الفهرس 
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Abstract
Constant load creep and creep-rupture tests have been
~-rf c3r
med using Type 304 auste itic stainless steel at tempe¬:_tures of 550 and 600°C and stresses ranging between 126 and 211 TLIN m-2, Viith creep times up to 8,,000 hours. Analysis of the results showed that the creep behaviour, at both tran¬sient and steady state stages, followed a relation in the form :
(-- ( t ) = t ) + st
where (t) is the total strain at any time t, t is the
limit of the transient creep, r is the transient creep ex,- haustion constant and Es is the steady stake strain rate. The parameters of the equation giving best fit between el--Iperi¬L-nental results and the equation were determined for various test conditions.
Both the steady state strain rate, ~-:s , -.nd the licit of the transient creep) Et, viere found to follow power low stress dependencies, and the stress exponent was determined ir- ea0h case. The results were discussed and compared to the published data.
Using data obtained froc-Ii the present cz.-~periments and the diffusion coefficient data literature a deformation
mechanism map -for Type 304 stainless steel was determined . In such map the range of st2esses and temperatures in which