Evaluations of stress-free lattice spacings and residual stresses in a quenched carbon steel cylinder using neutron diffraction

Minsu Jung, Mihyun Kang, Wanchuck Woo, Young Kook Lee

Research output: Contribution to journalArticle

Abstract

Microstructure-dependent stress-free lattice spacings (d0) were measured using neutron diffraction in a comb-like specimen fabricated from a quenched carbon steel cylinder. The d0 values increased with cylinder radius due to the increase in the martensite (α') fraction with the radius and were comparable to d0 values calculated using the lattice parameter of each phase, taking the auto-tempering effect into consideration. Using the measured d0 values, we suggested a relationship between the d0 and α' fraction and evaluated macroscopic residual stresses in the quenched steel cylinder.

Original languageEnglish
Pages (from-to)392-395
Number of pages4
JournalMaterials Science and Engineering A
Volume565
DOIs
Publication statusPublished - 2013 Mar 10

Fingerprint

Steel
carbon steels
Tempering
Neutron diffraction
Martensite
Lattice constants
residual stress
Carbon steel
neutron diffraction
Residual stresses
spacing
Microstructure
evaluation
radii
tempering
martensite
lattice parameters
steels
microstructure

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

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abstract = "Microstructure-dependent stress-free lattice spacings (d0) were measured using neutron diffraction in a comb-like specimen fabricated from a quenched carbon steel cylinder. The d0 values increased with cylinder radius due to the increase in the martensite (α') fraction with the radius and were comparable to d0 values calculated using the lattice parameter of each phase, taking the auto-tempering effect into consideration. Using the measured d0 values, we suggested a relationship between the d0 and α' fraction and evaluated macroscopic residual stresses in the quenched steel cylinder.",
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Evaluations of stress-free lattice spacings and residual stresses in a quenched carbon steel cylinder using neutron diffraction. / Jung, Minsu; Kang, Mihyun; Woo, Wanchuck; Lee, Young Kook.

In: Materials Science and Engineering A, Vol. 565, 10.03.2013, p. 392-395.

Research output: Contribution to journalArticle

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