Zobrazeno 1 - 10
of 60
pro vyhledávání: '"Dwaine L. Klarstrom"'
Autor:
Dwaine L. Klarstrom, Michael L. Benson, Hahn Choo, Mark R. Daymond, Donald W. Brown, Peter K. Liaw
Publikováno v:
Materials Science and Engineering: A. 528:6051-6058
The strain-induced face-centered cubic (FCC) → hexagonal-close packed (HCP) phase transformation in a cobalt-based superalloy was investigated with four in situ loading neutron-diffraction experiments: monotonic tension, monotonic compression, high
Autor:
L.J. Chen, Dwaine L. Klarstrom, Kevin Liaw, Peter K. Liaw, Raymond A. Buchanan, R.L. McDaniels, R.V. Steward, Steve White
Publikováno v:
Materials Science and Engineering: A. 528:3952-3960
The strain-controlled fatigue behavior of the new nickel–chromium–molybdenum superalloy, HASTELLOY ® C-2000 ® was investigated. Low-cycle fatigue specimens were tested in strain-controlled fatigue conditions under axial strain range control at
Autor:
Walter Reimers, B. Reetz, Hahn Choo, Michael L. Benson, Donald W. Brown, Dwaine L. Klarstrom, Peter K. Liaw, Tarik A. Saleh
Publikováno v:
Materials Science and Engineering: A. 528:1987-1993
A complimentary set of experiments, in situ neutron diffraction and ex situ synchrotron X-ray diffraction, were used to study the phase-transformation and subgrain-deformation characteristics of a cobalt-based superalloy. The neutron diffraction indi
Publikováno v:
Materials Science and Engineering: A. 527:3813-3821
In this investigation, the affect of applied tensile stresses on the isothermal and cyclic oxidation behavior of nickel-based superalloys was studied. The influence of applied stresses was investigated through measurements of specific mass change, ox
Autor:
J.W. Tian, J.C. Villegas, Ruiming Ren, Dwaine L. Klarstrom, Angel L. Ortiz, K. Dai, Leon L. Shaw, Peter K. Liaw
Publikováno v:
Materials Science and Engineering: A. 527:986-994
In this study, we present the first evidence and modeling efforts showing that surface severe plastic deformation (S2PD) can be more effective in producing metallic components with superior fatigue properties than shot peening (SP). With the aid of a
Autor:
J.M. Aurrecoechea, J.W. Blust, P.F. Browning, L.J. Chen, S.A. Thompson, Y. L. Lu, Peter K. Liaw, A.K. Bhattacharya, Dwaine L. Klarstrom, S.Y. Lee
Publikováno v:
Journal of Materials Science. 44:2945-2956
Low-cycle-fatigue (LCF) and fatigue-crack-growth (FCG) behaviors of a cobalt-based HAYNES 188 superalloy were studied at temperatures ranging from 816 to 982 °C in laboratory air. Various tensile-hold times were imposed at the maximum strain and loa
Autor:
Angel L. Ortiz, J.C. Villegas, K. Dai, J.W. Tian, Peter K. Liaw, Leon L. Shaw, Dwaine L. Klarstrom
Publikováno v:
Materials Science and Engineering: A. 493:176-183
A surface severe plastic deformation (S 2 PD) method has been applied to bulk specimens of HASTELLOY ® C-2000 alloy, a nickel-base alloy. The mechanical properties of the processed C-2000 alloy were determined via tensile tests and Vickers hardness
Autor:
Dwaine L. Klarstrom, Michael Katcher
Publikováno v:
Materials Science Forum. :511-517
HAYNES® 230® and 617 alloys are competing for use on Generation IV, high temperature gas cooled reactor components because of good high temperature creep strength in the temperature range between 760°C and 982°C and resistance to oxidation in the
Autor:
Yandong Wang, Hahn Choo, Lee M. Pike, Dwaine L. Klarstrom, Bjørn Clausen, Yang Ren, E-Wen Huang, Rozaliya Barabash, Peter K. Liaw, L. Li, Gene E. Ice
Publikováno v:
International Journal of Plasticity. 24:1440-1456
The plasticity behavior of the annealed HASTELLOY C-22HSTM alloy, a face-centered cubic (FCC), nickel-based superalloy, was examined by the in-situ neutron-diffraction experiments at room temperature. Monotonic-tension and low-cycle-fatigue experimen
Autor:
J.M. Aurrecoechea, Y. L. Lu, Hahn Choo, A.K. Bhattacharya, J.W. Blust, S.A. Thompson, Dwaine L. Klarstrom, P.F. Browning, S.Y. Lee, Peter K. Liaw
Publikováno v:
Mechanics of Time-Dependent Materials. 12:31-44
The creep–fatigue crack-growth tests of HASTELLOY® X alloy were carried out at the temperatures of 649°C, 816°C, and 927°C in laboratory air. The experiments were conducted under a constant stress-intensity-factor-range (ΔK) control mode with