Zobrazeno 1 - 10
of 77
pro vyhledávání: '"Larry R Walker"'
Autor:
Yukinori Yamamoto, Donovan N. Leonard, Govindarajan Muralidharan, Harry M. Meyer, Michael P. Brady, Larry R Walker
Publikováno v:
JOM. 68:2803-2810
Cast Fe-Ni-Cr chromia-forming austenitic stainless steels with Ni levels up to 45 wt.% are used at high temperatures in a wide range of industrial applications that demand microstructural stability, corrosion resistance, and creep strength. Although
Publikováno v:
Materials Science and Technology. 29:822-827
To evaluate the steam oxidation resistance of cast Ni base alloy candidates for advanced steam turbine casings, laboratory experiments were conducted at 800°C. Alloys ranged from weaker, solid solution strengthened alloys 230 and 625 to stronger, pr
Autor:
Scott G. Leslie, Govindarajan Muralidharan, Larry R Walker, Kanth Kurumaddali, Andrew K. Kercher
Publikováno v:
Journal of Electronic Materials. 42:240-248
There is a need for next-generation, high-performance power electronic packages and systems utilizing wide-band-gap devices to operate at high temperatures in automotive and electricity transmission applications. Sn-3.5Ag solder is a candidate for us
Publikováno v:
Materials at High Temperatures. 29:129-135
Eutectic Pb –Li is a leading candidate for current fusion blanket concepts as a coolant. However, there is very little data about the compatibility of most materials with Pb–Li above 500°C where the dissolution rate of many conventional alloys i
Autor:
James R. Keiser, David J. Wesolowski, David R. Cole, Mostafa Fayek, Lawrence M. Anovitz, R. A. Peascoe-Meisner, Larry R Walker, Karren L. More, Michael P. Brady
Publikováno v:
Oxidation of Metals. 78:1-16
A high-purity Fe–20Cr and commercial type 430 ferritic stainless steel were exposed at 700 and 800 °C in dry air and air with 10% water vapor (wet air) and characterized by SEM, XRD, STEM, SIMS, and EPMA. The Fe–20Cr alloy formed a fast growing
Autor:
Larry R Walker, James A. Kolopus, Charles R. Schaich, Jane Y. Howe, Chengdu Liang, Lynn A. Boatner, Nancy J. Dudney
Publikováno v:
Journal of Materials Science. 47:1572-1577
A vacuum-tight transfer stage is described, that enables air or moisture sensitive specimens to be safely transferred from a protective environment, like that in a dry box, to a scanning electron microscope without exposing the sample to ambient cond
Autor:
Ricardo Aristizabal, Edward Druschitz, Alan Druschitz, Thomas R. Watkins, M Ostrander, Camden R. Hubbard, Larry R Walker
Publikováno v:
Metallurgical and Materials Transactions A. 43:1468-1476
Intercritically austempered ductile irons hold promise for applications requiring fatigue durability, excellent castability, low production energy requirements, reduced greenhouse gas emissions, and excellent machinability. In the present study, four
Publikováno v:
Philosophical Magazine Letters. 91:443-451
Thermal stability is a requirement for the deployment of thermoelectric (TE) materials in the application of power generation. Lead–antimony–silver–tellurium (LAST) is an emerging material with promising TE properties. This study focuses on the
Autor:
Yukinori Yamamoto, Michael P. Brady, Larry R Walker, Michael J. Lance, Kinga A. Unocic, Michael L. Santella
Publikováno v:
Oxidation of Metals. 75:337-357
A family of alumina-forming austenitic (AFA) stainless steels is under development for use in aggressive oxidizing conditions from ~600–900 °C. These alloys exhibit promising mechanical properties but oxidation resistance in air with water vapor e
Autor:
Jack Huang, Odis Burl Cavin, Carl J. Boehlert, Larry R Walker, Zhe Chen, Thomas R. Watkins, Ray Decker, S. LeBeau
Publikováno v:
Metallurgical and Materials Transactions A. 42:1386-1399
Tensile, fatigue, fracture toughness, and creep experiments were performed on a commercially available magnesium-aluminum alloy (AM60) after three processing treatments: (1) as-THIXOMOLDED (as-molded), (2) THIXOMOLDED then thermomechanically processe