Description

ALLOY 625 is a solid-solution strengthened nickel base alloy originally designed for applications in steam and gas turbines. In addition, it has been exploited for its corrosion resistance both in wrought and cast product form and as a cladding alloy, especially in marine environments where a combination of corrosion resistance and moderate strength is required, The wear resistance of Alloy 625 has been utilized for the hardfacing of tool and die steels.Alloy 625 has been produced by powder metallurgy processing for use in sour gas environments. Its utility as an engineering material is greatly enhanced by its relatively good fusion weldability when compared with many other nickel alloys. Despite its use as the product of a solidification processing operation (welding, casting, powder atomization, cladding, and hardfacing), no published effort has been made to understand the detailed solidification mechanics (alloying element segregation, solidification phases, etc.) of this alloy system. The purpose of this investigation was to establish the solidification sequence of Alloy 625 as a function of composition and to determine the fundamental melting/ solidification quantities (e.g., liquidus and solidus temperatures) for this alloy system. In the process of this work, enough experimental data were generated to allow for the approximation of several phase diagram quantities such as the liquidus and solidus slopes (mL, ms) as functions of the alloying elements C, Si, and Nb and the distribution coefficients (k) for these same elements Composition of nickel alloy 625. Chemistry, % AMS 4967 Min Max Chromium 20.00 23.0 Nickel 58.00 Balance Molybdenum 8.00 10.00 Cobalt - 1.00 Columbium + Tantalum 3.15 4.15 Aluminum - 0.40 Titanium - 0.40 Carbon - 0.10 Iron - 5.00 Manganese - 0.50 Silicon - 0.50 Phosphorus - 0.015 Sulfur - 0.015 INCONEL 625 ROUND BAR IN MUMBAI INCONEL 625 ROUND BAR STOCKIST IN MUMBAI INCONEL 625 ROUND BAR SUPPLIER IN MUMBAI STOCKIST OF INCONEL 625 ROUND BAR IN MUMBAI SUPPLIER OF INCONEL 625 ROUND BAR IN MUMBAI 625 INCONEL ROUND BAR IN MUMBAI