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- R-Phase abstract "The R-phase is a phase found in nitinol. It is a martensitic phase in nature, but is not the martensite that is responsible for the shape memory and superelastic effect. When one uses the word martensite in connection with nitinol, one is invariably referring to the B19' monoclinic martensite phase, not the R-phase. The R-phase competes with martensite, often completely absent, and often appearing during cooling before martensite then giving way to martensite upon further cooling. Similarly, it can be observed during heating prior to reversion to austenite, or may be completely absent. The R-phase to austenite transformation (A-R) is reversible, with a very small hysteresis (typically 2-5 degrees C). It also exhibits a very small shape memory effect, and within a very narrow temperature range, superelasticity. The R-phase transformation (from austenite) occurs between 20 and 40 degrees C in most binary nitinol alloys.The R-phase was observed during the 1970s but generally was not correctly identified until Ling and Kaplow's landmark paper of 1981. The crystallography and thermodynamics of the R-phase are now well understood, but it still creates many complexities in device engineering, leading to the well-worn phrase, "It must be the R-phase" whenever a device fails to perform as expected.".
- R-Phase wikiPageID "24577766".
- R-Phase wikiPageLength "7558".
- R-Phase wikiPageOutDegree "30".
- R-Phase wikiPageRevisionID "672456867".
- R-Phase wikiPageWikiLink Actuator.
- R-Phase wikiPageWikiLink Austenite.
- R-Phase wikiPageWikiLink Category:Nickel_alloys.
- R-Phase wikiPageWikiLink Chromium.
- R-Phase wikiPageWikiLink Clausius–Clapeyron_constant.
- R-Phase wikiPageWikiLink Clausius–Clapeyron_relation.
- R-Phase wikiPageWikiLink Cobalt.
- R-Phase wikiPageWikiLink Cold_work.
- R-Phase wikiPageWikiLink Copper.
- R-Phase wikiPageWikiLink Crystal_structure.
- R-Phase wikiPageWikiLink Differential_scanning_calorimetry.
- R-Phase wikiPageWikiLink Efficient_energy_use.
- R-Phase wikiPageWikiLink Elastic_limit.
- R-Phase wikiPageWikiLink Electrical_resistance.
- R-Phase wikiPageWikiLink Electrical_resistance_and_conductance.
- R-Phase wikiPageWikiLink Electrical_resistivity_and_conductivity.
- R-Phase wikiPageWikiLink Energy_storage.
- R-Phase wikiPageWikiLink Hysteresis.
- R-Phase wikiPageWikiLink Iron.
- R-Phase wikiPageWikiLink Martensite.
- R-Phase wikiPageWikiLink Monoclinic.
- R-Phase wikiPageWikiLink Monoclinic_crystal_system.
- R-Phase wikiPageWikiLink Neutron_diffraction.
- R-Phase wikiPageWikiLink Nickel_titanium.
- R-Phase wikiPageWikiLink Palladium.
- R-Phase wikiPageWikiLink Platinum.
- R-Phase wikiPageWikiLink Pseudoelasticity.
- R-Phase wikiPageWikiLink Resistivity.
- R-Phase wikiPageWikiLink Rhombohedral.
- R-Phase wikiPageWikiLink Shape-memory_alloy.
- R-Phase wikiPageWikiLink Shape_memory.
- R-Phase wikiPageWikiLink Stress_relaxation.
- R-Phase wikiPageWikiLink Superelastic.
- R-Phase wikiPageWikiLink Titanium.
- R-Phase wikiPageWikiLink Trigonal_crystal_system.
- R-Phase wikiPageWikiLink Work_hardening.
- R-Phase wikiPageWikiLink X-ray_crystallography.
- R-Phase wikiPageWikiLink Yield_(engineering).
- R-Phase wikiPageWikiLink Yield_stress.
- R-Phase wikiPageWikiLinkText "R-phase".
- R-Phase hasPhotoCollection R-Phase.
- R-Phase wikiPageUsesTemplate Template:Reflist.
- R-Phase subject Category:Nickel_alloys.
- R-Phase hypernym Phase.
- R-Phase type MilitaryConflict.
- R-Phase comment "The R-phase is a phase found in nitinol. It is a martensitic phase in nature, but is not the martensite that is responsible for the shape memory and superelastic effect. When one uses the word martensite in connection with nitinol, one is invariably referring to the B19' monoclinic martensite phase, not the R-phase. The R-phase competes with martensite, often completely absent, and often appearing during cooling before martensite then giving way to martensite upon further cooling.".
- R-Phase label "R-Phase".
- R-Phase sameAs Faza_R.
- R-Phase sameAs m.080lgxx.
- R-Phase sameAs Q7273270.
- R-Phase sameAs Q7273270.
- R-Phase wasDerivedFrom R-Phase?oldid=672456867.
- R-Phase isPrimaryTopicOf R-Phase.