Irregular shape change of tungsten/matrix interface in tungsten based heavy alloys

摘要

A method for producing an irregular tungsten/matrix interface in tungsten based heavy alloy is disclosed. The method involves a cyclic heat treatment and resintering at above liquidus temperature for tungsten heavy alloys consisting of 80 to 98 weight % tungsten and remainder of matrix phase. The sintered specimens are cyclically heat treated at above 1000° C. and resintered at liquidus temperature of the matrix phase for one minute to 4 hours at a constant temperature.