The role of microsegregation in centreline cold cracking of high strength low alloy steel weldments

2006 ◽  
Vol 54 (3) ◽  
pp. 489-492 ◽  
Author(s):  
I BROWN
Keyword(s):  
Alloy Steel ◽  
High Strength ◽  
Cold Cracking ◽  
Low Alloy Steel

scholarly journals Cold Crack Susceptibility studies on High Strength Low Alloy Steel 950A using Tekken Test

2017 ◽  
Vol 13 ◽  
pp. 25-31
Author(s):  
Manivelmuralidaran Velumani ◽  
M. Sakthivel ◽  
M. Balaji
Keyword(s):  
Weld Metal ◽  
Alloy Steel ◽  
Acicular Ferrite ◽  
Test Procedure ◽  
High Strength ◽  
Cold Cracking ◽  
Low Alloy Steel ◽  
Cracking Resistance ◽  
Preheating Temperature ◽  
Crack Susceptibility

In This research article deals with the study of cold cracking susceptibility of High Strength Low Alloy Steel (HSLA) 950A using Gas Metal Arc Welding process (GMAW). The cold cracking is a general problem while welding HSLA steels. It thus becomes mandatory to have a novel method of welding to minimize the effects of cold cracking. The cold cracking tendency of the material is determined using the Y groove Tekken test and the test is carried out with DIN EN ISO 17642–2 standard. The welding of the base metal has been carried out using the low hydrogen electrode ER 70SD2. The test procedure is followed under self-restraint condition for determining cold cracking susceptibility of weld metal. Micro structural constituent of the weld metal plays an important role in determining the cold crack susceptibility of the weld metal. Hence an attempt has been made to impart the microstructure having high resistance to cold cracking.  It has been observed that Acicular ferrite microstructure in the weld metal increases the cold cracking resistance of the welded joint.  In the present study, the effect of preheating temperature on cold crack susceptibility analyzed by varying the preheating temperature 100ºC, 150ºC and acicular ferrite microstructure observed in the microstructure analysis of the welded specimen. The effect of microstructure on cold cracking has also been established. But due to very limited range of temperature, the effect of preheating temperature on cold crack susceptibility was inconclusive. But the formation of acicular ferrite microstructure will have greater influence on cold crack susceptibility. In future, effects of Nickel, Manganese and other alloying elements of the filler material in increasing cold cracking resistance can also be studied for far reaching prospects of the research.

Weldability of S460ML High Strength Low Alloy Steel in Underwater Conditions

2016 ◽  
Vol 838 ◽  
pp. 10-17 ◽  
Author(s):  
Dariusz Fydrych ◽  
Jacek Tomków ◽  
Grzegorz Rogalski ◽  
Jerzy Łabanowski
Keyword(s):  
Alloy Steel ◽  
Experimental Evaluation ◽  
High Strength ◽  
Cold Cracking ◽  
Low Alloy Steel ◽  
Maximum Hardness ◽  
High Susceptibility ◽  
Underwater Wet Welding ◽  
Covered Electrodes

The paper presents experimental evaluation of susceptibility of the high strength S460ML steel to cold cracking in the conditions of wet welding with the use of covered electrodes. From the results of Tekken tests it was found out that the investigated steel was characterised, in the conditions of the carried out experiments (underwater wet welding and air welding with rutile electrodes), of high susceptibility to cold cracking. Maximum hardness of HAZ in most cases do not fulfill criterion of PN-EN ISO 15614-1 standard: exceeds 380HV10.

TENFORM XF450

Alloy Digest ◽  
2007 ◽  
Vol 56 (1) ◽  
Keyword(s):  
Physical Properties ◽  
Tensile Properties ◽  
Alloy Steel ◽  
High Strength ◽  
Bend Strength ◽  
Low Alloy Steel ◽  
Hot Rolled

Abstract The high strength of Tenform XF450, a hot-rolled high-strength low-alloy steel, allows the user to increase the strength of a finished component or to reduce the thickness. The steel is used in the construction and the automotive industries. This datasheet provides information on composition, physical properties, tensile properties. and bend strength. It also includes information on forming. Filing Code: CS-148. Producer or source: Hille & Mueller, USA Inc. See also Alloy Digest CS-173, November 2012.

Characterization of Clad Joints of High Strength Low Alloy Steel with Stainless Steel and Titanium

2018 ◽  
Vol 51 (4) ◽  
pp. 46
Author(s):  
N. Venkateswara Rao ◽  
G. Madhusudhan Reddy ◽  
S. Nagarjuna
Keyword(s):  
Stainless Steel ◽  
Alloy Steel ◽  
High Strength ◽  
Low Alloy Steel
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