سلوك ضرر الكلال التراكمي لسبيكة الالمنيوم ٢٠٢٤ تحت تأثير زمن التصليد بالقذف بالكريات المعدنية

الملخص EN

Fatigue damage accumulation behavior of 2024 Al-alloy has been investigated under the effect of varying the time of shot peening.

Damage accumulation from low-high and from high- low stresses has been studied using rotating bending tests.

The time of shoot peening is in the range 2-20 min.

The conclusions derived from this study are: 1.

The number of cycles to failure increases as the shot peening time increases up to about (6-8) min.

after that the number of cycles decreases.

2.

Surface roughness (Ra) is approximately proportional to the time duration of shot peening.