A study on the formation of liquation cracks in the weld heat-affected zone of HY-80 quenched and tempered steel

1994 ◽  
Vol 29 (9) ◽  
pp. 2328-2334 ◽  
Author(s):  
Rong-Iuan Hsieh ◽  
Shyi-Chin Wang ◽  
Horng-Yih Liou
Keyword(s):  
Heat Affected Zone ◽  
Quenched And Tempered Steel ◽  
Weld Heat ◽  
Tempered Steel

Study on Anti-Corrosion of the HAZ of 30CrMnSi Treated by Laser Remelting

2011 ◽  
Vol 291-294 ◽  
pp. 1421-1424 ◽  
Author(s):  
Yan Li Li ◽  
Ren Xu Huang ◽  
Pei Zhong Zhao ◽  
De Xian Yi
Keyword(s):  
Mechanical Properties ◽  
Laser Treatment ◽  
Heat Affected Zone ◽  
Processing Parameters ◽  
Corrosion Property ◽  
Laser Remelting ◽  
Corrosion Properties ◽  
Yag Laser ◽  
Quenched And Tempered Steel ◽  
Tempered Steel

30CrMnSi is quenched and tempered steel with medium hardenability, and good mechanical properties. However, the anti-corrosion of the weld heat affected zone will be decreased, which will lead to the worse overall properties of parts. The anti-corrosion properties of heat affected zone will be improved by YAG laser treatment according optimized processing parameters. The microstructure of the modified heat affected zone was observed and analyzed in this paper. And the anti-corrosion property was studied also. The results showed that the anti-corrosion property of heat affected zone will be improved by laser remelting technology. The laser anti-corrosion is the effective method to enhance anti-corrosion property.

Cause and Prevention of Stress-Relief Cracking in Quenched and Tempered Steel Weldments

1972 ◽  
Vol 94 (1) ◽  
pp. 336-341 ◽  
Author(s):  
C. F. Meitzner
Keyword(s):  
High Temperature ◽  
Heat Affected Zone ◽  
Elevated Temperatures ◽  
Stress Relief ◽  
Heat Treatments ◽  
Intergranular Cracking ◽  
Quenched And Tempered Steel ◽  
Postweld Heat ◽  
Tempered Steel

The paper reviews the causes and characteristics of stress-relief cracking, i.e., intergranular cracking in the heat-affected zone that occurs during the exposure of welded assemblies to the elevated temperatures produced by postweld heat treatments or high-temperature service. The findings presented are based largely on work at the Homer Research Laboratories with quenched and tempered steels. Means for preventing cracking during fabrication and service are discussed.

SUPERELSO 1100

Alloy Digest ◽  
2012 ◽  
Vol 61 (6) ◽  
Keyword(s):  
Fracture Toughness ◽  
Yield Strength ◽  
Tensile Properties ◽  
High Yield ◽  
Steel Alloy ◽  
High Yield Strength ◽  
Weight Saving ◽  
Quenched And Tempered Steel ◽  
Tempered Steel

Abstract SuperElso 1100 is a high yield strength quenched and tempered steel alloy. For welded and weight-saving structures. This datasheet provides information on composition and tensile properties as well as fracture toughness. It also includes information on forming, machining, and joining. Filing Code: SA-654. Producer or source: Industeel USA, LLC.

scholarly journals Properties of a thick-section narrow-gap gas tungsten arc weld of cast Haynes 282

2021 ◽  
Author(s):  
Michael Santella ◽  
X. Frank Chen ◽  
Philip Maziasz ◽  
Jason Rausch ◽  
Jonathan Salkin
Keyword(s):  
Base Metal ◽  
Heat Affected Zone ◽  
Reference Data ◽  
Filler Metal ◽  
Stress Rupture ◽  
Narrow Gap ◽  
Weld Deposit ◽  
Gas Tungsten Arc ◽  
Gas Tungsten ◽  
Weld Heat

AbstractA 50.8-mm-deep gas tungsten arc weld was made with matching filler metal in cast Haynes 282 alloy. The narrow-gap joint was filled with 104 weld beads. Visual and dye-penetrant inspection of cross-weld specimens indicated that the cast base metal contained numerous casting defects. No visible indications of physical defects were found in the weld deposit. The weld heat-affected zone was characterized by microcracking and localized recrystallization. The cause of the cracking could not be determined. Hardness testing showed that a softened region in the as-welded heat-affected zone was nearly eliminated by post-weld heat treatment. Tensile testing up to 816 °C showed that cross-weld specimen strengths ranged from 57 to 79% of the cast base metal tensile strength. The stress-rupture strengths of cross-weld specimens are within 20% of base metal reference data. Failures of both tensile and stress-rupture specimens occurred in the base metal.

Statistical model of cleavage fracture in granular bainite in simulated weld heat affected zone

1989 ◽  
Vol 5 (9) ◽  
pp. 913-917 ◽  
Author(s):  
X. X. Xu ◽  
Q. G. Cai ◽  
Y. Su ◽  
C. X. Hou ◽  
W. D. Ma
Keyword(s):  
Statistical Model ◽  
Cleavage Fracture ◽  
Heat Affected Zone ◽  
Granular Bainite ◽  
Weld Heat
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