Planar Front Growth of Single Crystal Ni-Based Superalloy René N515
Planar Front Growth of Single Crystal Ni-Based Superalloy René N515
复制标题
单晶镍基高温合金 René N515 的平面正面生长
DOI:
10.1007/s11837-020-04091-x
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发表时间:
2020
期刊:
影响因子:
2.6
通讯作者:
Titus, Michael S.
中科院分区:
文献类型:
--
作者:
Matsunaga, Sae;Huang, Duo;Inman, Samuel B.;Mason, Jack C.;Konitzer, Doug;Johnson, David R.;Titus, Michael S.
A Ni-based superalloy, René N515, was fabricated by the levitation zone melting process to produce planar front single crystal growth. Microstructure, alloy composition, and microhardness properties of the as-zone melted and solution heat treated alloy were investigated and compared with the directionally solidified state to study the effect of microsegregation on these alloy characteristics. In the planar front region, the dendritic structure and microsegregation were eliminated, and the density of casting porosity decreased as well. We modeled the zone melting/planar growth process by solving the zone melting mass balance equation numerically, and the measured and predicted composition profile of the planar front were in good agreement. The Vickers microhardness did not vary throughout the planar front region. These results indicate that a nearly homogeneous planar front of a 2nd-generation single Ni-based superalloy can be fabricated via levitation zone melting, and common casting defects can be eliminated entirely.
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DOI:
10.4028/www.scientific.net/msf.638-642.2257
发表时间:
2010-01
期刊:
Materials Science Forum
影响因子:
--
作者:
T. Jin;Wen Wang;Xiao-feng Sun;Z. Hu
通讯作者:
T. Jin;Wen Wang;Xiao-feng Sun;Z. Hu
DOI:
--
发表时间:
1989
期刊:
影响因子:
--
作者:
R. Reviere;B. Oliver;D. D. Bruns
通讯作者:
D. D. Bruns
DOI:
--
发表时间:
1982
期刊:
影响因子:
--
作者:
J. J. Montoya;R. Kadalbal;T. Z. Kattamis;A. F. Giamei
通讯作者:
A. F. Giamei
DOI:
--
发表时间:
1971
期刊:
影响因子:
--
作者:
J. Tien;R. P. Gamble
通讯作者:
R. P. Gamble
影响因子:
1.8
作者:
K. Luitjohan;M. Krane;D. Johnson
通讯作者:
D. Johnson