Mi: .1. MIIR ON THE RECOVERY OF IKON Fl;i >M < >Vi;i;s I ]; \]\ 



13 



will be kept the same for all analogous diagrams, but that for the measurement of 

 load will IKS varied, in order to get the different diagrams suitably spaced. 



Diagram No. IIIu. (Slow recovery with time.) 



I 



r 



.K 



I 



Extensions- diminished <u explained on page if. 

 Scale : - 1 unit - <a f (B of an inch. . ' 1 



Second Example of Slow Recovery with Lapse of Time. 



In Diagram No. FV. there is shown the slow recovery from overstrain of a slightly 

 different quality of steel under somewhat different conditions from those of the last 

 example, while in the accompanying table the figures are given from which the 

 various curves of that diagram have been plotted. The material is that described 

 second on p. 4. 



An examination of the differences given in the first column of the table on p. 15 will 

 show that, although during the primary loading of the specimen, considerable yielding 

 set in at a stress of 22 tons {>er square inch, it was not until almost 29 tons that such 



