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Title: Heat treatments for improved mechanical properties of CuNiFe spinodal alloys

Abstract

Nonconventional heat treatments were designed to produce spinodal microstructures in two CuNiFe alloys for the improvement of mechanical properties with a reduction in total aging time. The microstructures were characterized by measuring the Curie temperature to determine the composition of the NiFe rich phase, and by TEM to measure the spinodal wavelength. In most cases the material failed integranularly. However, it was only after the longer aging times that any discontinuous grain boundary coarsening was observed. The measured yield strength of both alloys was found to be proportional to the difference in lattice parameter between the two phases and independent of wavelength and nearly independent of volume fraction.

Authors:
; ;
Publication Date:
Research Org.:
Univ. of California, Berkeley
OSTI Identifier:
6517290
Resource Type:
Journal Article
Journal Name:
Metall. Trans., A; (United States)
Additional Journal Information:
Journal Volume: 9:9
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; COPPER ALLOYS; MECHANICAL PROPERTIES; MICROSTRUCTURE; IRON ALLOYS; NICKEL ALLOYS; AGING; CRACKS; ELONGATION; FATIGUE; GRAIN BOUNDARIES; HARDNESS; HEAT TREATMENTS; LATTICE PARAMETERS; TRANSMISSION ELECTRON MICROSCOPY; YIELD STRENGTH; ALLOYS; CRYSTAL STRUCTURE; ELECTRON MICROSCOPY; MICROSCOPY; 360103* - Metals & Alloys- Mechanical Properties; 360102 - Metals & Alloys- Structure & Phase Studies

Citation Formats

Kubarych, K G, Okada, M, and Thomas, G. Heat treatments for improved mechanical properties of CuNiFe spinodal alloys. United States: N. p., 1978. Web. doi:10.1007/BF02652250.
Kubarych, K G, Okada, M, & Thomas, G. Heat treatments for improved mechanical properties of CuNiFe spinodal alloys. United States. https://doi.org/10.1007/BF02652250
Kubarych, K G, Okada, M, and Thomas, G. 1978. "Heat treatments for improved mechanical properties of CuNiFe spinodal alloys". United States. https://doi.org/10.1007/BF02652250.
@article{osti_6517290,
title = {Heat treatments for improved mechanical properties of CuNiFe spinodal alloys},
author = {Kubarych, K G and Okada, M and Thomas, G},
abstractNote = {Nonconventional heat treatments were designed to produce spinodal microstructures in two CuNiFe alloys for the improvement of mechanical properties with a reduction in total aging time. The microstructures were characterized by measuring the Curie temperature to determine the composition of the NiFe rich phase, and by TEM to measure the spinodal wavelength. In most cases the material failed integranularly. However, it was only after the longer aging times that any discontinuous grain boundary coarsening was observed. The measured yield strength of both alloys was found to be proportional to the difference in lattice parameter between the two phases and independent of wavelength and nearly independent of volume fraction.},
doi = {10.1007/BF02652250},
url = {https://www.osti.gov/biblio/6517290}, journal = {Metall. Trans., A; (United States)},
number = ,
volume = 9:9,
place = {United States},
year = {Fri Sep 01 00:00:00 EDT 1978},
month = {Fri Sep 01 00:00:00 EDT 1978}
}