Dislocation Glide in Precipitation Hardened Materials. Tensile Tests in HVEM

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Description: Thin foils of two classes of precipitation strenghtened materials have been plastically deformed in a high voltage electron microscope: 1. copper, hardened by cobalt-rich precipitates, 2. two commercial nickel-base superalloys, strenghtened by '-particles. During the deformation the glide of dislocations has been recorded on video tape. On the basis of these tapes, the present film has been produced. A general introduction into the mechanisms of precipitation hardening has been added.
Duration: 15 mins 41 secs
Director: Eckhard Nembach (Münster); Volker Ruth (Oldenburg); Sian Takeuchi (Tokio); Kunio Suzuki (Tokio); Masaki Ichihara (Tokio)
Credits: Year of publication: 1988
Year: 1986
Subjects: Metals, Atomic structure, Materials engineering, Crystallography
Segment 1: Often, the strength of material can be raised by precipitation hardening. Coherent Precipitates (two examples).
Segment 2: Misfit Hardening of various cobalt sheets. Cross-slip and the effects of stacking faults can be seen on some examples. Gamma prime particles.
Segment 3: A series of tensile tests on various samples of the nickel-based super-alloy nimonic PE16.
Segment 4: A series of tests on various samples of nimonic 105. Credits.
Persistent URL: http://edina.ac.uk/purl/isan/0014-0000-3413-0000-0-0000-0000-0
Written and compiled by the British Universities Film & Video Council © BUFVC 2005
Subject classification by University of Edinburgh Library © 2006