Evaluation of high-temperature tensile behavior for metal foils by a novel resistance heating assisted tensile testing system using samples with optimized structures

Replication of metallic high-aspect-ratio microscale structures (HARMS) by compression molding has been demonstrated recently. Molding replication of metallic HARMS can potentially lead to low-cost fabrication of a wide variety of metal-based microdevices. Understanding the mechanics of metal micromolding is critical for assessing the capabilities and limitations of this replication technique. This paper presents results of instrumented micromolding of Al. Measured molding response was rationalized with companion high-temperature tensile testing of Al using a simple mechanics model of the micromolding process. The present results suggest that resisting pressure on the mold insert during micromolding is governed primarily by the yield stress of the molded metal at the molding temperature and a frictional traction on the sides of the insert. The influence of strain rate is also considered.

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High Temperature Tensile Behavior of FeO Scale

Journal of the Japan Institute of Metals and Materials ◽

10.2320/jinstmet1952.64.5_291 ◽

2000 ◽

Vol 64 (5) ◽

pp. 291-294 ◽

Cited By ~ 4

Author(s):

Yasuyoshi Hidaka ◽

Takahisa Nakagawa ◽

Toshirou Anraku ◽

Nobuo Ootsuka

Keyword(s):

High Temperature ◽

Tensile Behavior ◽

High Temperature Tensile

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Effect of Mo Addition on Room and High Temperature Tensile Behavior of Al-Si-Cu-Mg Alloy in As-Cast and Heat-Treated Conditions

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.1155.71 ◽

2019 ◽

Vol 1155 ◽

pp. 71-79

Author(s):

Mohammadreza Zamani ◽

Stefania Toschi ◽

Alessandro Morri ◽

Lorella Ceschini ◽

Salem Seifeddine

Keyword(s):

High Temperature ◽

Tensile Behavior ◽

Mg Alloy ◽

High Melting Point ◽

Treated Condition ◽

Heat Treated ◽

Heat Treated Condition ◽

High Temperature Tensile ◽

Negligible Influence

This study focuses on the role of Mo addition on the mechanical properties of an Al-Si-Cu-Mg alloy in as-cast and heat-treated condition at ambient and elevated temperature. Addition of 0.4 to 0.6 wt.% Mo forms Mo-bearing dispersoid particles which have a relatively high melting point and improve high temperature tensile strength. Ductility suffered in the presence of Mo-bearing particles. Trace addition of Mo up to 0.6 wt.% has a negligible influence on the yield strength and hardness of Al-Si-Cu-Mg alloy in as-cast and heat-treated conditions at ambient temperature and 250 °C.

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