Two models are presented for the long life (107 cycles) axial fatigue strength of four ferrous powder metal (PM) material series: sintered and heat-treated iron-carbon steel, iron-copper and copper steel, iron-nickel and nickel steel, and pre-alloyed steel. The materials are defined at ranges of carbon content and densities using the broad data available in the Metal Powder Industries Federation (MPIF) Standard 35 for PM structural parts. The first model evaluates 107 cycles axial fatigue strength as a function of ultimate strength and the second model as a function of hardness. For all 118 studied materials, both models are found to have a good correlation between calculated and 107 cycles axial fatigue strength with a high Pearson correlation coefficient of 0.97. The article provides details on the model development and the reasoning for selecting the ultimate strength and hardness as the best predictors for 107 cycles axial fatigue strength. The models can be used in structural and fatigue numerical analysis and in product design and manufacturing.
Long Life Axial Fatigue Strength Models for Ferrous Powder Metals
Sae Int. J. Mater. Manf
Sae International Journal of Materials and Manufacturing
WCX World Congress Experience ; 2018
Sae International Journal of Materials and Manufacturing ; 11 , 4 ; 467-479
2018-04-03
13 pages
Conference paper
English
Metals , Copper , Ferrous metals , Powder metallurgy , Fatigue , Heat treatment , Steel , Nickel
Tema Archive | 1981
|Non-ferrous metals research progress
Engineering Index Backfile | 1953
Non-Ferrous Metals for Aircraft
Emerald Group Publishing | 1930
|Non-ferrous metals and compositions
Engineering Index Backfile | 1921
|Non-Ferrous Metals for Aircraft
Emerald Group Publishing | 1930
|