List of Figures
1-1 |
Worldwide production percentages for the major aluminothermic and electrolytic chromium-metal producers |
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1-2 |
Schematic showing the range of products and the major producing companies that use high-purity chromium |
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1-3 |
Illustrative short-run supply curves under two capacity constraints and two short-run demand curves |
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2-1 |
Schematic of a typical aerospace gas-turbine engine |
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2-2 |
Photomicrographs depicting deep lacy and shallow surface dross |
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2-3 |
Photomicrographs of jet engine turbine blade showing intergranular stress-rupture cracks |
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3-1 |
Simplified flow chart for the production of metallic chromium and chromium compounds |
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3-2 |
Flow sheet for chromium electrodeposition from chrome-alum solutions |
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3-3 |
Principal electrolytic cell reactions in chromium production by the chrome-alum process |
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3-4 |
Flow sheet for production of electrolytic metal by the chrome-alum process |
List of Tables
2-1 |
Parts, Maximum Exposure Temperatures, Specified Materials, and Limiting Properties of an Aircraft Engine |
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2-2 |
Some Major Gas-Turbine Alloys with Significant Chromium-Metal Content |
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2-3 |
Nominal Compositions of Nickel-Base Heat-Resistant Casting Alloys |
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2-4 |
Example of Typical Specification for Chromium Metal |
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3-1 |
Operating Data for Electrowinning of Chromium Metal from Chrome Alum |
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3-2 |
Cell Conditions for the Chromic Acid Process for Electrowinning Chromium Metal |
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6-1 |
Data Used as Basis for Discussion on Scenarios |