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The Lattice Parameter of Gamma Iron and Iron-Chromium Alloys

Feng, Zhiyao
http://rave.ohiolink.edu/etdc/view?acc_num=case1429138602

Abstract Details

2015, Master of Sciences (Engineering), Case Western Reserve University, Materials Science and Engineering.
The lattice parameters of the gamma iron as a function of chromium alloy content were determined using high temperature X-ray diffraction measurements for three Fe-rich alloys. The three concentrations were: (1) pure iron powder, (2) 1 at.% Cr, and (3) 1.8 at.% Cr, and the temperature range was between 800℃ to 1300℃. Linear relationships between lattice parameter and temperature were observed and determined in all three samples. The lattice parameters of the γ-phase of the three samples at room temperature were determined by extrapolating the high temperature data to 20℃. The values are (0.3572±0.0005) nm, (0.3604±0.0003) nm, and (0.3609±0.0003) nm for pure iron powder and iron-chromium powders with 1 at.% Cr and 1.8 at.% Cr, respectively. A linear least squares regression analysis yielded: a=0.0021(nm/(at.%))×CCr+0.3575(nm).
David Matthiesen, PhD (Advisor)
Frank Ernst, PhD (Committee Member)
Matthew Willard, PhD (Committee Member)
82 p.
Materials Science
high temperature X-ray diffraction; lattice parameter; gamma phase; iron-chromium;

Recommended Citations

Citations

  • Feng, Z. (2015). The Lattice Parameter of Gamma Iron and Iron-Chromium Alloys [Master's thesis, Case Western Reserve University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=case1429138602

    APA Style (7th edition)

  • Feng, Zhiyao. The Lattice Parameter of Gamma Iron and Iron-Chromium Alloys. 2015. Case Western Reserve University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=case1429138602.

    MLA Style (8th edition)

  • Feng, Zhiyao. "The Lattice Parameter of Gamma Iron and Iron-Chromium Alloys." Master's thesis, Case Western Reserve University, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=case1429138602

    Chicago Manual of Style (17th edition)

case1429138602
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© 2015, all rights reserved.
This open access ETD is published by Case Western Reserve University School of Graduate Studies and OhioLINK.