鉄基ろう材を用いた耐熱鋼の液相拡散接合
1985 年 49 巻 4 号 p. 285-290
詳細
1985 年 49 巻 4 号 p. 285-290
This paper discusses TLP (Transient Liquid Phase) bonding for heat resistant steels, SUS304 and 12Cr-Mo-V-W steel. Two specially designed Fe-base interlayer alloys, which were produced by rapid quenching from the liquid state, were used in this experiment.
SUS304 TLP bonds using 15.7Cr-6Ni-2.8B-Fe interlayer alloy show microstructure and composition equivalent to those for the base metal. Also, the TLP bonds mechanical properties are superior to bonds using commercial Ni-base interlayer alloy (15.0Cr-4.0B-Ni).
12Cr-Mo-V-W steel TLP bonds using 12.0Cr-3.8B-Fe interlayer alloy show almost the same martensite structure as the base metal in contrast to that for Ni-base interlayer alloy, which remains austenitic, even after being diffusion treated at 1323 K for 172.8 ks. Hardness and stress-rupture properties for the bounds using Fe-base interlayer alloy are also equal to those for the base metal.
