11.3.4 Low Velocity or Dynamic Compression (Drop Weight) Test Results
Low velocity (drop weight) or dynamic compression tests results were presented in the Fig. 11.8 for two process; sintered and
sintered + forged specimens. Maximum force was evaluated there by the values from both support data points. Here, a series
of impact tests were performed at room temperature at the centre of cylindrical specimens using the instrumented drop weight
test device as explained in detail in second the section (experimental conditions). Three or four specimens were tested for each
composition to obtain average values.
Fig. 11.6 Typical displacement into surface vs time curves during creep tests and a micrograph of the indents
Table 11.4 Modulus and
hardness from unload data
Composition name
Modulus (GPa)
Hardness (MPa)
FALO (sintering)
77.15 Æ 14.69
1.81 Æ 0.63
FALO (sintered forging)
91.78 Æ 11.79
1.81 Æ 0.86
Fig. 11.7 Maximum wear track deformation values obtained for the sintered and sintered + forged specimens and micrograph of 5 of the residual
wear tracks for 500 μm wear track for the sintered + forged specimen
78
H. M. Enginsoy et al.
Low velocity (drop weight) or dynamic compression tests results were presented in the Fig. 11.8 for two process; sintered and
sintered + forged specimens. Maximum force was evaluated there by the values from both support data points. Here, a series
of impact tests were performed at room temperature at the centre of cylindrical specimens using the instrumented drop weight
test device as explained in detail in second the section (experimental conditions). Three or four specimens were tested for each
composition to obtain average values.
Fig. 11.6 Typical displacement into surface vs time curves during creep tests and a micrograph of the indents
Table 11.4 Modulus and
hardness from unload data
Composition name
Modulus (GPa)
Hardness (MPa)
FALO (sintering)
77.15 Æ 14.69
1.81 Æ 0.63
FALO (sintered forging)
91.78 Æ 11.79
1.81 Æ 0.86
Fig. 11.7 Maximum wear track deformation values obtained for the sintered and sintered + forged specimens and micrograph of 5 of the residual
wear tracks for 500 μm wear track for the sintered + forged specimen
78
H. M. Enginsoy et al.