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→5.1.4.2 Copper-Tin Alloys (Tin Bronze)
Figure 5.10 shows the copper rich side of the phase diagram for the CuSn system. The mechanical property values achieved by cold forming are superior to these of the brass alloys ''(Fig. 5.11)''. They increase significantly with increasing Sn content. The work hardening and softening
behavior are shown for the example of CuSn8 in Figures 5.12 and 5.13. The stress relaxation properties for CuSn alloys are good for up to 100°C, deteriorate however quickly for temperatures above 150°C.
Fig. 5.9: Softening of CuZn36 after 3 hrs annealing after 50% cold working
Fig. 5.10: Phase diagram of the Cu-Sn system for the range of 0 – 30 wt% Sn.
Table 5.7: Physical Properties of Selected Copper-Zinc Alloys (2 teile!)
Table 5.8: Mechanical Properties of Selected Copper-Zinc Alloys (2 teile!)
Table 5.9: Physical Properties of Copper-Tin Alloys (2 teile!)
Table 5.10: Mechanical Properties of Copper-Tin Alloys (2 teile!)
Fig. 5.11: Mechanical properties of tin bronze depending on the tin content (cold working 0 and 50%)
Fig. 5.12: Strain hardening of CuSn8 by cold working
Fig. 5.13: Softening of CuSn8 after 3 hrs annealing after 50% cold working