The corrosion behavior of Alloy 52 weld metal in cyclic hydrogenated and oxygenated water chemistry in high temperature aqueous environment

2015 ◽  
Vol 461 ◽  
pp. 10-21 ◽  
Author(s):  
Jian Xu ◽  
Tetsuo Shoji
Keyword(s):  
High Temperature ◽  
Weld Metal ◽  
Water Chemistry ◽  
Corrosion Behavior ◽  
Aqueous Environment ◽  
Oxygenated Water

Study on Growth Direction and Characteristics of SCC in Nickel Base Weld Metal in High Temperature Oxygenated Water

2004 ◽  
Author(s):  
Jiro Kuniya ◽  
Michiyoshi Yamamoto ◽  
Haruo Fujimori ◽  
Satoshi Namatame ◽  
Shunichi Suzuki
Keyword(s):  
High Temperature ◽  
Weld Metal ◽  
Growth Direction ◽  
The Other ◽  
Specimen Thickness ◽  
Entire Thickness ◽  
Oxygenated Water ◽  
Direction Dependence ◽  
Nickel Base ◽  
Average Individual

SCC growth direction and SCC characteristics in Ni base weld metal (DNiCrFe-1J) in high temperature oxygenated water have been studied. The following results were obtained. (1) Strong direction dependence was observed in which SCC propagated preferentially along the growth direction of columnar crystals, (2) Conventional average SCC length which can be calculated from the equation in which SCC area is divided by the entire CT specimen thickness was about 1/2–3/4 times the average individual SCC length on individual columnar crystals. This was because SCC does not go through the entire thickness of the CT specimen. On the other hand, maximum SCC length was almost equal to the average individual SCC length produced on individual columnar crystals. Thus, the average individual SCC length and/or maximum SCC length were judged to be appropriate lengths for obtaining the SCC growth rate of Ni base weld metal (DNiCrFe-1J).

NIMROD 617KS

Alloy Digest ◽  
2002 ◽  
Vol 51 (5) ◽  
Keyword(s):  
Fracture Toughness ◽  
High Temperature ◽  
Weld Metal ◽  
Tensile Properties ◽  
Base Metal ◽  
Heat Treating ◽  
Nominal Composition

Abstract Nimrod 617KS is an Inconel-type consumable with a nominal composition of nickel, 24% Cr,12% Co, and 9% Mo and is used to join UNS N06617 and Nicrofer 6023 to themselves. The alloy is designed for high-temperature service and is often used as the weld metal in dissimilar cases to ensure the weld is as strong as the base metal. This datasheet provides information on composition, hardness, and tensile properties as well as fracture toughness. It also includes information on heat treating and joining. Filing Code: Ni-583. Producer or source: Metrode Products Ltd.

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