Proceedings of the Korean Society of Machine Tool Engineers Conference (한국공작기계학회:학술대회논문집)
- 2004.04a
- /
- Pages.136-142
- /
- 2004
Fatigue Characteristics and FEM Analysis of 18Ni(200) Maraging Steel
18Ni 마르에이징강의 피로특성 및 유한요소해석
Abstract
Effects of Nb(Niobium) contents and solution annealing on the strength and fatigue lift of 18%Ni maraging steel commonly using in aircraft, space field, nuclear energy, and vehicle etc. were investigated. Also the fatigue life stress intensity factor were compared experiment result and FEA(finite element analysis) result. The more Nb content, the higher or the lower fatigue lift on base metal specimens or solution annealed specimens showing that the fatigue life was almost the same. The maximum stresses of X, Y, and Z axis direction showed about 2.12
Keywords
- Nb content;
- Solution annealing;
- Fatigue life;
- Fatigue crack;
- Stress intensity factor;
- FEA;
- Base metal