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. 3 – 7)]] Figs. 5.33-5.35 '', <xr id="tab:tab5.19"/> (Tables 5.19 ) and <xr id="tab:tab5.20"/> (Tab. 5.20)''.

<div id="figures5"><xr id="fig:Softening of precipitation hardened and subsequently cold worked CuCr1"/> Fig. 5.33: Softening of precipitation-hardened and subsequently cold worked CuCr1 after 4hrs annealing <xr id="fig:Electrical conductivity of precipitation hardened CuCr 0.6"/> Fig. 5.34 a: 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 <xr id="fig:Electrical conductivity and hardness of precipitation hardened CuCr 0.6"/> Fig. 5.35: Electrical conductivity and hardness of precipitation hardened CuCr 0.6 after cold working</div> <div class="multiple-images"><figure id="fig:Softening of precipitation hardened and subsequently cold worked CuCr1">

Fig. 5.34 a<figure id="fig: Electrical conductivity of precipitation hardened CuCr 0.6 as a function of annealing conditions">

Fig. 5.34 b<figure id="fig: Hardness of precipitation hardened CuCr 0.6 as a function of annealing conditions">

Fig. 5.35<figure id="fig: Electrical conductivity and hardness of precipitation hardened CuCr 0.6 after cold working">