1957 Volume 21 Issue 8 Pages 504-508
Experiments show that the so-called peritectic structure always appears in all peritectic alloys which have the condition of ‾LS⁄‾SP>I for the relative position of the three phases on the peritectic line and doesn’t appear in ‾LS<‾SP peritectic alloys. The author has discovered that this phenomen depends on the course of the peritectic reaction which results from the diagrammatical meaning of ‾LS⁄‾SP value, and suggested a mechanism of the course of the peritectic reaction from the above mentioned fact. The characteristics of the peritectic reaction which occurs in the binary system can be deduced from the experimental results.