316L Stainless Steel Diffusion Bonding Optimized Parameters

2017 ◽  
Author(s):  
Gustavo Nuernberg ◽  
Grégori Rosinski ◽  
Priscila Gonçalves ◽  
Marcus Mortean ◽  
Regis Henrique Goncalves e Silva ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Diffusion Bonding ◽  
316L Stainless Steel

scholarly journals Thermal Stress-Based Diffusion Bonding Method: the Case of Oxygen Free Copper to 316L Stainless Steel

2015 ◽  
Vol 56 (10) ◽  
pp. 1683-1687 ◽  
Author(s):  
Takashi Harumoto ◽  
Osamu Ohashi ◽  
Hiroki Tsushima ◽  
Miho Narui ◽  
Kensaku Aihara ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Thermal Stress ◽  
Diffusion Bonding ◽  
316L Stainless Steel ◽  
Bonding Method

Mechanical Performances and Failure Modes of Direct Diffusion Bonding Joints of 316L Stainless Steel

2006 ◽  
Vol 324-325 ◽  
pp. 979-982 ◽  
Author(s):  
Zi Liang An ◽  
Shan Tung Tu
Keyword(s):  
Stainless Steel ◽  
Diffusion Bonding ◽  
316L Stainless Steel ◽  
Failure Modes ◽  
Bonding Temperature ◽  
Xrd Analysis ◽  
Optical Microscope ◽  
Holding Time ◽  
High Temperature Strength ◽  
Mechanical Performances

Direct diffusion bonding of 316L stainless steel was performed at 850-1100°C for 1-3 h under a pressure of 10MPa in this study. The effect of bonding temperature and holding time on mechanical performances of the joints was investigated. Tensile tests were conducted to evaluate strength and elongation of the joints at room temperature and elevated temperature of 550°C. The microstructure and fracture surfaces of the joints were examined by optical microscope (OM) and scanning electronic microscope (SEM). The results indicated that the elongation of the joints increased with the increase of bonding temperature and holding time. However, overlong holding time had a side effect on the strength of the joint. Moreover, the change of the mechanical properties was closely related to the variation of the microstructure of the joints. The X-ray diffraction (XRD) analysis revealed that FeCr and Fe0.64Ni0.36 were formed at the DB6 joint during bonding process. It is suggested that FeCr should be detrimental to the improvement of high temperature strength of the joint.

scholarly journals Ni Interlayer to Improve Low-Pressure Diffusion Bonding of 316L SS Press Fit Tube-to-Tubesheet Joints for Coiled Tube Gas Heaters

2017 ◽  
Vol 3 (3) ◽  
Author(s):  
Rony Reuven ◽  
Alan Bolind ◽  
Nils Haneklaus ◽  
Cristian Cionea ◽  
Charalampos Andreades ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Diffusion Bonding ◽  
316L Stainless Steel ◽  
Low Pressure ◽  
Stainless Steel Tube ◽  
Coiled Tube ◽  
Tube Heat Exchanger ◽  
Press Fit ◽  
Pull Out ◽  
Ni Interlayer

This study suggests a new approach to diffusion bonding (DB) 316L stainless steel: a low-pressure procedure that includes a nickel interlayer. In this approach, relatively lower pressure is applied to the sample before the DB process, in contrast to the usual approach in which higher pressure is applied during the DB process. This new procedure was tested on mock-up 316L stainless steel tube-to-tubesheet joints, which simulated similar joints in coiled-tube heat-exchanger applications. This study confirms that the new procedure meets the overall success criteria, namely, a pull-out force exceeding the force required for tube rupture. It also shows that the DB joint is improved by the use of a Ni interlayer; the joint strength increased by approximately 33% for a 0.25 μm Ni interlayer and by approximately 18% for a 5 μm Ni interlayer. The joint cross sections were qualitatively examined using optical microscopy (OM) and scanning electron microscopy (SEM); the observations suggest that only portions of the interface were diffusion bonded, as a result of the low-pressure procedure and the surface roughness (due to the sample fabrication). The portions that were diffusion bonded, though, were sound, as characterized by the fact that the steel grains grew through the interface line to create a continuous metallographic structure.

Distribution of the composition and micromechanical properties of Be/316L stainless steel following diffusion bonding

2001 ◽  
Vol 32 (1) ◽  
pp. 88-90 ◽  
Author(s):  
Peng-cheng Zhang ◽  
Bin Bai ◽  
Liang Shen ◽  
Jue-sheng Zhou
Keyword(s):  
Stainless Steel ◽  
Diffusion Bonding ◽  
316L Stainless Steel ◽  
Micromechanical Properties

Formation of Nitrogen-Pearlite in the Diffusion Bonding of Sialon to 316L Stainless Steel

2010 ◽  
Author(s):  
P. Hussain ◽  
O. Mamat ◽  
M. Mohammad ◽  
W. M. N. W. Jaafar ◽  
Mohamad Rusop ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Diffusion Bonding ◽  
316L Stainless Steel

Hybrid friction diffusion bonding of 316L stainless steel tube-to-tube sheet joints for coil-wound heat exchangers

2016 ◽  
Vol 30 (11) ◽  
pp. 4925-4930 ◽  
Author(s):  
Nils Haneklaus ◽  
Cristian Cionea ◽  
Rony Reuven ◽  
David Frazer ◽  
Peter Hosemann ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Diffusion Bonding ◽  
Heat Exchangers ◽  
316L Stainless Steel ◽  
Steel Tube ◽  
Stainless Steel Tube ◽  
Tube Sheet
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