Choice of a getter for the high-temperature mechanical testing of niobium and its alloys

1975 ◽  
Vol 7 (4) ◽  
pp. 446-448
Author(s):  
L. Z. Polyak ◽  
A. D. Rann ◽  
A. G. Arakelov ◽  
A. E. Kissil'
Keyword(s):  
High Temperature ◽  
Mechanical Testing

High Temperature Mechanical Testing of Metals

2018 ◽  
pp. 1-38 ◽  
Author(s):  
Birgit Skrotzki ◽  
Jürgen Olbricht ◽  
Hans-Joachim Kühn
Keyword(s):  
High Temperature ◽  
Mechanical Testing

scholarly journals Comparison of Mechanical and Microstructural Properties of as-Cast Al-Cu-Mg-Ag Alloys: Room Temperature vs. High Temperature

Crystals ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 1330
Author(s):  
Muhammad Farzik Ijaz ◽  
Mahmoud S. Soliman ◽  
Ahmed S. Alasmari ◽  
Adel T. Abbas ◽  
Faraz Hussain Hashmi
Keyword(s):  
Mechanical Properties ◽  
High Temperature ◽  
Mechanical Testing ◽  
Tensile Testing ◽  
Room Temperature ◽  
Elevated Temperatures ◽  
Microstructural Properties ◽  
Testing Environments ◽  
Mechanical And Microstructural Properties ◽  
Mg Content

Unfolding the structure–property linkages between the mechanical performance and microstructural characteristics could be an attractive pathway to develop new single- and polycrystalline Al-based alloys to achieve ambitious high strength and fuel economy goals. A lot of polycrystalline as-cast Al-Cu-Mg-Ag alloy systems fabricated by conventional casting techniques have been reported to date. However, no one has reported a comparison of mechanical and microstructural properties that simultaneously incorporates the effects of both alloy chemistry and mechanical testing environments for the as-cast Al-Cu-Mg-Ag alloy systems. This preliminary prospective paper presents the examined experimental results of two alloys (denoted Alloy 1 and Alloy 2), with constant Cu content of ~3 wt.%, Cu/Mg ratios of 12.60 and 6.30, and a constant Ag of 0.65 wt.%, and correlates the synergistic comparison of mechanical properties at room and elevated temperatures. According to experimental results, the effect of the precipitation state and the mechanical properties showed strong dependence on the composition and testing environments for peak-aged, heat-treated specimens. In the room-temperature mechanical testing scenario, the higher Cu/Mg ratio alloy with Mg content of 0.23 wt.% (Alloy 1) possessed higher ultimate tensile strength when compared to the low Cu/Mg ratio with Mg content of 0.47 wt.% (Alloy 2). From phase constitution analysis, it is inferred that the increase in strength for Alloy 1 under room-temperature tensile testing is mainly ascribable to the small grain size and fine and uniform distribution of θ precipitates, which provided a barrier to slip by deaccelerating the dislocation movement in the room-temperature environment. Meanwhile, Alloy 2 showed significantly less degradation of mechanical strength under high-temperature tensile testing. Indeed, in most cases, low Cu/Mg ratios had a strong influence on the copious precipitation of thermally stable omega phase, which is known to be a major strengthening phase at elevated temperatures in the Al-Cu-Mg-Ag alloying system. Consequently, it is rationally suggested that in the high-temperature testing scenario, the improvement in mechanical and/or thermal stability in the case of the Alloy 2 specimen was mainly due to its compositional design.

Mechanical testing of cordierite porous ceramics using high temperature diametral compression

2010 ◽  
Vol 45 (18) ◽  
pp. 5109-5117 ◽  
Author(s):  
M. L. Sandoval ◽  
M. H. Talou ◽  
A. G. Tomba Martinez ◽  
M. A. Camerucci
Keyword(s):  
High Temperature ◽  
Mechanical Testing ◽  
Porous Ceramics ◽  
Diametral Compression

Mechanical Testing of Dual Alloy Inertia Friction Welded Shafts

2006 ◽  
Vol 3-4 ◽  
pp. 131-140 ◽  
Author(s):  
William S. Robotham ◽  
Thomas H. Hyde ◽  
Edward J. Williams ◽  
Paul Brown ◽  
Ian R. McColl ◽  
...  
Keyword(s):  
High Temperature ◽  
Mechanical Testing ◽  
Power Transmission ◽  
Dissimilar Materials ◽  
High Strength ◽  
Welding Parameters ◽  
High Temperature Alloy ◽  
Testing Program ◽  
Temperature Performance ◽  
Strength Alloy

The development of aeroengines with increasing thrust capabilities requires the development of shaft technology to deal with this greater power transmission, whilst still restricting their dimensions and weight. Modern aerospace drive shafts are predominantly of a single-alloy design and significant benefits could be obtained from using a dual alloy shaft, where a high temperature alloy is used at the turbine, i.e. hot, end of the shaft and a high strength alloy is used for the spline end of the shaft, where high strength is required, rather than high temperature performance. Whilst the processes of joining dissimilar materials are widely used the evolution of the joint and its strength characteristics are not fully understood. A program of research has been instigated to lead to an improved understanding of friction welds and their behaviour under monotonic and cyclic loadings with the overall objective to establish confidence in the welding parameters for these material combinations and the associated post-weld heat treatments. This paper presents an overview of the mechanical testing program and the aims of this work, illustrated with some examples from the monotonic and cyclic test work carried out on inertia friction welded dual alloy shaft components.

High-temperature bulge-test setup for mechanical testing of free-standing thin films

2003 ◽  
Vol 74 (3) ◽  
pp. 1383-1385 ◽  
Author(s):  
A. J. Kalkman ◽  
A. H. Verbruggen ◽  
G. C. A. M. Janssen
Keyword(s):  
Thin Films ◽  
High Temperature ◽  
Mechanical Testing ◽  
Bulge Test ◽  
Free Standing ◽  
Test Setup
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