上游充通大￥ SHANGHAI JIAO TONG UNIVERSITY 9.7 Peritectic phase diagrams Peritectic transformation A liquid phase and a solid phase can combine to form an entirely new solid phase Weight percent carbon 02 0.4 0.6 0.8 liquid+solid。=solid B 1538℃ L+6 0.741493 1 iquid+solid。=solid 1500 5Fe 2.43 0.40 onjeradwBl 6+y L+7 相律？ 1400 1394℃ YFe 1300 2 Fe Atomic percent carbon Figure 9.17 The binary phase diagram for carbon(graphite)and iron. 59.7 Peritectic phase diagrams 5