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THE ROLE OF THE MICROSTRUCTURAL COMPONENTS IN A THREE-STEP HEAT CYCLED, LOW CARBON Fe-6Ni ALLOY
| Content Provider | Semantic Scholar |
|---|---|
| Copyright Year | 1981 |
| Abstract | Physical Metallurgy The role of each microstructural component (i.e., ultrafine-gra.in, stable retained austenite, and tempered martensite matrix) in a three-step heat cycled, low carbon Fe-6Ni cryogenic alloy, which had shown excellent cryogenic properties, were studied independently through investigations of the-mechanical properties and transformational behaviors of two simulated alloys. As a result, it was found that each component contributed to overall properties of the cryogenic alloy uniquely as follows: (l) The ductilebrittle transition temperature is suppressed effectiv-ely by grain refinement. (2) Stable retained austenite in ferritic steel increases the cryogenic toughness by grain refinement. (3) The martensite matrix of ferritic steel affects the Charpy upper shelf energy alone. It also was found that an excellent cryogenic toughness \'las obtainable by the combined effects of each microstructural component of the alloy. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://cloudfront.escholarship.org/dist/prd/content/qt6k0157t7/qt6k0157t7.pdf?t=p079ft |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
