Abstract
Type HW is a nickel-base alloy containing chromium and iron. It is austenitic, non-magnetic, and has exceptionally high resistance to corrosion, cyclic heating, and oxidation. It is of the 60 Ni-12Cr type alloy. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as creep. It also includes information on high temperature performance and corrosion resistance as well as casting, heat treating, machining, and joining. Filing Code: Ni-37. Producer or source: Stainless steel foundries. Revised as Alloy Digest Ni-449, April 1994.
Abstract
DMV 928 is a nickel-base alloy with high alloying elements of chromium, molybdenum, and copper for excellent corrosion resistance in reducing and oxidizing media. This datasheet provides information on composition, physical properties, elasticity, and tensile properties as well as fracture toughness. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SS-1048. Producer or source: Mannesmann DMV Stainless USA Inc.
A diffusion barrier between a 4th generation superalloy (MC-NG) and a β-(Ni, Pt)Al has
been studied. The used coating process combines Re and NiW electrolytic deposits followed by
thermal treatments. The diffusion barrier is composed of a continuous 3 &m thick ReWNi layer
under a 10 &m thick β-(Ni, Pt)Al containing W rich precipitates. EDS analysis on as coated samples
and on 50h-1100°C-Ar aged samples showed that the Re-NiW layer works as a diffusion barrier.
The Al reservoir in the bond coat after aging is higher with the diffusion barrier than without. The
concentrations of alloying elements are also lower in the bond coat with the diffusion barrier than
without.
Semiconducting properties of oxide and passive films formed on AISI 304 stainless steel and Alloy 600