Bni2 Brazing Filler Metal Paste is a fantastic product to use, regardless matter how much brazing experience you have or how new you are to it. It can be used in a number of applications, is simple to apply, and dries quickly.
The interface between C/C composite and TiAl alloy was complex, according to the results of the XRD tests performed on BNI2 Brazing Filler Metal Paste. The microstructure and mechanical characteristics of the junction were significantly influenced by the interlayer thickness of the composite filler.
XRD, SEM, and EDX were used to examine the interface structure. The interface was properly merged without any noticeable internal crack flaws. A brazed joint had good outward appearance. A trustworthy joining could be attained. High wetability was visible in the parent sheet and brazing seam.
Ti3Al, AlNi3 intermetallic complexes made up the major phases on the TiAl side of the brazed joint. On the side of the C/C composite, new intermetallic compounds were also discovered. The filler metal was in charge of regulating the interlayer thickness.
The interfaces' XRD investigation revealed the presence of multi-layered transition morphologies. There were no visible interior fracture problems when the joint interface was combined. Different brazing temperatures did not significantly alter the joint microstructure. The metallurgical connection was strong at the interface. At the interface, there was a lot of carbide. For dependable joining, carbides are required.
Additionally, XRD tests were performed on the brazed joint's TZM side. A FeTi-Ti3 phase appeared to be present at the contact. The contact had a significant amount of carbide that was distributed continuously.
There are numerous brazing filler metals on the market. These filler metals for brazing can either be eutectic or non-eutectic. The former type is distinguished by less capable filling. They are not as resistant to corrosion as alloys with nickel bases. They call for restricted joint clearances.
A ribbon of nanocrystalline metal is one kind of filler material. These filler metal powder alloys are utilized when vacuum brazing austenitic steel at high temperatures. They are also quickly quenched using the melt process.
The high temperature brazing filler metal BNi-2 is another variety. These nickel silicides and nickel borides are present in this brazing filler metal. Vacuum brazing of TiAl alloy is done using it. C/C composites can also be brazed using this method. This study used this brazing filler metal to vacuum braze a C/C composite and a TiAl alloy.
XRD, SEM, and back-scattered electrons were used to examine the microstructure of the brazed joint. TiC and TiAl compounds made up the interfacial microstructure.
The joint interface also had a multi-layered transition morphology. This resulted from the diffusion of metal elements, which altered the C/C composite's initial microstructure. On the shared contact, numerous chemical processes also took place. The outcomes demonstrated that new reaction layers were created on the interface by these events. AlNi3 intermetallic compounds made up the majority of the phases on the TiAl side of the brazed joint.
There are numerous brazing filler metals available in various grades. Each alloy is designed to work in a certain temperature range. The alloys can be made in the form of foil, preforms, tape, or wire. In joining applications, these brazing filler metals are frequently employed.
For brazing filler metals, the typical service temperature ranges from 400 to 800 degrees Celsius. The base material and the brazing filler metal ought to be able to wet each other well. During brazing, it shouldn't result in the base material becoming brittle. Additionally, it must to be well-corrosion resistant.
The brazing filler metal's capacity for filling depends on the metal's composition, the size of the substrate, and the brazing temperature. The less issues brought on by base material hardness and grain development, the lower the brazing temperature. A bigger joint clearance can be filled by using a brazing aluminum filler metal with a wider melting range.
The brazing filler metal covered by this invention comprises P (9.7-10.5 weight percent), B (1.0-7.0 weight percent), Cr (13.5-15.0 weight percent), Si (0.10 weight percent or less), Fe (0.20-0.02 weight percent), and copper (0.5-2.0 weight percent). Other elements could be present in the alloy. The sum of the components may be changed to increase by up to 100 weight percent.
TIJO, also known as Changsha Tianjiu Metal Materials Co., Ltd., was established in 2010 but began looking for "spherical" metal powder in 2007. The company has a strong technical basis and more than fifteen years of experience in the R&D and manufacture of metal materials.
The metal spherical powders that we have created and provide through our organization have good fluidity, great spherical shape, low impurity content, and exact composition control. It is widely used in the manufacture of powdered metal.
Our business has received ISO 9001 quality system certification. All of our goods adhere to ROHS regulations. Small sample orders as well as large orders for a variety of products are no problem for us.
We offer customers around the world seven series with more than 30 stable and mature metal powders and more than 300 custom metal powder development, which can meet customers' needs for a variety of purposes. We also offer 24 hour online technical support and fly to the site whenever necessary to assist customers in solving the use problems.
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