Examination of the influence of heat treatment on the corrosion resistance of martensitic stainless steels

2014 ◽  
Vol 66 (7) ◽  
pp. 656-662 ◽  
Author(s):  
T. Müller ◽  
A. Heyn ◽  
M. Babutzka ◽  
P. Rosemann
Keyword(s):  
Heat Treatment ◽  
Corrosion Resistance ◽  
Stainless Steels ◽  
Martensitic Stainless Steels

Properties of Low Carbon High Nitrogen Martensitic Stainless Steels

2007 ◽  
Vol 539-543 ◽  
pp. 4975-4980 ◽  
Author(s):  
Shuji Hamano ◽  
Tetsuya Shimizu ◽  
Toshiharu Noda
Keyword(s):  
Heat Treatment ◽  
Corrosion Resistance ◽  
Stainless Steels ◽  
Annealing Treatment ◽  
Induction Melting ◽  
Low Carbon ◽  
High Nitrogen ◽  
Pitting Potential ◽  
Martensitic Stainless Steels ◽  
Treatment Conditions

We produced low carbon and high nitrogen martensitic stainless steels that contain less than 0.1 mass% C and more than 0.45 mass% N, through the pressurized induction melting process, in which nitrogen is introduced from a pressurized N2 atmosphere. The hardness and corrosion resistance of these steels were investigated under various heat treatment conditions. The hardness of these steels after spheroidal annealing treatment is approximately 95HRB and the cold workability is superior to that of AISI440C. The hardness of these steels after quenching and sub-zero treatment is from 53 to 56HRC. In the tempering process, however, high nitrogen steels show secondary hardening at approximately 4 points in HRC compared with the quenched hardness after subzero treatment and have the maximum tempered hardness of 56 to 60HRC around 723K. The corrosion resistance of quenched and tempered materials under 723K is better than AISI304 evaluated by the pitting potential in 3.5% NaCl aqueous solution. Both remnant Cr2N in hardening and precipitated Cr2N in tempering degraded the corrosion resistance of high nitrogen martensitic stainless steels. The best balanced developed steel has a hardness of 60HRC and better corrosion resistance than AISI304 under optimal heat treatment conditions.

AISI No. 633

Alloy Digest ◽  
1981 ◽  
Vol 30 (7) ◽  
Keyword(s):  
Heat Treatment ◽  
Stainless Steel ◽  
Stainless Steels ◽  
High Strength ◽  
Heat Treating ◽  
Corrosion Resistant ◽  
Martensitic Stainless Steels ◽  
Steel Mills ◽  
Temperature Performance ◽  
Structural Applications

Abstract AISI No. 633 is a chromium-nickel-molybdenum stainless steel whose properties can be changed by heat treatment. It bridges the gap between the austenitic and martensitic stainless steels; that is, it has some of the properties of each. Its uses include high-strength structural applications, corrosion-resistant springs and knife blades. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SS-389. Producer or source: Stainless steel mills.

CRUCIBLE 174 SXR

Alloy Digest ◽  
2009 ◽  
Vol 58 (5) ◽  
Keyword(s):  
Fracture Toughness ◽  
Stainless Steel ◽  
Corrosion Resistance ◽  
Austenitic Stainless Steel ◽  
Stainless Steels ◽  
Precipitation Hardening ◽  
High Strength ◽  
Heat Treating ◽  
Martensitic Stainless Steels ◽  
Excellent Corrosion Resistance

Abstract Crucible 174 SXR is a premium-quality precipitation-hardening stainless steel designed for use as rifle barrels. It is a modification of Crucible’s 17Cr-4Ni that offers substantially improved machinability without sacrificing toughness. Its excellent corrosion resistance approaches that of a 300 series austenitic stainless steel, while its high strength is characteristic of 400 series martensitic stainless steels. At similar hardness levels, Crucible 174 SXR offers greater toughness than either the 410 or 416 stainless steels which are commonly used for rifle barrels. This datasheet provides information on composition, physical properties, hardness, and elasticity as well as fracture toughness. It also includes information on forming and heat treating. Filing Code: SS-1034. Producer or source: Crucible Service Centers.

Effect of the Heat Treatment on the Corrosion Resistance of Duplex Stainless Steels

2018 ◽  
Vol 27 (8) ◽  
pp. 3859-3868 ◽  
Author(s):  
Luca Pezzato ◽  
Mattia Lago ◽  
Katya Brunelli ◽  
Marco Breda ◽  
Irene Calliari
Keyword(s):  
Heat Treatment ◽  
Corrosion Resistance ◽  
Stainless Steels ◽  
Duplex Stainless Steels

Corrosion of Martensitic Stainless Steel Weldments

2006 ◽  
pp. 115-124
Keyword(s):  
Corrosion Resistance ◽  
Stainless Steels ◽  
Low Alloy Steels ◽  
Martensitic Stainless Steels ◽  
Tetragonal Crystal ◽  
Tetragonal Crystal Structure ◽  
Hydrogen Induced Cracking ◽  
Stress Corrosion Resistance ◽  
Sulfide Stress ◽  
Alloy Steels

Abstract Martensitic stainless steels are essentially iron-chromium-carbon alloys that possess a body-centered tetragonal crystal structure (martensitic) in the hardened condition. Martensitic stainless steels are similar to plain carbon or low-alloy steels that are austenitized, hardened by quenching, and then tempered for increased ductility and toughness. This chapter provides a basic understanding of grade designations, properties, corrosion resistance, and general welding considerations of martensitic stainless steels. It also discusses the causes for hydrogen-induced cracking in martensitic stainless steels and describes sulfide stress corrosion resistance of type 410 weldments.

Corrosion of Resulfurized Free-Machining Stainless Steels

CORROSION ◽  
1970 ◽  
Vol 26 (12) ◽  
pp. 511-528 ◽  
Author(s):  
MICHAEL HENTHORNE
Keyword(s):  
Heat Treatment ◽  
Corrosion Resistance ◽  
Stainless Steels ◽  
Salt Spray ◽  
High Manganese ◽  
Chromium Alloys ◽  
Residual Sulfur ◽  
High Manganese Steels ◽  
Corrosion Susceptibility ◽  
Manganese Steels

Abstract The influence of manganese (0.3 to 2.4%), sulfur (0.01 to 0.4%), sulfide composition, and heat treatment on the corrosion resistance of 13% chromium, 17% chromium and 18% chromium-9% nickel steels has been investigated. Corrosion in acid solutions, high humidity, and salt spray is dependent upon sulfide composition which in turn is determined by the manganese to sulfur ratio in the steel. Low manganese resulfurized stainless steels which contain chromium rich sulfides are inherently more corrosion resistant than high manganese steels containing manganese rich sulfides. The influence of heat treatment on the corrosion resistance of resulfurized steels is similar to that for residual sulfur grades. Sulfide composition also controls the behavior of these steels during nitric acid passivation treatments. Highly oxidizing solutions must be used to avoid attack during these treatments particularly for steels with high manganese to sulfur ratios. These solutions do not dissolve the commonly used tool steels (particles of which might be imbedded in the surface of a machined part) but can improve subsequent corrosion resistance by removing deleterious manganese rich sulfides. These improvements are most marked in the high manganese 13% chromium alloys. Passivation treatments can increase the corrosion susceptibility of cross section areas in low manganese resulfurized stainless steels.

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