CPL - Chalmers Publication Library
| Utbildning | Forskning | Styrkeområden | Om Chalmers | In English In English Ej inloggad.

Comparison of isothermal mechanical fatigue properties of lead-free solder joints and bulk solders

Cristina Andersson (Institutionen för mikroteknologi och nanovetenskap, Fasta tillståndets elektronik)
Materials Science and Engineering Vol. A (2005), 394, p. 20-27.
[Artikel, refereegranskad vetenskaplig]

Low-cycle isothermal mechanical fatigue testing of bulk solders and solder joints of eutectic Sn-37wt%Pb, Sn-3.5wt%Ag, and Sn-4.0wt%Ag-0.5wt%Cu were carried out at room temperature over a wide range of strains (1% 10%). The fatigue results of both bulk and solder joints were compared and the eutectic Sn-37wt%Pb was used for reference. Concerning bulk solders and solder joints, the two lead-free solders displayed better fatigue properties than Sn-37Pb. For all three solder alloys tested, bulk solders showed better fatigue performance than solder joints when subjected to higher strains. The situation was the opposite at lower strains, resulting in bulk solders depicting larger values for the Coffin-Manson fatigue exponent and ductility coefficient compared to solder joints.

Nyckelord: Lead-free, Fatigue, Low cycle fatigue, Solder joints, Bulk, Electronics

Denna post skapades 2007-01-15.
CPL Pubid: 11888


Institutioner (Chalmers)

Institutionen för mikroteknologi och nanovetenskap, Fasta tillståndets elektronik (2003-2006)



Chalmers infrastruktur