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→5.1.7.5 Relaxation Behavior
For the measurement of tension relaxation different test procedures are used, based on the ASTM E-32-86.
Fig. 5.44 <xr id="fig:Relaxation behavior of selected copper based materials"/> illustrates the different relaxation behavior of some copper alloys. Good behavior is shown for CuNi3Si1Mg and CuCrSiTi while CuZn30 andCuSn6 exhibit a less favorable relaxation tendency.
<figure id="fig:Relaxation behavior of selected copper based materials">
Fig. 5.44: Relaxation behavior of selected copper-based materials. Starting tension: 100% of spring bending limit; Stress duration: 100 hrs (Wieland)
[[File:Relaxation behavior of selected copper based materials.jpg|right|thumb|Relaxation behavior of selected copper-based materials. Starting tension: 100% of spring bending limit; Stress duration: 100 hrs (Wieland)]]
</figure>
==References==
[[Contact Carrier Materials#References|References]]
