Acta Metallurgica Sinica (English Letters) ›› 1990, Vol. 3 ›› Issue (5): 352-356.

• Research paper • Previous Articles     Next Articles

SUBSTRUCTURE ALTERATION OF STAINLESS STEEL DURING CONSTANT STRAIN FATIGUE

WANG Jingyi Xi'an Institute of Technology,Xi'an,ChinaTAN Yuxu MA Zenghai Xi'an Jiaotong University,Xi'an,China Institute of Mealic Materials and Strength,Xi'an Jiaotong University,Xi'an 710049,China   

  • Received:1990-10-25 Revised:1990-10-25 Online:1990-10-25 Published:2009-10-10

Abstract: The alteration of substructure of an austenitic stainless steel has been investigated during con- stant strain fatigue.No plateau stage on the cyclic stress-strain curve was observed for the stainless steel in contrast with a monocrystalline pure copper specimen.This may relate to its low stacking fault energy.During strain fatigue under various amplitudes the substructure of dislocation in austenite alterates correspondingly.It revealed to associate with the appearance change of the cyclic stress-strain curve.

Key words: austenitic strainless steel, strain fatigue, substructure