Discussion of “Full-range stress-strain curves for stainless steel alloys” [Journal of Constructional Steel Research 2003;59:47–61]

Presented in this paper is an explicit full-range stress-strain relation for stainlesssteel alloys applicable at normal and elevated temperatures. The relation utilizes an approxima-tion of the closed form inversion of a highly accurate three-stage stress-strain relation recentlyobtained from the Ramberg-Osgood equation. The three stage inversion is formulated using anappropriate rational function assumption to approximate the fractional deviation of the actualstress-strain relation from an idealized linear elastic behaviour. The temperature dependenceon the stress-strain relation is then introduced by modifying the basic mechanical propertiesof stainless steel to account for the temperature e ects. The proposed approximate inversionis applicable over the full-range of the stress well beyond the elastic region up to the ultimatestress. Moreover, the inversion can be applied to both tensile and compressive stresses. Theproposed approximate inversion is tested over a wide range of material parameters as well as awide range of temperatures. It is shown that the new expression results in stress-strain curveswhich are both qualitatively and quantitatively in excellent agreement with experimental re-sults and the fully iterated numerical solution of the full-range stress-strain relation for normalas well as elevated temperatures

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Description of stress–strain curves for stainless steel alloys

Materials & Design ◽

10.1016/j.matdes.2015.08.001 ◽

2015 ◽

Vol 87 ◽

pp. 540-552 ◽

Cited By ~ 139

Author(s):

I. Arrayago ◽

E. Real ◽

L. Gardner

Keyword(s):

Stainless Steel ◽

Stress Strain ◽

Steel Alloys

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Explicit full-range stress–strain relations for stainless steel at high temperatures

Journal of Constructional Steel Research ◽

10.1016/j.jcsr.2008.09.001 ◽

2009 ◽

Vol 65 (4) ◽

pp. 794-800 ◽

Cited By ~ 8

Author(s):

K. Abdella

Keyword(s):

Stainless Steel ◽

High Temperatures ◽

Full Range ◽

Stress Strain

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ALLOY 0Cr25Ni6Mo3CuN

Alloy Digest ◽

10.31399/asm.ad.ss0706 ◽

1998 ◽

Vol 47 (2) ◽

Keyword(s):

Fracture Toughness ◽

Stainless Steel ◽

Corrosion Resistance ◽

High Temperature ◽

Physical Properties ◽

Stainless Steels ◽

Austenitic Stainless Steels ◽

Temperature Performance ◽

Steel Research ◽

Oil Refinement

Abstract ALLOY 0Cr25Ni6Mo3CuN is one of four grades of duplex stainless steel that were developed and have found wide applications in China since 1980. In oil refinement and the petrochemical processing industries, they have substituted for austenitic stainless steels in many types of equipment, valves, and pump parts. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on low and high temperature performance, and corrosion resistance as well as forming and joining. Filing Code: SS-706. Producer or source: Central Iron & Steel Research Institute.

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