Welding of niobium
Are you interested in welding niobium? Supplier Evek GmbH offers to buy welded niobium rolled products at an affordable price in a wide range. We will ensure the delivery of products to any point of the continent. The price is optimal.
Welding with a non-consumable tungsten electrode is the preferred method. The zone of formation of the welded joint must be protected by an inert gas. both from the front and from the back side of the welding zone. A method of electron beam welding is also possible. Evek GmbH sells niobium. Price from the manufacturer. The supplier ensures delivery of the products to any point specified by the customer.
Analysis of welded joints
The chemical, mechanical, non-destructive and corrosive properties of welded joints with niobium sheets of 1 mm thickness that were welded either electronically, in a high vacuum method, or by TIG welding in a controlled welding chamber filled with argon gas were investigated. pressure 1 at. The atmosphere contained a mixture of air, nitrogen, oxygen or hydrogen. Carbon and oxygen content in the weld seam did not change after TIG welding, but decreased significantly after electron beam welding. But the content of nitrogen in the welded seam compared to the TIG method was increased.
The heat-affected zone and the weld seam contain very large grains in the microstructure. The hardness of welded seams in electron-beam welding of niobium was greater when welding with tungsten electrode in an atmosphere of 99.99% argon than with electron beam welding. If air enters the protective atmosphere of argon, the welded joint becomes brittle. Hardening of welded niobium rolled is impossible.
When testing the strength of a weld seam obtained by electron beam welding, a gap occurs only over the weld zone, while a rupture in sintered welded niobium compounds obtained by the TIG method takes place in the region of the thermal influence zone, or even over the base metal. Porosity in the weld zone is absent.
Buy. Supplier, price
Are you interested in welding niobium? Supplier Evek GmbH offers to buy welded niobium rolled products in a wide range. We will ensure the delivery of products to any point of the continent. The price is optimal. We invite you to partner cooperation.