上游充通大￥ 160U片 SHANGHAI JIAO TONG UNIVERSITY 1400h 1200外 11186 266.3 10.5 42. B 包 1000 Points: A:Tm of Pt 800 B:Tm of Ag P:Peritectic point。 400LE 3 60 The alloy at D is called peritectic alloy(包晶合金)% >Line:ACB:liquid phase line ADPB:solid phase line DE:solid solution curce of Ag in Pt PF:solid solution curce of Pt in Ag DPC:horizontal,called peritectic line. The alloys on this line is under peritectic reaction:Lc ap →BP Regions:three single phase regione:L、a、B a:solid solution of Ag in Pt B:solid solution of Pt in Ag three double phase regions:L+a、L+B、a+B。A Points：A：Tm of Pt B：Tm of Ag P：Peritectic point。 The alloy at D is called peritectic alloy(包晶合金) Line：ACB：liquid phase line ADPB：solid phase line DE：solid solution curce of Ag in Pt PF： solid solution curce of Pt in Ag DPC：horizontal, called peritectic line. The alloys on this line is under peritectic reaction: LC + αD →βP Regions： three single phase regione： L、α、β α：solid solution of Ag in Pt β：solid solution of Pt in Ag three double phase regions：L+α、L+β、α+β。 B