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grain growth

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240117
EISBN: 978-1-62708-251-8
... Abstract Annealing, a heat treatment process, is used to soften metals that have been hardened by cold working. This chapter discusses the following three distinct processes that can occur during annealing: recovery, recrystallization, and grain growth. The types of processes that occur during...
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Published: 01 December 2008
Fig. 9.3 The rate of grain growth of pure iron. The parameters such as the grain-boundary diffusion coefficient the are same as in Exercise 5.16 . More
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Published: 01 August 2015
Fig. 5.29 Microphotographs of grain sizes. Austenite grain growth in a normal 0.5% C hypoeutectoid steel (silicon deoxidized). 180 HV steel, 0.50C-0.06Si-0.7Mn (wt%). Picral etch. (a) Austenitized for 1 h at 850 °C, cooled at 300 °C/h. Austenite grain size, ASTM No. 5. 100×. (b) Austenitized More
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Published: 01 January 2015
Fig. 5.25 Effect of annealing temperature on grain size of Ti-5Al-2.5Sn. Grain growth is very rapid at the beta transus temperature (1015 °C, or 1860 °F) and higher. More
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Published: 01 August 1999
Fig. 4.8 (Part 1) Critical grain growth during subcritical annealing of low-carbon steel. Rimming grade. 0.09C-0.005Si-0.43Mn (wt%). Annealed 2 h at 650 °C after tensile elongation of: (a) 2%, (b) 5%, (c) 8%, (d) 15%, (e) 20%, and (f) 30%. All etched in 3% nital. 100×. Figure 4.7 More
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Published: 01 August 1999
Fig. 4.8 (Part 2) Critical grain growth during subcritical annealing of low-carbon steel. Rimming grade. 0.09C-0.005Si-0.43Mn (wt%). Annealed 2 h at 650 °C after tensile elongation of: (a) 2%, (b) 5%, (c) 8%, (d) 15%, (e) 20% and (f) 30%. All etched in 3% nital. 100×. Figure 4.7 More
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Published: 01 August 1999
Fig. 8.8 (Part 1) Austenite grain growth in a normal 0.5% C hypoeutectoid steel (silicon deoxidized). 0.50C-0.06Si-0.7Mn (wt%). (a) Austenitized for 1 h at 850 °C, cooled at 300 °C/h. Austenite grain size: ASTM No. 5. 180 HV. Picral. 100×. (b) Austenitized for 1 h at 900 °C, cooled at 300 More
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Published: 01 August 1999
Fig. 8.8 (Part 3) Austenite grain growth in a normal 0.5% C hypoeutectoid steel (silicon deoxidized). 0.50C-0.06Si-0.7Mn (wt%). (a) Austenitized for 1 h at 850 °C, cooled at 300 °C/h. Austenite grain size: ASTM No. 5. 180 HV. Picral. 100×. (b) Austenitized for 1 h at 900 °C, cooled at 300 More
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Published: 01 August 1999
Fig. 8.9 (Part 1) Austenitic grain growth in a normal low-carbon (0.15% C) hypoeutectoid steel. 0.17C-0.41Mn-0.06Si (wt%). (a) Austenitized at 850 °C, cooled at 300 °C/h. 105 HV. Nital. 100×. (b) Austenitized at 850 °C, cooled at 300 °C/h. 105 HV. Picral. 100×. (c) Austenitized at 900 °C More
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Published: 01 August 1999
Fig. 8.9 (Part 2) Austenitic grain growth in a normal low-carbon (0.15% C) hypoeutectoid steel. 0.17C-0.41Mn-0.06Si (wt%). (a) Austenitized at 850 °C, cooled at 300 °C/h. 105 HV. Nital. 100×. (b) Austenitized at 850 °C, cooled at 300 °C/h. 105 HV. Picral. 100×. (c) Austenitized at 900 °C More
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Published: 01 August 1999
Fig. 8.10 (Part 1) Austenitic grain growth in a fine-grained 0.5% C hypoeutectoid steel (aluminum deoxidized). 0.43C-0.23Si-0.75Mn (wt%). (a) Austenitized for 1 h at 850 °C, cooled at 300 °C/h. Grain size: ASTM No. 7. 180 HV. Picral. 100×. (b) Austenitized for 1 h at 900 °C, cooled at 300 More
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Published: 01 August 1999
Fig. 8.10 (Part 2) Austenitic grain growth in a fine-grained 0.5% C hypoeutectoid steel (aluminum deoxidized). 0.43C-0.23Si-0.75Mn (wt%). (a) Austenitized for 1 h at 850 °C, cooled at 300 °C/h. Grain size: ASTM No. 7. 180 HV. Picral. 100×. (b) Austenitized for 1 h at 900 °C, cooled at 300 More
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Published: 01 August 1999
Fig. 8.11 (Part 1) Austenitic grain growth in a 1.4% C hypereutectoid steel (aluminum treated). 1.42C-0.21Si-0.36Mn-0.002Al (wt%). A cm = ~965 °C. (a) Austenitized at 900 °C, cooled at 300 °C/h. 230 HV. Sodium picrate. 100×. (b) Austenitized at 900 °C, cooled at 300 °C/h. 230 HV. Sodium More
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Published: 01 August 1999
Fig. 8.11 (Part 2) Austenitic grain growth in a 1.4% C hypereutectoid steel (aluminum treated). 1.42C-0.21Si-0.36Mn-0.002Al (wt%). A cm = ~965 °C. (a) Austenitized at 900 °C, cooled at 300 °C/h. 230 HV. Sodium picrate. 100×. (b) Austenitized at 900 °C, cooled at 300 °C/h. 230 HV. Sodium More
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Published: 01 November 2007
Fig. 8.10 One-hour grain growth is suppressed by adding very small amounts of niobium to a 1040 steel. Source: Ref 8.6 More
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Published: 01 November 2007
Fig. 8.12 Grain growth in a plain carbon 1018 steel versus a triple-alloyed 8620 steel at 1010 °C (1850 °F). The alloying elements cause a grain-boundary drag effect and inhibit grain growth. Source: Ref 8.7 More
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Published: 01 March 2002
Fig. 6.23 Grain growth vs. time for IN-718 SPF More
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Published: 01 October 2012
Fig. 10.20 Progressive densification and grain growth at several stages of sintering. (a) Initial stage. (b) Intermediate stage. (c) Final stage. (d) Fracture surface. The fracture surface micrograph shows the desirable placement of spherical pores on grain boundaries in the final stage More
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Published: 01 December 2008
Fig. 5.18 The mechanism of the grain growth. Large grains (A) absorb surrounding grains and expand. Small grains (B) shrink and disappear. More
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Published: 01 December 2008
Fig. 5.23 The retardation of grain growth by dispersed particles (the pinning effect decreases the driving force of the growth Δ G ). (a) Dispersion structure vs the single-phase structure. (b) Model for pinning effect More