EMPA (Swiss Federal Laboratories for Materials Testing and Research),
Laboratory for Surface- and Joining Technology,
Added to MAP: July 2003.
Calculates the yield strength of high nitrogen austenitic stainless steels.
MAP\_STEEL\_N_AUST_YS calculates yield strength of high nitrogen austenitic stainless steel as a function of test temperature, nitrogen content and grain size.
The calculations are valid for austenitic stainless steels with an iron content between 60 and 70% by weight. It is assumed that the nitrogen is in solid solution.
Applicable test temperatures are between 4 and 625 Kelvin.
T - integer
test temperature (Kelvin).
N - real
nitrogen concentration (weight percent).
D - real
grain size (mm).
y - real
yield strength (MPa).
The applicability of the program is given under the following conditions:
1. the iron content is in the region of 60 and 70% by weight
2. the nitrogen is in solid solution
3. the test temperature is between 4 and 625 Kelvin
295 (test temperature)
0.8 (nitrogen concentration)
0.1 (grain size)
the yield strength is 664.97 MPa
yield strength, nitrogen, austenitic, stainless
MAP originated from a joint project of the National Physical Laboratory and the University of Cambridge.