AMPP Store - Products tagged with 'thermal aging'

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Discussion On Long Range Ordering Of Ni-Based Alloys Used In BWR Environment

Product Number: ED22-18533-SG

Author: Yun Wang, Ryoji Obata, Shinichi Ishioka

Publication Date: 2022

$20.00

Due to the strength, ductility, fracture toughness, corrosion resistance and especially the coefficient of thermal expansion, which is between stainless steel and low alloy steel, Ni-based alloys are used as weld metals in BWR and ABWR internals. Ni-based alloys with high chromium (Cr) concentration, such as Alloy 52 (Cr: 28-31.5 wt.%), Alloy 52i (Cr: 26-28 wt.%) and so on are expected to have higher SCC resistance than 182 (Cr: 13-17 wt.%) and Alloy 82 (Cr: 18-22 wt.%) in BWR environment.

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Effect Of Thermal Aging On The Microstructure And Mechanical Properties Of High-Ni And Ni-Base Alloys

Product Number: ED22-17125-SG

Author: Caitlin Huotilainen, Zaiqing Que, Yanling Ge, Petteri Lappalainen, Noora Hytönen, Ritva Korhonen, Santtu Huotilainen

Publication Date: 2022

$20.00

High-strength materials with excellent corrosion resistance and mechanical properties are highly sought after for use in light water reactor (LWR) type nuclear power plants (NPP). In western pressurized water reactors (PWR), nickel-base alloys are often the main structural materials for the steam generator (SG) tubes, while in Russian PWRs or water-water energetic reactor (VVER) high-nickel alloys, for example XH35BT (35 wt.% Ni), can be found in some primary side high strength applications, such as reactor pressure vessel internals (RVI).

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Long Range Ordering In Thermally Treated And Cold-Worked Alloy 690

Product Number: ED22-17251-SG

Author: Daniel Brimbal, Pierre Joly, Claude Benhamou, Cécilie Duhamel, Michael A. Burke, Annie Pagès, Bénédicte Gueraud

Publication Date: 2022

$20.00

Nickel-chromium alloys may be susceptible to ordering under certain thermal aging conditions, resulting in the formation of an Ni2Cr phase. The Ni2Cr phase is a superlattice which can result in significant changes of the physical or mechanical properties compared to those of the disordered alloy. Alloy 690, which usually contains a bit less than two nickel atoms per chrom-ium atom, could potentially be susceptible to long-range ordering (LRO) or short-range ordering (SRO). SRO implies that a Cr atom has a high probability of having a Ni nearest neighbor and that small order domains containing at most a few atoms exist. LRO implies that small Ni2Cr clusters exist, and although they may not be visible by transmission electron microscopy (TEM) dark field imaging, they lead to the detection of
additional diffraction spots in selected area electron diffraction (SAED) patterns, contrary to SRO. Below the critical temperature for LRO, the formation of the long-range ordered structures is preceded by a period of short-range ordering.

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NACE TM21431-2020, Test Methods to Evaluate Thermal Properties and Performance of Insulative Coatings

Product Number: 21431-2020

Publication Date: 2020

$179.00

HISTORICAL DOCUMENT. The purpose of this NACE International standard test method is to specify test methods and test conditions used to evaluate thermal properties, insulation values, and performance/integrity before and after thermal aging of insulative coatings. Testing for corrosion resistance is not included in this test method.

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NACE TM21431-2023, Test Methods to Evaluate Thermal Properties and Performance of Insulative Coatings

Product Number: NACE TM21431-2023

Publication Date: 2023

$109.00

The primary intent of this standard is to specify test conditions that would give a baseline evaluation – one that would allow direct performance comparisons between different insulative coatings. This standard is designed to have practical test procedures with limited test conditions. It also includes Appendix A (nonmandatory) which describes hot plate designs, and Appendix B (nonmandatory) which describes an alternative thermal conductivity test design.

Products tagged with 'thermal aging'

Discussion On Long Range Ordering Of Ni-Based Alloys Used In BWR Environment

Effect Of Thermal Aging On The Microstructure And Mechanical Properties Of High-Ni And Ni-Base Alloys

Long Range Ordering In Thermally Treated And Cold-Worked Alloy 690

NACE TM21431-2020, Test Methods to Evaluate Thermal Properties and Performance of Insulative Coatings

NACE TM21431-2023, Test Methods to Evaluate Thermal Properties and Performance of Insulative Coatings

Association for Materials Protection and Performance