Abstract��The reasons why the failure of spring steel wire fractured were analyzed by fracture analysis, macroscopic examination, metallographic analysis and SEM-EDX analysis. It was inferred that the melting Zn element during heat treatment process caused the steel wire to fracture with inter-granular brittle fracture morphology. Therefore, it was concluded that the failure of steel wire was caused by lowing melting metal.
2011, Vol. 29 
