scholarly journals Effects of the Amount of Retained Austenite on the Microstructures and Mechanical Properties of a Precipitation Hardening Martensitic Stainless Steel

1998 ◽  
Vol 84 (5) ◽  
pp. 363-368 ◽  
Author(s):  
Hideki NAKAGAWA ◽  
Toru MIYAZAKI
Keyword(s):  
Mechanical Properties ◽  
Stainless Steel ◽  
Retained Austenite ◽  
Precipitation Hardening ◽  
Martensitic Stainless Steel ◽  
Microstructures And Mechanical Properties

Mechanical Properties of Martensitic Stainless Steel (AISI420) Subjected to Conventional and Cryogenic Treatments

2020 ◽  
Vol 38 (8A) ◽  
pp. 1096-1105
Author(s):  
Hareer S. Mohamed ◽  
Ali H. Ataiwi ◽  
Jamal J. Dawood
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Stainless Steel ◽  
Corrosion Resistance ◽  
Retained Austenite ◽  
Martensitic Stainless Steel ◽  
Heat Treatments ◽  
Soaking Time ◽  
Hardness Values

Martensitic Stainless Steel (AISI420) MSS are vastly used because of their properties conventional which mix good mechanical and corrosion resistance. Cryogenic up to -196°C for different soaking time and heat treatments at (1000,500,200°C) for 15 minutes is one of the ways that used to enhance mechanical properties of these steels by means transformation of retained austenite, deformation regarding martensite then carbide refinement. the result showed an increase in tensile strength of samples that were treated cryogenically and tempered at 500°C was 933 (MPa) compared to samples that just treated conventionally in austenitizing and tempering at the same temperature that was 880 (MPa). The hardness values increased considerably to 414HV and 321 HV for the specimen that tempered at 200°C and 500°C respectively, precipitation of small carbides was observed that this is responsible for the improvement in the mechanical properties of the material.

Aging Behavior in 15-5 PH Precipitation Hardening Martensitic Stainless Steel

2012 ◽  
Vol 710 ◽  
pp. 483-488 ◽  
Author(s):  
V. Anil Kumar ◽  
M.K. Karthikeyan ◽  
Rohit Kumar Gupta ◽  
F. Gino Prakash ◽  
P. Ram Kumar
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Stainless Steel ◽  
Precipitation Hardening ◽  
Martensitic Stainless Steel ◽  
Low Carbon ◽  
Aged Condition ◽  
Aging Behavior ◽  
Peak Aged Condition ◽  
Peak Aged

15-5 PH stainless steel is strengthened by precipitation of copper rich phases in a low carbon body centred cubic (b.c.c) lath martensitic matrix. Microstructures developed in aerospace grade 15-5PH precipitation-hardened stainless steel with different aging heat treatments have been studied. An attempt has been made to correlate the microstructural observations with the mechanical properties in different aging regimes. The overaging treatment imparts excellent ductility with a compromise in strength in peak aged condition to overaged condition the tune of 300 MPa in both tensile and yield strength. Hardness and tensile strength showed a similar decreasing trend with increase in aging temperature.

LESCALLOY 15-5 VAC-ARC

Alloy Digest ◽  
1991 ◽  
Vol 40 (8) ◽  
Keyword(s):  
Stainless Steel ◽  
Precipitation Hardening ◽  
Martensitic Stainless Steel ◽  
Heat Treating ◽  
Gas Content ◽  
Vacuum Arc ◽  
Steel Company ◽  
Delta Ferrite ◽  
Clean Steel ◽  
Vacuum Arc Remelting

Abstract LESCALLOY 15-5 VAC-ARC is a precipitation hardening martensitic stainless steel with minimal delta ferrite. Vacuum arc remelting in the production of the alloy provides a low gas content, clean steel with optimum transverse properties. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SS-522. Producer or source: Latrobe Steel Company.

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