Next Article in Journal
Reduction of Induced Central Damage in Cold Extrusion of Dual-Phase Steel DP800 Using Double-Pass Dies
Next Article in Special Issue
Effect of Al2O3 Nanoparticles as Reinforcement on the Tensile Behavior of Al-12Si Composites
Previous Article in Journal
Resistance Upset Welding of ODS Steel Fuel Claddings—Evaluation of a Process Parameter Range Based on Metallurgical Observations
Previous Article in Special Issue
Study on Microstructure and Properties of Bimodal Structured Ultrafine-Grained Ferrite Steel
Article Menu
Issue 9 (September) cover image

Export Article

Open AccessArticle
Metals 2017, 7(9), 334; doi:10.3390/met7090334

Emergence and Progression of Abnormal Grain Growth in Minimally Strained Nickel-200

1
Connector & LAC Technology, Sandia National Laboratories, Albuquerque, NM 87185, USA
2
Materials Mechanics, Sandia National Laboratories, Albuquerque, NM 87185, USA
3
Metallurgical and Materials Engineering, The University of Alabama, Tuscaloosa, AL 35487, USA
*
Author to whom correspondence should be addressed.
Received: 1 July 2017 / Revised: 18 August 2017 / Accepted: 23 August 2017 / Published: 30 August 2017
View Full-Text   |   Download PDF [10721 KB, uploaded 30 August 2017]   |  

Abstract

Grain boundary engineering (GBE) is a thermomechanical processing technique used to control the distribution, arrangement, and identity of grain boundary networks, thereby improving their mechanical properties. In both GBE and non-GBE metals, the phenomena of abnormal grain growth (AGG) and its contributing factors is still a subject of much interest and research. In a previous study, GBE was performed on minimally strained (ε < 10%), commercially pure Nickel-200 via cyclic annealing, wherein unique onset temperature and induced strain pairings were identified for the emergence of AGG. In this study, crystallographic segmentation of grain orientations from said experiments are leveraged in tandem with image processing to quantify growth rates for abnormal grains within the minimally strained regime. Advances in growth rates are shown to vary directly with initial strain content but inversely with initiating AGG onset temperature. A numeric estimator for advancement rates associated with AGG is also derived and presented. View Full-Text
Keywords: abnormal grain growth; grain boundary engineering; electron backscattered diffraction; growth rate abnormal grain growth; grain boundary engineering; electron backscattered diffraction; growth rate
Figures

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Underwood, O.D.; Madison, J.D.; Thompson, G.B. Emergence and Progression of Abnormal Grain Growth in Minimally Strained Nickel-200. Metals 2017, 7, 334.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Metals EISSN 2075-4701 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top