scholarly journals Study on hydrogen assisted cracking susceptibility of HSLA steel by implant test

2016 ◽  
Vol 12 (6) ◽  
pp. 490-495 ◽  
Author(s):  
Gopa Chakraborty ◽  
R. Rejeesh ◽  
S.K. Albert
Keyword(s):  
Hsla Steel ◽  
Hydrogen Assisted Cracking ◽  
Implant Test

scholarly journals Hydrogen-assisted cracking in GMA welding of high-strength structural steels using the modified spray arc process

2020 ◽  
Vol 64 (12) ◽  
pp. 1997-2009
Author(s):  
Thomas Schaupp ◽  
Michael Rhode ◽  
Hamza Yahyaoui ◽  
Thomas Kannengiesser
Keyword(s):  
Weld Metal ◽  
Gma Welding ◽  
High Strength ◽  
Economic Benefits ◽  
Structural Steels ◽  
Test Series ◽  
Deposition Rates ◽  
The Past ◽  
Hydrogen Assisted Cracking ◽  
Implant Test

Abstract High-strength structural steels are used in machine, steel, and crane construction with yield strength up to 960 MPa. However, welding of these steels requires profound knowledge of three factors in terms of avoidance of hydrogen-assisted cracking (HAC): the interaction of microstructure, local stress/strain, and local hydrogen concentration. In addition to the three main factors, the used arc process is also important for the performance of the welded joint. In the past, the conventional transitional arc process (Conv. A) was mainly used for welding of high-strength steel grades. In the past decade, the so-called modified spray arc process (Mod. SA) has been increasingly used for welding production. This modified process enables reduced seam opening angles with increased deposition rates compared with the Conv. A. Economic benefits of using this arc type are a reduction of necessary weld beads and required filler material. In the present study, the susceptibility to HAC in the heat-affected zone (HAZ) of the high-strength structural steel S960QL was investigated with the externally loaded implant test. For that purpose, both Conv. A and Mod. SA were used with same heat input at different deposition rates. Both conducted test series showed same embrittlement index “EI” of 0.21 at diffusible hydrogen concentrations of 1.3 to 1.6 ml/100 g of arc weld metal. The fracture occurred in the HAZ or in the weld metal (WM). However, the test series with Mod. SA showed a significant extension of the time to failure of several hours compared with tests carried out with Conv. A.

Study on Hydrogen-Assisted Cracking in High-Strength Steels by Using the Granjon Implant Test

2017 ◽  
Vol 6 (3) ◽  
pp. 247-257 ◽  
Author(s):  
U. Yadav ◽  
C. Pandey ◽  
N. Saini ◽  
J. G. Thakre ◽  
M. M. Mahapatra
Keyword(s):  
High Strength Steels ◽  
High Strength ◽  
Hydrogen Assisted Cracking ◽  
Implant Test

Integrated Experimental Procedures Assessing Hydrogen Induced Cracking Susceptibility

2015 ◽  
Author(s):  
Ahmed Fotouh ◽  
R. El-Hebeary ◽  
M. El-Shennawy ◽  
David Tulloch ◽  
Jason Davio ◽  
...  
Keyword(s):  
Base Metal ◽  
Hydrogen Content ◽  
Hsla Steel ◽  
High Strength ◽  
Carbon Equivalent ◽  
Mapping Technique ◽  
Static Fatigue ◽  
Diffusible Hydrogen ◽  
Hydrogen Induced Cracking ◽  
Implant Test

This study proposes a complete set of integrated experimental procedures to assess the risk of Hydrogen Induced Cracking (HIC) using implant test. The proposed experimental procedures assess HIC susceptibility in base metals using two measures: the implant static fatigue limit stress (σimp); and Heat Affected Zone (HAZ) maximum hardness (HV10MAX). The base metal susceptibility to HIC was evaluated by examining the effect of three welding factors: the critical cooling time between 800 °C and 500 °C (t800/500); the base metal carbon equivalent (CE); and the diffusible Hydrogen content (H). A 3-D mapping technique was used to demonstrate the interactive integrated relationships among the three examined welding factors (i.e. t800/500, CE and H) and the susceptibility of the base metal to HIC. Using the 2-D projection of the developed 3-D mapping, it was proven that the diffusible hydrogen content (H) had more effect on the HIC susceptibility of High Strength Low Alloy (HSLA) steel compared to the effect of H on the HIC susceptibility of Carbon-Manganese (C-Mn) steel.

Development of an equipment to evaluate the susceptibility to hydrogen assisted cracking

2017 ◽  
Author(s):  
Danilo Souza ◽  
José Eduardo Silveira Leal ◽  
Sinésio Franco ◽  
Guilherme Martiniano
Keyword(s):  
Hydrogen Assisted Cracking

Factors influencing the extent of hydrogen-enhanced brittle cracking in a Cu-strengthened HSLA steel during monotonic loading

2003 ◽  
Vol 94 (11) ◽  
pp. 1228-1233 ◽  
Author(s):  
Indranil Chattoraj ◽  
Anil Kumar ◽  
Swapan K. Das ◽  
Mita Tarafder ◽  
Soumitra Tarafder
Keyword(s):  
Hsla Steel ◽  
Monotonic Loading ◽  
Factors Influencing

Stretch-zone analysis by image processing for the evaluation of initiation fracture toughness of a HSLA steel

2005 ◽  
Vol 96 (8) ◽  
pp. 924-932
Author(s):  
M. Tarafder ◽  
Swati Dey ◽  
S. Sivaprasad ◽  
S. Tarafder ◽  
M. Nasipuri
Keyword(s):  
Image Processing ◽  
Fracture Toughness ◽  
Hsla Steel ◽  
Stretch Zone ◽  
Initiation Fracture Toughness

DOMEX 550MC

Alloy Digest ◽  
2009 ◽  
Vol 58 (3) ◽  
Keyword(s):  
Physical Properties ◽  
Hsla Steel ◽  
Steel Structures ◽  
High Strength ◽  
Heat Treating ◽  
Bend Strength ◽  
Cold Forming ◽  
Wide Range ◽  
Hot Rolled ◽  
Earthmoving Machines

Abstract Domex 550MC is a hot-rolled, high-strength low-alloy (HSLA) steel for cold forming operations. It is available in thicknesses of 2.00-12.80 mm. The alloy meets or exceeds the requirements of S550MC in EN 10149-2. Applications include a wide range of fabricated components and steel structures, including truck chassis, crane booms, and earthmoving machines. This datasheet provides information on composition, physical properties, tensile properties, and bend strength as well as fatigue. It also includes information on forming, heat treating, and joining. Filing Code: SA-594. Producer or source: SSAB Swedish Steel Inc.

Weldability of Controlled Rolled Micro Alloyed Thick HSLA Steel Plates for Fabrication of Penstock Liners

2005 ◽  
Vol 38 (1) ◽  
pp. 56
Author(s):  
P. K. Ghosh ◽  
A. K. Saxena ◽  
K. Devakumaran
Keyword(s):  
Hsla Steel ◽  
Steel Plates

Studies on Hydrogen Assisted Cracking Susceptibility of 2.25Cr-1Mo Steel Weldments

1997 ◽  
Vol 30 (3) ◽  
pp. 7 ◽  
Author(s):  
S. K. Albert ◽  
T. P. S. Gill ◽  
V. Ramasubbu ◽  
F. C. Parida ◽  
S. D. Kulkarni
Keyword(s):  
Hydrogen Assisted Cracking
Sign in / Sign up

Export Citation Format

Share Document