Precipitation and Grain Size Effects on the Tensile Strain-Hardening Exponents of an API X80 Steel Pipe after High-Frequency Hot-Induction Bending

This study discusses the use of the Morrison model to estimate the strain-hardening exponent (n) in the presence of precipitation hardening for an API X80 steel pipe. As the grain size becomes larger, high values of n are expected according to the Morrison equation. However, the grain size alone is...

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Bibliographic Details
Main Authors: Rafael A. Silva, André L. Pinto, Alexei Kuznetsov, Ivani S. Bott
Format: Article
Language:English
Published: MDPI AG 2018-03-01
Series:Metals
Subjects:
Online Access:http://www.mdpi.com/2075-4701/8/3/168