EFFRCT OF STRFSS OX M.\( INKTI/ATTON. 



15 



TUNGSTEN STEEL. 



(c) Change of magnetization by twid under different 



tensions : {oT, t);,^. 



In Swedish iron and tungsten steel, the curves (^l, -)h,t (Figs, 

 8, 10 and 12) are similar to tho.se for ('>/, T)„ tbi- the initial 

 effect. In weak fields where the twisting considerably increases 

 the magnetization, the effect of the first untwisting is very small 



