| ‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘ KAWASAKI STEEL TECHNICAL REPORT No.3 ( September 1981 ) ‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘ |
| Development of Hot Rolled Steel Sheet KHN
for Enameling Use Isao Takahashi, Yoshihiro Matsumoto, Isamu Aruga |
|
Synopsis : Effects of Ti and C on fishscale formation and hydrogen diffusivity were examined using hot rolled titanium bearing steels. To clarify the traps for hydrogen, quenching and tempering experiments of iron-titanium-carbon alloys were carried out. It is concluded that hydrogen diffusivity of titanium bearing steels is indicative of thee fishscale suppres-siveness of the steels and that fine coherent TiC particles are main traps for hydrogen. Also the effect of TiC on mechanical properties of steels has been discussed. On the basis of these results, hot rolled sheet KHN for enameling use has been newly developed. Both-sided enameling of the KHN sheet prevents fishscale formation and its sag value is as small as that of cold rolled sheets for enameling. |
| TextiPDF: 8p./302kbj |