An investigation on fracture toughness of the heat‐affected zone in the welded joints of 13% Cr‐4% Ni martensitic stainless steels

2021 ◽  
Author(s):  
Fayaz Foroozmehr ◽  
Philippe Bocher
Keyword(s):  
Fracture Toughness ◽  
Stainless Steels ◽  
Heat Affected Zone ◽  
Welded Joints ◽  
Martensitic Stainless Steels

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.

Temper Embrittlement Analyses at HAZ in New Generation of 2-1/4Cr-1Mo Steels by CTOD Tests

Materials ◽  
2003 ◽  
Author(s):  
Petronio Zumpano ◽  
Itamar Ferreira
Keyword(s):  
Fracture Toughness ◽  
Heat Affected Zone ◽  
Welded Joints ◽  
Room Temperature ◽  
Microstructural Analysis ◽  
Temper Embrittlement ◽  
Fine Grain ◽  
Before And After ◽  
Electron Microscope Analysis ◽  
New Generation

Temper embrittlement susceptibility was analyzed at HAZ of welded joints at room temperature in new generation of 2-1/4Cr-1Mo steels. Assessment was made by fracture toughness parameter CTODm in welded joints at coarse-grain heat affected zone (CGHAZ) and fine-grain heat affected zone (FGHAZ). Microstructural analysis was made before and after CTODm tests to place correctly fatigue pre crack at CGHAZ or at FGHAZ. Temper embrittlement simulation was made by “Step Cooling” treatment. Hardness results and microstructural analysis proved the use of stress associated with “Step Cooling” made the efficacy of this treatment better. The control of impurities content in the steel avoids development of temper embrittlement. This was confirmed by fracture toughness experiments at room temperature. No significant variation on CTODm results of three different situations of treatment and between CGHAZ and FGHAZ were observed. Scanning Electron Microscope analysis indicated fracture mechanism after embrittlement simulation was microvoids coalescence.

scholarly journals Corrosion Behavior of Welded Joints in Different Stainless Steels

2001 ◽  
Vol 71 (3) ◽  
pp. 440-449
Author(s):  
Eniko Reka Fabian ◽  
Janos Kuti ◽  
Jozsef Gati ◽  
Laszlo Toth
Keyword(s):  
Stainless Steel ◽  
Duplex Stainless Steel ◽  
Pitting Corrosion ◽  
Stainless Steels ◽  
Heat Affected Zone ◽  
Welding Speed ◽  
Welded Joints ◽  
Heat Input ◽  
Laser Power ◽  
Base Material

The welded metals characteristics produced by TIG welding or laser beam welding depend on heat input as a function of laser power and welding speed. High laser power and high welding speed have produced welded joint with a remarkable decrease in fusion zone size and an acceptable weld profile with high weld depth/width ratio. At duplex stainless steels the microstructure of welded metal, and heat affected zone is strongly influenced by cooling rate, which is depend on heat input as a function of laser power and/or welding speed. It was found that increasing welding speed the corrosion rate of welded joints decreased. In austenitic stainless steels appeared pitting corrosion in the base material as well as in the welding zone. In case of 2304 duplex stainless steel pitting corrosion appeared in welded metal and heat affected zone in case of autogenously welding, but at 2404 duplex stainless steel pitting appear more in the heat affected zone.

scholarly journals STRENGTH AND FRACTURE TOUGHNESS OF THE WELDED JOINTS MADE OF HIGH-STRENGTH FERRITIC STEEL

2013 ◽  
Vol 7 (4) ◽  
pp. 226-229 ◽  
Author(s):  
Ihor Dzioba ◽  
Tadeusz Pała ◽  
Ilkka Valkonen
Keyword(s):  
Fracture Toughness ◽  
Heat Affected Zone ◽  
Welded Joints ◽  
Ferritic Steel ◽  
Base Material ◽  
High Strength ◽  
Experimental Results ◽  
Strength Characteristics ◽  
Fusion Line ◽  
Weld Material

Abstract The paper presents experimental results of the characteristics of strength and fracture toughness of the material from the different zones of welded joints made of different participation of the linear welding energy. Strength characteristics and fracture toughness were determined in the weld material, in the area of fusion line, in the material of the heat affected zone and in the base material

Fracture toughness of the heat affected zone on Nd-YAG laser welded joints

2009 ◽  
Vol 16 (4) ◽  
pp. 1245-1251 ◽  
Author(s):  
J.M. Costa ◽  
J.M. Ferreira ◽  
C. Capela
Keyword(s):  
Fracture Toughness ◽  
Heat Affected Zone ◽  
Welded Joints ◽  
Yag Laser

scholarly journals Properties of the Heat-affected Zone of Welded Joints in Lean Duplex Stainless Steels

2013 ◽  
Vol 82 (6) ◽  
pp. 435-438
Author(s):  
Yusuke OIKAWA ◽  
Shinji TSUGE ◽  
Haruhiko KAJIMURA ◽  
Hiroshige INOUE
Keyword(s):  
Stainless Steels ◽  
Heat Affected Zone ◽  
Welded Joints ◽  
Duplex Stainless Steels

scholarly journals THE STUDY OF FRACTURE TOUGHNESS OF HEAT-AFFECTED ZONE OF WELDED JOINTS OF STEELS APPLIED FOR ARCTIC STRUCTURES

2018 ◽  
pp. 43-51
Author(s):  
A. Yu. Markadeeva ◽  
◽  
A. V. Ilyin ◽  
M. A. Gusev ◽  
◽  
...  
Keyword(s):  
Fracture Toughness ◽  
Heat Affected Zone ◽  
Welded Joints

Tests of Fracture Toughness of Laser-Welded Joints Made of Duplex 2205 Steel

2016 ◽  
Vol 250 ◽  
pp. 191-196
Author(s):  
Robert Soltysiak
Keyword(s):  
Fracture Toughness ◽  
Fatigue Crack ◽  
Heat Affected Zone ◽  
Welded Joints ◽  
Welded Joint ◽  
Weld Zone ◽  
Structural Heterogeneity ◽  
Parent Material ◽  
Joint Area

The process of welding introduces geometric notches to the area of joined material in the form of a face and root of a weld as well as structural heterogeneity in the form of changed properties (as compared with the parent material) in the heat affected zone and the weld zone. The parent material, as compared with the zones formed by welding, may differ in fracture toughness. In this paper the results of tests of fracture toughness of DUPLEX 2205 steel laser-welded joints are presented. Butt-welded joints were made by use of an Nd-YAG disc laser with no filler. The fatigue crack was initiated in the parent material and in the area including both the heat affected zone as well as the weld zone. The tests showed higher fracture toughness of the welded joint area as compared with the parent material.

Numerical Prediction of Fracture Behavior for Austenitic and Martensitic Stainless Steels

2017 ◽  
Vol 09 (04) ◽  
pp. 1750052 ◽  
Author(s):  
Goran Vukelic ◽  
Josip Brnic
Keyword(s):  
Fracture Toughness ◽  
Stainless Steels ◽  
Fracture Behavior ◽  
Fe Analysis ◽  
Fe Model ◽  
Single Edge ◽  
Type Specimens ◽  
Martensitic Stainless Steels ◽  
Standardized Formula ◽  
Senb Specimen

Two types of stainless steels are compared in this paper, austenitic X15CrNiSi25-20 and martensitic X20Cr13, based on their numerically predicted fracture behavior. There are engineering applications where both of the steels can be considered for use and where these materials can be exposed to crack occurrence and growth, so proper distinction between them is desirable. Comparison is made on the basis of [Formula: see text]-integral values that are numerically determined using finite element (FE) stress analysis results. FE analysis is performed on compact tensile (CT) and single-edge notched bend (SENB) type specimens that are usually used in standardized [Formula: see text]-integral experimental procedures. Calculated [Formula: see text]-integral values are plotted versus crack growth lengths for mentioned specimens. Results show somewhat higher values of [Formula: see text]-integral for steel X20Cr13 than X15CrNiSi25-20. Further, when comparing [Formula: see text]-integral values obtained through FE model of CT and SENB specimen, it is noticed that CT specimens give somewhat conservative results. Results obtained by this analysis can be used in predicting fracture toughness assessment during design process.

Study on nitrogen in martensitic stainless steels

2011 ◽  
Vol 66 (3) ◽  
pp. 150-164 ◽  
Author(s):  
N. Krasokha ◽  
H. Berns
Keyword(s):  
Stainless Steels ◽  
Martensitic Stainless Steels
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