys. In addition, SP creep tests are held at temperature of 30, 50 and 80¢™C. And the shear stresses used in the research are in the range of 3 to 22 MPa. The microstructure characterization and fractographic analysis of the fractured solder joints are conducted to fully describe the creep behavior of the solder joints. Increasing the testing temperature from 30 to 80°C has some effect on the fracture behavior of ternary SnAgCu solder joints during creep testing. The increased temperature made the joints more vulnerable to the brittle interfacial fracture. In addition, Sn-37Pb solder joint, dimples in the fractured surfaces are much smaller than that of the Lead-free solder joints. Also using the creep data, we obtained a prediction equation of steady-state creep strain rate and rupture life for Lead-free solder joint in this research. Korean Society for Precision Engineering and Springer-Verlag Berlin Heidelberg, 2013 Steady-state creep nationallicence Strain rate nationallicence Rupture life nationallicence SnAg-based lead-free solder joint nationallicence SP test nationallicence Fractured solder joints nationallicence Yang Zheng-Jie School of Mechanical System Engineering, Chonbuk National University, 664-14, Duckjin-Dong, Duckjin-Gu, 561-756, Jeonju, South Korea aut Yu Hyo-Sun School of Mechanical System Engineering, Chonbuk National University, 664-14, Duckjin-Dong, Duckjin-Gu, 561-756, Jeonju, South Korea aut Yang Sung-Mo School of Mechanical System Engineering, Chonbuk National University, 664-14, Duckjin-Dong, Duckjin-Gu, 561-756, Jeonju, South Korea aut Song Joon-Hyuk Jeonju Institute of Machinery and Carbon Composites, 561-844, Jeonju, South Korea aut Park So-Young School of Mechanical System Engineering, Chonbuk National University, 664-14, Duckjin-Dong, Duckjin-Gu, 561-756, Jeonju, South Korea aut International Journal of Precision Engineering and Manufacturing Springer Berlin Heidelberg 14/7(2013-07-01), 1245-1250 2234-7593 14:7<1245 2013 14 12541 https://doi.org/10.1007/s12541-013-0169-9 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s12541-013-0169-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Yang Zheng-Jie School of Mechanical System Engineering, Chonbuk National University, 664-14, Duckjin-Dong, Duckjin-Gu, 561-756, Jeonju, South Korea aut NATIONALLICENCE 700 1- Yu Hyo-Sun School of Mechanical System Engineering, Chonbuk National University, 664-14, Duckjin-Dong, Duckjin-Gu, 561-756, Jeonju, South Korea aut NATIONALLICENCE 700 1- Yang Sung-Mo School of Mechanical System Engineering, Chonbuk National University, 664-14, Duckjin-Dong, Duckjin-Gu, 561-756, Jeonju, South Korea aut NATIONALLICENCE 700 1- Song Joon-Hyuk Jeonju Institute of Machinery and Carbon Composites, 561-844, Jeonju, South Korea aut NATIONALLICENCE 700 1- Park So-Young School of Mechanical System Engineering, Chonbuk National University, 664-14, Duckjin-Dong, Duckjin-Gu, 561-756, Jeonju, South Korea aut NATIONALLICENCE 773 0- International Journal of Precision Engineering and Manufacturing Springer Berlin Heidelberg 14/7(2013-07-01), 1245-1250 2234-7593 14:7<1245 2013 14 12541 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer