Equiaxed MAR-M 247 alloy is to support a stress of 276 MPa (Fig. 7.31). Determine thetime to stress rupture at 850°C.Larsen-Miller parameter, P = [TCC) + 273] [20+ log()] × 10-³23.3 24.4 25.5 26.7 27.8 28.922.23031.1DS MAR-M 247 longitudinal MFB,1221°C/2 t/GFO, 982°C/5 h/AC.871°C/20 h/AC, 1.8 mm diameterproduction dataEquiaxed MAR-M 247 MFB.982°C/5 W/AC+871°C/20 W/ACand 871 C/20 h/AC only.1.8 mm diameter specimensStress (MPa)690552414276207DS CM 247 LC, longitudinal.1232°C/2h+1260°C/20 W/AC982°C/5 h/AC, 871°C/20 V/AC3.2 and 4.1 mm diameter specimens138100806040302010DS CM 247 LC longitudinal,"1232°C/2h+ 1260°C/2 MAC.T1079 C/4 WAC, 871°C/20 W/ACand 1232°C/2h+1260°C/20/AC.1050°C/16h/AC, 871°C/20 WAC3.2 and 4.1 mm diameter specimens40485052545642 44 46Larsen-Miller parameter, P = [T(F) + 460] [20+ log()] x 10-3Figure 7.31Stress (ksi)

Draw the diagram and write the Larsen miller parameter respect to stress of 276 MPa.

Equiaxed MAR-M 247 alloy is to support a stress of 276 MPa (Fig. 7.31). Determine the time to stress rupture at 850°C. Larsen-Miller parameter, P=[T(C) + 273] [20+ log()] x 10³ 23.3 22.2 690 24.4 25.5 26.7 27.8 28.9 30 31.1 552 DS MAR-M 247 longitudinal MFB. 1221°C/2 l/GFO, 982C/5 W/AC. 871°C/20 AC, 1.8 mm diameter production data 414 276 Equiaxed MAR-M 247 MFB. 982°C/5 W/AC+871°C/20 V/AC and 871 C/20 h/AC only. 207 1.8 mm diameter specimens Stress (MPa) DS CM 247 LC, longitudinal 1232C/2h+1260°C/20 W/AC 982C/5 W/AC, 871°C/20 V/AC 3.2 and 4.1 mm diameter specimens 1.38 69 100 80 60 40 DS CM 247 LC longitudinal, 1232C/2h+1260°C/2 MAC. 1079 C/4 MAC, 871C/20 MAC and 1232C/2h+ 1260°C/20/AC. 1050°C/16h/AC, 871°C/20W/AC, 3.2 and 4.1 mm diameter specimens 40 42 46 48 50 52 54 56 44 Larsen-Miller parameter, P- [T(F) + 460] [20+ log(r)] x 10-3 S 20 10 Stress (ksi)

Equiaxed MAR-M 247 alloy is to support a stress of 276 MPa (Fig. 7.31). Determine the time to stress rupture at 850°C. Larsen-Miller parameter, P=[T(C) + 273] [20+ log()] x 10³ 23.3 22.2 690 24.4 25.5 26.7 27.8 28.9 30 31.1 552 DS MAR-M 247 longitudinal MFB. 1221°C/2 l/GFO, 982C/5 W/AC. 871°C/20 AC, 1.8 mm diameter production data 414 276 Equiaxed MAR-M 247 MFB. 982°C/5 W/AC+871°C/20 V/AC and 871 C/20 h/AC only. 207 1.8 mm diameter specimens Stress (MPa) DS CM 247 LC, longitudinal 1232C/2h+1260°C/20 W/AC 982C/5 W/AC, 871°C/20 V/AC 3.2 and 4.1 mm diameter specimens 1.38 69 100 80 60 40 DS CM 247 LC longitudinal, 1232C/2h+1260°C/2 MAC. 1079 C/4 MAC, 871C/20 MAC and 1232C/2h+ 1260°C/20/AC. 1050°C/16h/AC, 871°C/20W/AC, 3.2 and 4.1 mm diameter specimens 40 42 46 48 50 52 54 56 44 Larsen-Miller parameter, P- [T(F) + 460] [20+ log(r)] x 10-3 S 20 10 Stress (ksi)

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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