G.E. Hicho, W.J. Boettinger
This study examines a mishap section and other selected sections made from 17-7 precipitation hardening stainless steel, revealing an unusually large amount of retained austenite greater than 7%. The excessive retained austenite on the surface appears to have been produced during both the solution annealing and austenite conditioning steps of the heat treating process, although it was only revealed after the austenite conditioning step. It is suspected that these sections may have been exposed to a furnace atmosphere containing too much carbon or nitrogen during the heat treating process, which could have led to an increase in the amount of retained austenite both on the surface and internally. The metallurgical examination provides insight into the factors contributing to this microstructural condition, emphasizing the importance of controlling furnace atmospheres to avoid potentially detrimental effects on material properties.
@article{2b5f1f07-e45a-4d6d-be1e-7b2342c8b1de,
title={Examination of the excessive retained austenite on the surface of a section of 17-7 precipitation hardening stainless steel},
author={G.E. Hicho and W.J. Boettinger},
year={1991},
language={English}
}TY - JOUR TI - Examination of the excessive retained austenite on the surface of a section of 17-7 precipitation hardening stainless steel AU - G.E. Hicho AU - W.J. Boettinger PY - 1991 LA - English ER -
E.N. Pugh, J.H. Smith
This report summarizes the FY1988 activities of the Metallurgy Division of the National Institute of Standards and Technology (NIST). The research cen
E.N. Pugh, J.H. Smith
This report summarizes the FY1988 activities of the Metallurgy Division of the National Institute of Standards and Technology (NIST). The research cen
David A. Scott
This work discusses the intricacies of metallography and the microstructure present in ancient and historic metals, aiming to elucidate the methods an
G.E.Hicho, W.J.Boettinger
We have examined the failed or "mishap" section, and other selected sections made from 17-7 precipitation hardening stainless steel, and have conclude
S. W. Stratton
In the modern testing of metals, determining their properties is insufficient without understanding the underlying conditions that influence these pro
S. W. Stratton
In modern metals testing, understanding the underlying conditions that determine the properties of metals and alloys is essential. This document prese