Mechanical properties of powder metallurgy duplex stainless steels

1997 ◽  
Vol 13 (2) ◽  
pp. 103-109 ◽  
Author(s):  
E. Hämäläinen ◽  
A. Laitinen ◽  
H. Hänninen ◽  
J. Liimatainen
Keyword(s):  
Mechanical Properties ◽  
Powder Metallurgy ◽  
Stainless Steels ◽  
Duplex Stainless Steels

Hardening of Aged Duplex Stainless Steels by Spinodal Decomposition

2004 ◽  
Vol 10 (3) ◽  
pp. 349-354 ◽  
Author(s):  
F. Danoix ◽  
P. Auger ◽  
D. Blavette
Keyword(s):  
Mechanical Properties ◽  
Impact Toughness ◽  
Spinodal Decomposition ◽  
Stainless Steels ◽  
Aging Process ◽  
Atom Probe ◽  
Duplex Stainless Steels ◽  
Detailed Knowledge ◽  
Iron Chromium

Mechanical properties, such as hardness and impact toughness, of ferrite-containing stainless steels are greatly affected by long-term aging at intermediate temperatures. It is known that the α-α′ spinodal decomposition occurring in the iron–chromium-based ferrite is responsible for this aging susceptibility. This decomposition can be characterized unambiguously by atom probe analysis, allowing comparison both with the existing theories of spinodal decomposition and the evolution of some mechanical properties. It is then possible to predict the evolution of hardness of industrial components during service, based on the detailed knowledge of the involved aging process.

Characterization of Dissimilar Welded Joints Between Austenitic and Duplex Stainless Steel Grades for Liquid Tank Applications

2018 ◽  
Author(s):  
G. Ubertalli ◽  
M. Ferraris ◽  
P. Matteis ◽  
D. Di Saverio
Keyword(s):  
Mechanical Properties ◽  
Stainless Steel ◽  
Austenitic Stainless Steel ◽  
Stainless Steels ◽  
Welded Joints ◽  
Industrial Applications ◽  
Duplex Stainless Steels ◽  
Steel Pipes ◽  
Steel Grades ◽  
Welding Processes

Lean duplex stainless steels have similar corrosion and better mechanical properties than the austenitic grades, which ensure their extensive spreading in industrial applications as a substitute of austenitic grades. In the construction of liquid tanks, however, it is often necessary to weld such steels with a range of fittings which are commonly fabricated with austenitic stainless steel grades. Therefore, this paper examines dissimilar welded joints between LDX 2101 (or X2CrMnNiN22-5-2) lean duplex stainless steels plates and austenitic stainless steel pipes, carried out by different arc welding processes. The investigation focuses on the correlation between the welding procedures and the microstructural and mechanical properties of the welded joints.

scholarly journals Effect of aging temperature on phase decomposition and mechanical properties in cast duplex stainless steels

2017 ◽  
Vol 690 ◽  
pp. 365-377 ◽  
Author(s):  
Sarah Mburu ◽  
R. Prakash Kolli ◽  
Daniel E. Perea ◽  
Samuel C. Schwarm ◽  
Arielle Eaton ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Stainless Steels ◽  
Aging Temperature ◽  
Duplex Stainless Steels ◽  
Phase Decomposition
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