Effect of the conditions of the welding thermal cycle on the structure and properties of weld metal in titanium alloys

2012 ◽  
Vol 26 (1) ◽  
pp. 22-29 ◽  
Author(s):  
V. I. Murav'ev ◽  
O. N. Kleshnina ◽  
A. A. Kuznetsov ◽  
P. V. Bakhmatov
Keyword(s):  
Weld Metal ◽  
Titanium Alloys ◽  
Thermal Cycle ◽  
Structure And Properties ◽  
Welding Thermal Cycle

Microstructural evolution and mechanical integrity relationship of dissimilar metal welding between 2205 duplex stainless steel and composite bimetallic plates

2021 ◽  
pp. 095440622110036
Author(s):  
Changqing Ye ◽  
Weiguo Zhai ◽  
Guangyao Lu ◽  
Qingsong Liu ◽  
Liang Ni ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
Weld Metal ◽  
Duplex Stainless Steel ◽  
Intergranular Corrosion ◽  
Thermal Cycle ◽  
Filler Metal ◽  
2205 Duplex Stainless Steel ◽  
Welding Thermal Cycle ◽  
Intergranular Corrosion Resistance

In this paper, shielded metal arc welding on the dissimilar joint between 2205 duplex stainless steel and composite bimetallic plates (304 L stainless steel/10CrNi3MoV steel) with a filler metal E2209 was performed. Furthermore, the microstructure, phase, mechanical properties and intergranular corrosion resistance of the joints were investigated and element distributions of the interfaces were characterized. The results show that austenite transformed to ferrite under the influence of welding thermal cycle, and then a large amount of ferrite appeared in heat affected zone (HAZ) of 2205 duplex stainless steel. Coarse bainite grains were formed in HAZ of the 10CrNi3MoV steel near the fusion line with high temperature welding thermal cycle. Fine granular bainite was also generated in HAZ of 10CrNi3MoV steel due to the relatively short exposure time to the active temperature of grain growth. Local peak temperature near the base 10CrNi3MoV steel was still high enough to recrystallize the 10CrNi3MoV steel to form partial-recrystallization HAZ due to phase change. The filler metal was compatible with the three kinds of base materials. The thickness of the elemental diffusion interfaces layers was about 100 µm. The maximum microhardness value was obtained in the HAZ of 2205 duplex stainless steel (287 ± 14 HV), and the minimum one appeared in HAZ of SS304L (213 ± 5 HV). The maximum tensile strength of the welded joint was about 670 ± 6 MPa, and the tensile specimens fractured in ductile at matrix of the composite bimetallic plates. The impact energy of the weld metal and HAZ of the 10CrNi3MoV steel tested at –20 °C were 274 ± 6 J and 308 ± 5 J, respectively. Moreover, the intergranular corrosion resistance of the weldment including 304 L stainless steel, weld metal, HAZs and 2205 duplex stainless steel was in good agreement with the functional design requirements of materials corrosion resistance.

scholarly journals Effect of thermal cycle of TIG welding on structure and properties of pseudo-β-titanium alloys

2018 ◽  
Vol 2018 (8) ◽  
pp. 28-33
Author(s):  
S.V. Akhonin ◽  
◽  
V.Yu. Belous ◽  
R.V. Selin ◽  
◽  
...  
Keyword(s):  
Titanium Alloys ◽  
Thermal Cycle ◽  
Tig Welding ◽  
Structure And Properties

In Situ Detection of Thermal Cycle in Weld Metal of Cr-Mo Steel

2012 ◽  
Vol 602-604 ◽  
pp. 2061-2064
Author(s):  
Hai Tao Li ◽  
Yong Chang Zhu ◽  
Shou Fan Rong ◽  
Li Jie Qu
Keyword(s):  
Weld Metal ◽  
Thermal Cycle ◽  
Thermal Process ◽  
The Self ◽  
Low Alloy Steel ◽  
Welding Thermal Cycle ◽  
Welding Procedure ◽  
In Situ Detection ◽  
Local Hardening

With the self-designed system of welding thermal cycle test, low alloy steel of Cr-Mo series was welded through proper welding procedure according to the phenomenon of cold crack and local hardening in weld metal, and in-situ detection of thermal cycle for deposit metal was realized. The results show that self-designed system is reliable within the error range, the maximum peak temperature during thermal process was above 1700°C, it is largely improved than reported formerly.

Effect of the arc welding thermal cycle on the structure and properties of welded joints in dispersion‐filled metallic composites

2002 ◽  
Vol 16 (4) ◽  
pp. 312-316 ◽  
Author(s):  
G G Chernyshov ◽  
A M Rybachuk ◽  
T A Chernyshova ◽  
L I Kobeleva ◽  
L K Bolotova
Keyword(s):  
Welded Joints ◽  
Arc Welding ◽  
Thermal Cycle ◽  
Structure And Properties ◽  
Welding Thermal Cycle ◽  
Metallic Composites

Effect of welding thermal cycle on structural and phase weld metal transformations for heat-resistant Cr–Mo–V steels

2017 ◽  
Vol 8 (6) ◽  
pp. 886-891
Author(s):  
M. N. Timofeev ◽  
G. P. Karzov ◽  
S. N. Galyatkin ◽  
E. I. Mikhaleva
Keyword(s):  
Weld Metal ◽  
Thermal Cycle ◽  
Heat Resistant ◽  
Welding Thermal Cycle

Effect of Welding Thermal Cycle on the Microstructure and Mechanical Properties in Multi-Pass Submerged-Arc Welding

2011 ◽  
Vol 314-316 ◽  
pp. 1163-1166 ◽  
Author(s):  
Zhong Yi Chen ◽  
Yong Lin Ma ◽  
Shu Qing Xing
Keyword(s):  
Mechanical Properties ◽  
Weld Metal ◽  
Arc Welding ◽  
Thermal Cycle ◽  
Welded Joint ◽  
Submerged Arc Welding ◽  
Welding Parameters ◽  
Microstructure And Mechanical Properties ◽  
Welding Thermal Cycle ◽  
Submerged Arc

To research effect of welding thermal cycle on the microstructure and mechanical properties of welded joint, two pieces of 60mm thick plates were welded together using automatic submerged-arc welding (SAW) method with suitable welding parameters. After 17 passes welding, the microstructures and phases of the welded joint was carefully observed and analyzed by using a Carl Zeiss optical microscope in different zones of welded joint, and the surface micro-hardness of the welded joint was measured systematically by using microscopic-hardness tester Lycra. Afterwards, the mechanical properties of the weld metals were measured through stretching. Through a series of measurements and observations, the welding experiment results indicate that effect of welding thermal cycle on the microstructure and mechanical properties of welding joint is great, the grains of the bottom of the weld metal are certainty smaller and more uniform, and the bottom of the weld metal have more excellent mechanical properties.

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