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Hardness And Nickel-Based Alloys

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This paper addresses the relationship between hardness and environmental cracking resistance in nickel base alloys. The work here builds on the presentation made to AMPP’s SC08 Fall 2021 meeting on October 19th.

Product Number: 51323-18806-SG
Author: Robert Badrak, Julia Botinha, John Groth, Helena Alves
Publication Date: 2023
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The issue of hardness testing and nickel base alloys h s been a contentious topic in the oil and gas community. In this paper we present the uses of hardness testing with respect to nickel base alloys with examples of limitations and applications. As hardness has historically been seen as a factor for predicting environmental cracking resistance of nickel base alloys, a literature assessment of slow strain rate data is presented examining the potential for a relationship between the hardness and the alloy’s resistance to environmental cracking. More recent studies tried to access the mechanisms behind the environmental cracking issue and their results are reviewed.

The issue of hardness testing and nickel base alloys h s been a contentious topic in the oil and gas community. In this paper we present the uses of hardness testing with respect to nickel base alloys with examples of limitations and applications. As hardness has historically been seen as a factor for predicting environmental cracking resistance of nickel base alloys, a literature assessment of slow strain rate data is presented examining the potential for a relationship between the hardness and the alloy’s resistance to environmental cracking. More recent studies tried to access the mechanisms behind the environmental cracking issue and their results are reviewed.

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