Heat treatment of welded joints of alloy 36NKhTYu

1986 ◽  
Vol 28 (6) ◽  
pp. 439-442
Author(s):  
B. Akhmetzhanov ◽  
V. F. Sukhovarov ◽  
R. D. Strokatov ◽  
V. T. Martynenko
Keyword(s):  
Heat Treatment ◽  
Welded Joints ◽  
Alloy 36Nkhtyu

Effect of Heat Treatment on the Microstructure and Microchemistry of Explosive Welded Joints of Ti-5Ta-1.8Nb and 304L SS

2011 ◽  
Vol 44 (4) ◽  
pp. 53
Author(s):  
C. Sudha ◽  
T. N. Prasanthi ◽  
S. Saroja ◽  
M. Vijayalakshmi
Keyword(s):  
Heat Treatment ◽  
Welded Joints

A Study of the Influence of Local Heat Treatment on the Structure of Welded Titanium Pipelines

2021 ◽  
Vol 410 ◽  
pp. 37-41
Author(s):  
Natalia A. Astafeva ◽  
Andrey A. Balanovskiy ◽  
Anna A. Pershina
Keyword(s):  
Heat Treatment ◽  
Residual Stresses ◽  
Titanium Alloys ◽  
Welded Joints ◽  
Treatment Method ◽  
Local Heat ◽  
Optical Metallography ◽  
Heat Treated ◽  
Weld Structure ◽  
Heat Treatment Method

The article analyzes the results of a study of the influence of zonal heat treatment on the structure of welded joints of pipeline elements made of titanium alloys Ti-3.5Al-1.5Mn. In the manufacture of such structures, the TIG welding method is used to join pipe elements, after which the heat treatment method can be used to relieve residual stresses. The experiments have confirmed the effectiveness of zonal heat treatment preceded by welding. It was revealed that for welded joints made of titanium alloys, heat treatment can stabilize the structure. In experiments conducted by the method of optical metallography, the structure of heat treated and untreated welded joints was investigated. The influence of heat treatment on the weld structure and heat-affected zone was identified.

scholarly journals Small Diameter Tube Post-Weld Heat Treatment Process with Brinell Hardness and Microstructure Inspection

2021 ◽  
Vol 2083 (2) ◽  
pp. 022009
Author(s):  
Xiangqian Qi
Keyword(s):  
Heat Treatment ◽  
Constant Temperature ◽  
Welded Joints ◽  
Brinell Hardness ◽  
Lath Martensite ◽  
Small Diameter ◽  
Hardness Test ◽  
Post Weld Heat Treatment ◽  
Microstructure Observation ◽  
Weld Heat

Abstract The local post-weld heat treatment (PWHT) process test of 9Cr-3W-3Co small-diameter pipe welded joints was carried out using rope-type resistance heaters with different parameters, and the Brinell hardness test and microstructure observation were carried out on the welded joints after heat treatment. The results show that when the heating width was 200mm, the constant temperature was 790°C-800°C, and the constant temperature time was 2 hours, the Brinell hardness of the weld was in the range of 246HBW-265HBW, which had good performance. After tempering at 760°C-800°C, the welds all showed a clear tempered lath martensite.

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