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Analysis of In Situ Mechanical Properties of Phases in High-Alloyed White Iron Measured by Grid Nanoindentation

Chen, Ling LU ; Ståhl, Jan-Eric LU and Zhou, Jinming LU (2015) In Journal of Materials Engineering and Performance 24(10). p.4022-4031
Abstract
The paper presents an analysis of the in situ mechanical properties (e.g., hardness, elastic modulus, and volume fraction) of phases in high-alloy white iron measured by grid nanoindentation statistically, to reveal the contributions of individual phase properties to the global properties of the material. The in situ mechanical properties of phases measured by grid indentation were validated through targeted indentation. Gaussian and Weibull mixture models were used in analyzing the grid nanoindentation measurements to assess the goodness-of-fit of the indentation data. The nanohardness and indentation modulus measured by grid nanoindentation were directly correlated to the microstructural characteristics of the sample materials. The... (More)
The paper presents an analysis of the in situ mechanical properties (e.g., hardness, elastic modulus, and volume fraction) of phases in high-alloy white iron measured by grid nanoindentation statistically, to reveal the contributions of individual phase properties to the global properties of the material. The in situ mechanical properties of phases measured by grid indentation were validated through targeted indentation. Gaussian and Weibull mixture models were used in analyzing the grid nanoindentation measurements to assess the goodness-of-fit of the indentation data. The nanohardness and indentation modulus measured by grid nanoindentation were directly correlated to the microstructural characteristics of the sample materials. The statistical analysis results were also compared with the mechanical properties and volume fractions obtained using targeted indentation and quantitative metallography based on microstructure analysis to validate the statistical results. The influences of heat treatment on the microstructure, hardness, and elastic modulus of individual phases in the material are also discussed. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
high-alloy white iron, mechanical properties, nanoindentation, statistics
in
Journal of Materials Engineering and Performance
volume
24
issue
10
pages
4022 - 4031
publisher
Springer
external identifiers
  • wos:000362296000036
  • scopus:84942984382
ISSN
1059-9495
DOI
10.1007/s11665-015-1672-1
language
English
LU publication?
yes
id
9b2030f8-88c1-4b4d-9158-31eb25831f13 (old id 8212431)
date added to LUP
2015-11-27 14:43:12
date last changed
2017-09-03 04:02:39
@article{9b2030f8-88c1-4b4d-9158-31eb25831f13,
  abstract     = {The paper presents an analysis of the in situ mechanical properties (e.g., hardness, elastic modulus, and volume fraction) of phases in high-alloy white iron measured by grid nanoindentation statistically, to reveal the contributions of individual phase properties to the global properties of the material. The in situ mechanical properties of phases measured by grid indentation were validated through targeted indentation. Gaussian and Weibull mixture models were used in analyzing the grid nanoindentation measurements to assess the goodness-of-fit of the indentation data. The nanohardness and indentation modulus measured by grid nanoindentation were directly correlated to the microstructural characteristics of the sample materials. The statistical analysis results were also compared with the mechanical properties and volume fractions obtained using targeted indentation and quantitative metallography based on microstructure analysis to validate the statistical results. The influences of heat treatment on the microstructure, hardness, and elastic modulus of individual phases in the material are also discussed.},
  author       = {Chen, Ling and Ståhl, Jan-Eric and Zhou, Jinming},
  issn         = {1059-9495},
  keyword      = {high-alloy white iron,mechanical properties,nanoindentation,statistics},
  language     = {eng},
  number       = {10},
  pages        = {4022--4031},
  publisher    = {Springer},
  series       = {Journal of Materials Engineering and Performance},
  title        = {Analysis of In Situ Mechanical Properties of Phases in High-Alloyed White Iron Measured by Grid Nanoindentation},
  url          = {http://dx.doi.org/10.1007/s11665-015-1672-1},
  volume       = {24},
  year         = {2015},
}