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Draw a stress-strain curve for a low carbon steel and explain important points and regions in detail. What fracture behavior does this steel exhibit?

Draw a stress-strain curve for a low carbon steel and explain important points and regions in detail. What fracture behavior does this steel exhibit?

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
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Draw a stress-strain curve for a low carbon steel and explain important points and regions in detail. What fracture behavior does this steel exhibit?

Table 5.2 A Tabulation of Diffusing Species D(m²/s) Host Metal QJ/mol) Diffusion Data Interstitial Diffusion Fe (a or BCC) 1.1 x 10- 87,400 Fe (y or FCC) 2.3 x 10- 148,000 Fe (a or BCC) 5.0 x 10-7 77,000 N° Fe (y or FCC) 9.1 x 10- 168,000 Self-Diffusion Fe Fe (a or BCC)“ Fe (y or FCCY 2.8 x 10- 251,000 Fe 5.0 x 10- 284,000 Cu (FCC) Al (FCC) Cu 2.5 x 10- 200,000 Al 2.3 x 10- 144,000 Mg Mg (HCP) 1.5 x 10 136,000 Zn Zn (HCP) 1.5 x 10- 94,000 Mo Mo (BCC) 1.8 x 10- 461,000 Ni Ni (FCC) 1.9 x 10 285,000 Interdiffusion (Vacancy) Cu (FCC) Zn (HCP) Zn 2.4 x 10- 189,000 Cu 2.1 x 10- 124,000 Cuf Al (FCC) 6.5 x 10- 136,000 Mg Al (FCC) 1.2 x 10- 130,000 Cuf Ni (FCC) 2.7 x 10- 256,000 Ni Cu (FCC) 1.9 x 10- 230,000 *There are two sets of diffusion coefficients for iron because iron experiences a phase trans- formation at 912°C; at temperatures less than 912°C, BCC a-iron exists; at temperatures higher than 912°C, FCC y-iron is the stable phase.
Transcribed Image Text:Table 5.2 A Tabulation of Diffusing Species D(m²/s) Host Metal QJ/mol) Diffusion Data Interstitial Diffusion Fe (a or BCC) 1.1 x 10- 87,400 Fe (y or FCC) 2.3 x 10- 148,000 Fe (a or BCC) 5.0 x 10-7 77,000 N° Fe (y or FCC) 9.1 x 10- 168,000 Self-Diffusion Fe Fe (a or BCC)“ Fe (y or FCCY 2.8 x 10- 251,000 Fe 5.0 x 10- 284,000 Cu (FCC) Al (FCC) Cu 2.5 x 10- 200,000 Al 2.3 x 10- 144,000 Mg Mg (HCP) 1.5 x 10 136,000 Zn Zn (HCP) 1.5 x 10- 94,000 Mo Mo (BCC) 1.8 x 10- 461,000 Ni Ni (FCC) 1.9 x 10 285,000 Interdiffusion (Vacancy) Cu (FCC) Zn (HCP) Zn 2.4 x 10- 189,000 Cu 2.1 x 10- 124,000 Cuf Al (FCC) 6.5 x 10- 136,000 Mg Al (FCC) 1.2 x 10- 130,000 Cuf Ni (FCC) 2.7 x 10- 256,000 Ni Cu (FCC) 1.9 x 10- 230,000 *There are two sets of diffusion coefficients for iron because iron experiences a phase trans- formation at 912°C; at temperatures less than 912°C, BCC a-iron exists; at temperatures higher than 912°C, FCC y-iron is the stable phase.
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