Changes

As the phase diagram shows, copper-chromium has a similar hardening profile compared to CuBe <xr id="fig:Copper corner of the copper-chromium phase diagram for up to 0.8 wt% chromium"/>(Fig. 5.32). In the hardened stage CuCr has limitations to work hardening. Compared to copper it has a better temperature stability with good electrical conductivity. Hardness and electrical conductivity as a function of cold working and precipitation hardening conditions are illustrated in [[#figures8|(Figs. 43 – 75)]]Figs. 5.33-5.35 '', (Tables Tab. 5.19 and Tab. 5.20)''.

Fig. 5.33: Softening of precipitation-hardened and subsequently cold worked CuCr1 after 4hrs annealing<div id="figures8">[[File<xr id="fig:Softening of precipitation hardened and subsequently cold worked CuCr1"/> Fig. 5.jpg|right|thumb|33: Softening of precipitation-hardened and subsequently cold worked CuCr1 after 4hrs annealing]]

Fig. 5.34 a<xr id="fig: Electrical conductivity of precipitation hardened CuCr 0.6 as "/> Fig. 5.34 a function of annealing conditions[[File:Electrical conductivity of precipitation hardened CuCr 0.6.jpg|right|thumb|Electrical conductivity of precipitation hardened CuCr 0.6 as a function of annealing conditions]]

<xr id="fig:Hardness of precipitation hardened CuCr 0.6"/> Fig. 5.34 b: Hardness of precipitation hardened CuCr 0.6 as a function of annealing conditions[[File<xr id="fig:Hardness Electrical conductivity and hardness of precipitation hardened CuCr 0.6"/> Fig. 5.35: Electrical conductivity and hardness of precipitation hardened CuCr 0.jpg|right|thumb|6 after cold working</div> <div class="multiple-images"><figure id="fig:Softening of precipitation hardened and subsequently cold worked CuCr1"> </figure> <figure id="fig:Electrical conductivity of precipitation hardened CuCr 0.6"> </figure> <figure id="fig:Hardness of precipitation hardened CuCr 0.6 as a function "></figure>  <figure id="fig:Electrical conductivity and hardness of annealing conditions]]precipitation hardened CuCr 0.6"> </figure> </div><div class="clear"></div>