Topic
Filler metal
About: Filler metal is a research topic. Over the lifetime, 11152 publications have been published within this topic receiving 86590 citations.
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TL;DR: In this paper, the microstructure evolution mechanism of the joints was put forward based on the experimental analysis, and the hardness and elastic modulus of the phases in the joint were measured by nano-indentation to show the plastic deformation capacity.
37 citations
Patent•
30 Dec 1985TL;DR: In this paper, a method of joining ceramics and metals to themselves and to one another at about 800°C was described using a brazing filler metal consisting essentially of 35 to 50 at. % copper, 40 to 50At. % tin, 1 to 15 at.
Abstract: A method of joining ceramics and metals to themselves and to one another at about 800° C. is described using a brazing filler metal consisting essentially of 35 to 50 at. % copper, 40 to 50 at. % silver, 1 to 15 at. % titanium, and 2 to 8 at. % tin. This method produces strong joints that can withstand high service temperatures and oxidizing environments.
37 citations
TL;DR: In this article, the microstructure, shear strength, and microhardness of the resulting joints were investigated using vacuum transient liquid phase bonding of Inconel 617 alloy, and the results showed that the complete isothermal solidification occurred after 300min for both the filler metal thicknesses.
37 citations
29 Sep 2017-Materials Science and Engineering A-structural Materials Properties Microstructure and Processing
TL;DR: In this article, the effects of welding current (heat input) on the microstructure and mechanical behavior of the joints, which consist of Al-Al welding zone and Al-Cu brazing zone, are investigated.
Abstract: 5052 aluminum alloy and pure copper (T2) are joined, using a low heat input pulsed double-electrode gas metal arc welding (DE-GMAW)-brazing method with AlSi 12 filler metal. The effects of welding current (heat input) on the microstructure and mechanical behavior of the joints, which consist of Al-Al welding zone and Al-Cu brazing zone, are investigated. The Al-Cu welding zone mainly consists of α-Al solid solution and Al-Cu eutectic phase in coral-like shape. There exists a layer of Al 2 Cu intermetallic compound (IMC) in the Al-Cu brazing zone. Using the theory of thermal activation process, a quadratic relation between the thickness of the IMC layer and welding current intensity is derived. The experimental result supports this relationship. The shear strength of the Al-Cu joints first increases with the increase of the welding current (heat input), reaches a maximum of 17.66 MPa, and then decreases with the increase of the welding current due to the dispersion of the Al 2 Cu IMCs of large sizes in the Al alloy. Fracture of the Al-Cu lap joints occurs at three different positions, and the corresponding failure mechanisms are discussed according to the morphologies of fracture surfaces.
37 citations