Development and application of a heated in-situ SEM micro-testing device
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in: Measurement, Jahrgang 110.2017, Nr. November, 01.11.2017, S. 356-366.
Publikationen: Beitrag in Fachzeitschrift › Artikel › Forschung › (peer-reviewed)
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TY - JOUR
T1 - Development and application of a heated in-situ SEM micro-testing device
AU - Fritz, R.
AU - Kiener, D.
PY - 2017/11/1
Y1 - 2017/11/1
N2 - Understanding temperature-dependent deformation behaviour of small material volumes is a key issue in material science, especially the deformation behaviour of bcc metals at elevated temperatures is of particular interest for small-scale structural applications. Therefore, a custom-built heating device consisting of independently resistive-heated sample and indenter, and adaptable to existing micro-indenters, is presented. Key parameters of material selection, design of components and temperature control are outlined. Testing temperatures ranging from room temperature up to ∼300 °C are reached with low drift and without active cooling. To demonstrate the functionality, a variety of in-situ SEM micromechanical experiments were conducted at room temperature and 230 °C, respectively. Examples of micro-pillar compression on single crystalline and ultrafine-grained Chromium, as well as notched cantilever fracture experiments on ultrafine-grained Chromium show assets of this powerful tool, allowing more detailed insights into temperature-dependent deformation and fracture behaviour.
AB - Understanding temperature-dependent deformation behaviour of small material volumes is a key issue in material science, especially the deformation behaviour of bcc metals at elevated temperatures is of particular interest for small-scale structural applications. Therefore, a custom-built heating device consisting of independently resistive-heated sample and indenter, and adaptable to existing micro-indenters, is presented. Key parameters of material selection, design of components and temperature control are outlined. Testing temperatures ranging from room temperature up to ∼300 °C are reached with low drift and without active cooling. To demonstrate the functionality, a variety of in-situ SEM micromechanical experiments were conducted at room temperature and 230 °C, respectively. Examples of micro-pillar compression on single crystalline and ultrafine-grained Chromium, as well as notched cantilever fracture experiments on ultrafine-grained Chromium show assets of this powerful tool, allowing more detailed insights into temperature-dependent deformation and fracture behaviour.
KW - Elevated temperature
KW - Fracture toughness
KW - In-situ testing
KW - Micromechanics
KW - Ultrafine-grained microstructure
UR - http://www.scopus.com/inward/record.url?scp=85024499193&partnerID=8YFLogxK
U2 - 10.1016/j.measurement.2017.07.012
DO - 10.1016/j.measurement.2017.07.012
M3 - Article
AN - SCOPUS:85024499193
VL - 110.2017
SP - 356
EP - 366
JO - Measurement
JF - Measurement
SN - 0263-2241
IS - November
ER -