In Situ Environmental Scanning Electron Microscopy (ESEM) of Semi-Solid Samples

A.J. Smith; H.V. Atkinson; S.V. Hainsworth; H.B. Dong; R. Haghayeghi

doi:10.4028/www.scientific.net/SSP.116-117.700

Paper Titles

Microstructural Evolution and Deformation Behavior of Stainless Steel in Semi-Solid State
p.681

Series Production of Thixoformed Steel Parts
p.686

Design, Construction and Performance of Silicon Nitride Tool Parts in Steel Thixoforming
p.690

Development of a Self-Heating Ceramic Tool for the Thixoextrusion of High Melting Point Alloys
p.696

In Situ Environmental Scanning Electron Microscopy (ESEM) of Semi-Solid Samples
p.700

Alumina PVD Tool Coatings for the Use in Semi Solid Metal Forming of Steel
p.704

Steels with Different Carbon Content for High Pressure Die Casting in Semisolid State
p.708

Steel Grades Adapted to the Thixoforging Process: Metallurgical Structures and Mechanical Properties
p.712

Thixoforming of Carbon Steels: Inductive Heating and Process Control
p.717

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In Situ Environmental Scanning Electron Microscopy (ESEM) of Semi-Solid Samples

Abstract:

The ESEM (Environmental Scanning Electron Microscope) is an instrument that circumvents a limitation of conventional SEM, in that samples can be examined in a gaseous atmosphere rather than a vacuum. With a heating stage, dynamic processes can be observed in situ at high temperature. In this study, A201 aluminium alloy samples with globular structures have been examined in the semisolid region. In addition, a manipulator has been installed onto the heating stage to allow the probing of semi-solid surfaces. The paper shows the potential for manipulating semi-solid materials in order to better understand thixotropic phenomena.