Micrograph Library for Very Strong Bainite - Part 1

Francisca G. Caballero, Carlos Garcia Mateo and H. K. D. H. Bhadeshia

The first cheap bulk nanostructured alloy which can be produced in large quantities without capital investment, which can be formed and which can be produced without deformation or rapid heat treatment. The alloy can be made in large sizes (greater than 200 mm) in all directions. The controlling scale of the structure is the same as that of carbon nanotubes, and yet, it is stronger than any carbon nanotube for sizes in excess of 2 mm.

The particular steel examined here has the chemical composition Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt%.

Optical Micrographs

125_25d
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% isothermally transformed at 125°C for 25 days, following austenitisation at 1000°C for 15 min		 125_29d
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% isothermally transformed at 125°C for 29 days, following austenitisation at 1000°C for 15 min		 150_10h1
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% isothermally transformed at 150°C 10h, following austenitisation at 1000°C for 15 min
150_10h2
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% isothermally transformed at 150°C 10h, following austenitisation at 1000°C for 15 min		 150_10h3
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% isothermally transformed at 150°C 10h, following austenitisation at 1000°C for 15 min		 150_18d
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% isothermally transformed at 150°C 18 days, following austenitisation at 1000°C for 15 min
150_18d2
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% isothermally transformed at 150°C 18 daya, following austenitisation at 1000°C for 15 min		 150_1w2
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% isothermally transformed at 150°C 7 days, following austenitisation at 1000°C for 15 min		 150_29d
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% isothermally transformed at 150°C 29 days, following austenitisation at 1000°C for 15 min
150_2w
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% isothermally transformed at 150°C 24 days, following austenitisation at 1000°C for 15 min		 190_1w1
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% isothermally transformed at 190°C for 7 days, following austenitisation at 1000°C for 15 min		 190_1w2
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% isothermally transformed at 190°C for 7 days, following austenitisation at 1000°C for 15 min
190_2w1
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% isothermally transformed at 190°C for 14 days, following austenitisation at 1000°C for 15 min		 190_2w3
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% isothermally transformed at 190°C for 14 days, following austenitisation at 1000°C for 15 min		 190_5d
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% isothermally transformed at 190°C for 5 days, following austenitisation at 1000°C for 15 min
190_6d
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% isothermally transformed at 190°C for 6 days, following austenitisation at 1000°C for 15 min		 190_9d
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% isothermally transformed at 190°C for 9 days, following austenitisation at 1000°C for 15 min		 250_1d1
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% isothermally transformed at 250°C for 1 day, following austenitisation at 1000°C for 15 min
250_1d2
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% isothermally transformed at 250°C for 1 day, following austenitisation at 1000°C for 15 min		 250_1d3
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% isothermally transformed at 250°C for 1 day, following austenitisation at 1000°C for 15 min		 250_1w1
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% isothermally transformed at 250°C for 7 days, following austenitisation at 1000°C for 15 min
250_1w2
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% isothermally transformed at 250°C for 7 days, following austenitisation at 1000°C for 15 min		 250_2w
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% isothermally transformed at 250°C for 14 days, following austenitisation at 1000°C for 15 min		 300_1w1
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% isothermally transformed at 300°C for 7 days, following austenitisation at 1000°C for 15 min
300_1w2
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% isothermally transformed at 300°C for 7 days, following austenitisation at 1000°C for 15 min		 300_2w1
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% isothermally transformed at 300°C for 14 days, following austenitisation at 1000°C for 15 min		 300_2w2
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% isothermally transformed at 300°C for 14 days, following austenitisation at 1000°C for 15 min
350_1w1
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% isothermally transformed at 350°C for 7 days, following austenitisation at 1000°C for 15 min		 350_1w2
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% isothermally transformed at 350°C for 7 days, following austenitisation at 1000°C for 15 min		 400_1w1
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% isothermally transformed at 400°C for 7 days, following austenitisation at 1000°C for 15 min
450_1w1
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% isothermally transformed at 450°C for 7 days, following austenitisation at 1000°C for 15 min		 450_1w2
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% isothermally transformed at 450°C for 7 days, following austenitisation at 1000°C for 15 min		 500_1w
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% isothermally transformed at 500°C for 7 days, following austenitisation at 1000°C for 15 min
comp_190_2w1
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% isothermally transformed at 190°C for 14 days, following austenitisation at 1000°C for 15 min. Compression specimen.		 comp_190_2w2
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% isothermally transformed at 190°C for 14 days, following austenitisation at 1000°C for 15 min. Compression specimen.		 compr_1902w
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% isothermally transformed at 190°C for 14 days, following austenitisation at 1000°C for 15 min. Compression specimen.
compr_1902wa
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% isothermally transformed at 190°C for 14 days, following austenitisation at 1000°C for 15 min. Compression specimen.		 compr_1902wb
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% isothermally transformed at 190°C for 14 days, following austenitisation at 1000°C for 15 min. Compression specimen.		 tem400-1h
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% Austenitised at 1000°C for 15 min. isothermally transformed at 190°C for 14 days, tempered at 400°C for 1 h.
tem400-1h2
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% Austenitised at 1000°C for 15 min. isothermally transformed at 190°C for 14 days, tempered at 400°C for 1 h.		 tem400-1h3
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% Austenitised at 1000°C for 15 min. isothermally transformed at 190°C for 14 days, tempered at 400°C for 1 h.


Transmission Electron Micrographs

Slide1
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% Austenitised at 1000°C for 15 min. isothermally transformed at 190°C for 14 days. 		Slide2
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% Austenitised at 1000°C for 15 min. isothermally transformed at 190°C for 14 days. 		Slide3
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% Austenitised at 1000°C for 15 min. isothermally transformed at 190°C for 14 days.
Slide4
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% Austenitised at 1000°C for 15 min. isothermally transformed at 190°C for 14 days. 		Slide5
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% Austenitised at 1000°C for 15 min. isothermally transformed at 190°C for 14 days. 		Slide6
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% Austenitised at 1000°C for 15 min. isothermally transformed at 190°C for 14 days.
Slide7
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% Austenitised at 1000°C for 15 min. isothermally transformed at 190°C for 14 days. 		Slide8
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% Austenitised at 1000°C for 15 min. isothermally transformed at 190°C for 14 days. 		Slide1_1
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% Austenitised at 1000°C for 15 min. isothermally transformed at 190°C for 14 days, tempered at 400°C for 1 h.
Slide10
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% Austenitised at 1000°C for 15 min. isothermally transformed at 190°C for 14 days, tempered at 400°C for 1 h. 		Slide11
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% Austenitised at 1000°C for 15 min. isothermally transformed at 190°C for 14 days, tempered at 400°C for 1 h. 		Slide12
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% Austenitised at 1000°C for 15 min. isothermally transformed at 190°C for 14 days, tempered at 400°C for 1 h.
Slide13
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% Austenitised at 1000°C for 15 min. isothermally transformed at 190°C for 14 days, tempered at 400°C for 1 h. 		Slide14
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% Austenitised at 1000°C for 15 min. isothermally transformed at 190°C for 14 days, tempered at 400°C for 1 h. 		Slide15
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% Austenitised at 1000°C for 15 min. isothermally transformed at 190°C for 14 days, tempered at 400°C for 1 h.
Slide2_1
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% Austenitised at 1000°C for 15 min. isothermally transformed at 190°C for 14 days, tempered at 400°C for 1 h. 		Slide3_1
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% Austenitised at 1000°C for 15 min. isothermally transformed at 190°C for 14 days, tempered at 400°C for 1 h. 		Slide4_1
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% Austenitised at 1000°C for 15 min. isothermally transformed at 190°C for 14 days, tempered at 400°C for 1 h.
Slide5_1
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% Austenitised at 1000°C for 15 min. isothermally transformed at 190°C for 14 days, tempered at 400°C for 1 h. 		Slide6_1
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% Austenitised at 1000°C for 15 min. isothermally transformed at 190°C for 14 days, tempered at 400°C for 1 h. 		Slide7_1
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% Austenitised at 1000°C for 15 min. isothermally transformed at 190°C for 14 days, tempered at 400°C for 1 h.
Slide8_1
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% Austenitised at 1000°C for 15 min. isothermally transformed at 190°C for 14 days, tempered at 400°C for 1 h. 		Slide9
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% Austenitised at 1000°C for 15 min. isothermally transformed at 190°C for 14 days, tempered at 400°C for 1 h. 		Slide1_2
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% Austenitised at 1000°C for 15 min. isothermally transformed at 190°C for 14 days, tempered at 500°C for 1 h.
Slide2_2
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% Austenitised at 1000°C for 15 min. isothermally transformed at 190°C for 14 days, tempered at 500°C for 1 h. 		Slide1_3
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% Austenitised at 1000°C for 15 min. isothermally transformed at 190°C for 14 days, tempered at 600°C for 1 h. 		Slide2_3
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% Austenitised at 1000°C for 15 min. isothermally transformed at 190°C for 14 days, tempered at 600°C for 1 h.
Slide3_2
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% Austenitised at 1000°C for 15 min. isothermally transformed at 190°C for 14 days, tempered at 600°C for 1 h. 		Slide1_4
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% Austenitised at 1000°C for 15 min. isothermally transformed at 190°C for 30 days. 		Slide2_4
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% Austenitised at 1000°C for 15 min. isothermally transformed at 190°C for 30 days.
Slide3_3
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% Austenitised at 1000°C for 15 min. isothermally transformed at 190°C for 30 days. 		Slide4_2
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% Austenitised at 1000°C for 15 min. isothermally transformed at 190°C for 30 days. 		Slide5_2
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% Austenitised at 1000°C for 15 min. isothermally transformed at 190°C for 30 days.
Slide6_2
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% Austenitised at 1000°C for 15 min. isothermally transformed at 190°C for 30 days. 		Slide7_2
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% Austenitised at 1000°C for 15 min. isothermally transformed at 190°C for 30 days. 		Slide8_2
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% Austenitised at 1000°C for 15 min. isothermally transformed at 190°C for 30 days.
Slide1_5
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% Austenitised at 1000°C for 15 min. isothermally transformed at 190°C for 5 days. 		Slide2_5
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% Austenitised at 1000°C for 15 min. isothermally transformed at 190°C for 5 days. 		Slide3_4
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% Austenitised at 1000°C for 15 min. isothermally transformed at 190°C for 5 days.
Slide4_3
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% Austenitised at 1000°C for 15 min. isothermally transformed at 190°C for 5 days. 		Slide1_6
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% Austenitised at 1000°C for 15 min. isothermally transformed at 300°C for 14 days. 		Slide2_6
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% Austenitised at 1000°C for 15 min. isothermally transformed at 300°C for 14 days.
Slide3_5
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% Austenitised at 1000°C for 15 min. isothermally transformed at 300°C for 14 days. 		Slide4_4
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% Austenitised at 1000°C for 15 min. isothermally transformed at 300°C for 14 days. 		Slide5_3
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% Austenitised at 1000°C for 15 min. isothermally transformed at 300°C for 14 days.
Slide6_3
Fe-0.79C-1.59Si-1.94Mn-0.30Mo-1.33Cr-0.11V wt% Austenitised at 1000°C for 15 min. isothermally transformed at 300°C for 14 days.





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