February 2022 Volume 4

Elongation (%)

Strength (ksi)

Strength (ksi)

(%) 50.5

144.5

169

28

Stress rupture test (Temperature: 1200 F, Axial stress: 110 ksi) (ASTM E 292): Time to Rupture (hrs.) Elongation (%) 26.2 8.9 FORGING RESEARCH

HPM-T4-003

Sample: HPM-TAR-003 ple: HPM-TAR-003 Room temperature tensile test (ASTM E8): 0.2% Offset Yield Strength (ksi) Ultimate Tensile Strength (ksi)

HPM-T4-003

2000X

5000X

Reduction of Area (%)

Elongation (%)

175

207

20

34

Elevated temperature tensile test (1200±3 F) (ASTM E 21): 0.2% Offset Yield Strength (ksi) Ultimate Tensile Strength (ksi)

Reduction of Area (%)

Elongation (%)

143.5

167.5

23.5

39.5

10 µ m

20 µ m

Stress rupture test (Temperature: 1200 F, Axial stress: 110 ksi) (ASTM E 292): Time to Rupture (hrs.) Elongation (%) 19.5 9.2

10000X

25000X

Sample: HPM-TQR-003 ple: HPM-TQR-003 Room temperature tensile test (ASTM E8): 0.2% Offset Yield Strength (ksi) Ultimate Tensile Strength (ksi)

Reduction of Area (%)

Elongation (%)

5 µ m

2 µ m

176

215

20

34

Nb and Mo rich precipitates have been observed along the grain boundaries. HPM-T4-003 Nb and Mo rich precip tates have been observed along the grain boundaries. HPM-T4-003

Elevated temperature tensile test (1200±3 F) (ASTM E 21): 0.2% Offset Yield Strength (ksi) Ultimate Tensile Strength (ksi)

Reduction of Area (%)

Elongation (%)

155.5

168.5

22.5

34

Microstructure Analysis: HPM-T2-003 Stress rupture test (Temperature: 1200 F, Axial stress: 110 ksi) (ASTM E 292): Time to Rupture (hrs.) Elongation (%) 19.4 9.8 Microstructure Analysis: HPM-T2-003

2000X

5000X

10 µ m

20 µ m

10000X

25000X

5 µ m

2 µ m

Nb and Mo rich precipitates have been observed along the grain boundaries.

Nb and Mo rich precipitates have been observed along the grain boundaries.

FIA MAGAZINE | FEBRUARY 2022 76