Cr-Ge-Si Alloys for High-Temperature Structural Applications: Microstructural Evolution
Cr-Ge-Si Alloys for High-Temperature Structural Applications: Microstructural Evolution
复制标题
用于高温结构应用的 Cr-Ge-Si 合金:微观结构演变
DOI:
10.1007/s11661-013-2091-2
复制
发表时间:
2014
期刊:
影响因子:
--
通讯作者:
M.C. Galetz
中科院分区:
文献类型:
--
作者:
A. Soleimani-Dorcheh;M.C. Galetz
The microstructural evolution of Cr-Si1−x-Gex(0 <x< 15 at. pct) alloys was studied (in annealed state). The quasi-isothermal section of the ternary diagram was assessed by quantitative EPMA analysis. Morphology, phase formation, chemical distribution, and indentation hardness of the alloys were investigated as a function of Ge/Si ratio. The microstructure of all studied alloys consisted of Crsssolid solution and A15 Cr3X intermetallic phases. Substitution of Si by Ge strongly altered the microstructure by transforming the morphology from a lamellar eutectic Cr-Cr3Si system toward a peritectic one with dispersed Crssphase in A15 matrix. EPMA chemical distribution maps and X-ray diffraction results prove the mutual solubility of Si and Ge in A15 phase by forming Cr3(Si,Ge) as a complex A15 structure with Cr3(Si1−xGex) composition. Precipitates of the intermetallic phase within the Crssphase was observed in Ge-alloyed samples. Indentation hardness results showed that upon Si-Ge substitution the hardness of both phases was reduced. However, Si substitution by Ge had a stronger influence on the hardness of the solid solution phase than on the intermetallic phase.
登录
查看更多内容
DOI:
--
发表时间:
2006
期刊:
影响因子:
--
作者:
A. Gali;H. Bei;E. George
通讯作者:
E. George
DOI:
--
发表时间:
1992
期刊:
影响因子:
--
作者:
D. M. Shah;D. Anton
通讯作者:
D. Anton
影响因子:
6.7
作者:
N. Boutarek;R. Madar
通讯作者:
R. Madar
DOI:
--
发表时间:
2008
期刊:
影响因子:
--
作者:
Ö. Doğan
通讯作者:
Ö. Doğan
DOI:
10.1007/s11661-005-0172-6
发表时间:
2005-03
期刊:
Metallurgical and Materials Transactions A
影响因子:
--
作者:
Y. Gu;Y. Ro;T. Kobayashi;H. Harada
通讯作者:
Y. Gu;Y. Ro;T. Kobayashi;H. Harada