Alloying Effects of Cr and Re on the Hot-corrosion of Nickel-based Single Crystal Superalloys Coated with a Na&lt;SUB&gt;2&lt;/SUB&gt;SO&lt;SUB&gt;4&lt;/SUB&gt;-NaCl Salt

Matsugi, Kazuhiro; Kawakami, Masahiro; Murata, Yoshinori; Morinaga, Masahiko; Yukawa, Natsuo; Takayanagi, Takeshi

doi:10.2355/tetsutohagane1955.78.5_821

Cited by 13 publications

(9 citation statements)

References 4 publications

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“…This is due to Re content (2 Mass fraction %) in DZ468 alloy. As already reported, Re is effective in improving hot corrosion resistance as well as creep rupture strength [11,12,13]. Furthermore, DZ468 is a kind of low segregation alloy which has own uniform microstructure and chemical composition.…”

Section: Hot Corrosion Resistancementioning

confidence: 85%

Study of a New Type High Strength Ni-Based Superalloy DZ468 with Good Hot Corrosion Resistance

Liu¹

2011

Advances in Gas Turbine Technology

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Section: Hot Corrosion Resistancementioning

confidence: 85%

Study of a New Type High Strength Ni-Based Superalloy DZ468 with Good Hot Corrosion Resistance

Liu¹

2011

Advances in Gas Turbine Technology

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“…Fig. 12. EJ200 LPC with axial slots casing treatment (Broichhausen & Ziegler, 2005) For both configurations, simulations showed a significant increment in flow stability compared to the solid wall, the stalling mass flow passed from 0.95% to 0.75% the design mass flow at the design speed.…”

Section: Slot-type Treatmentsmentioning

confidence: 99%

Advances in Gas Turbine Technology

Kyprianidis¹

2011

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“…Moreover, some oxides consisting of Cr or Re show excellent oxidation resistance at high temperatures. 22 The nominal compositions of experimental alloys proposed in this study are listed in Table 2, appending their Bo and Md which are simply obtained by calculating the compositional average of the Bo and Mo values. 20 The binary TiNi and ternary TiNi-0?5Re alloys listed in Table 2 were produced as chemical compositions of Ti-49?7 mol.-%Ni (hereafter called TiNi, and alloy compositions are referred to in mol.-%, unless otherwise noted) and Ti-49?1Ni-0?5Re (hereafter called TiNi-0?5Re) respectively.…”

Section: Alloy Designmentioning

confidence: 99%

Melting and solidification of TiNi alloys by cold crucible levitation method and evaluation of their characteristics

Matsugi

Mamiya²,

Choi

et al. 2008

International Journal of Cast Metals Research

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The addition of Re, Fe and Cr into Ti-50 mol.-%Ni has been carried out to improve the oxidation and mechanical properties. The mono phase consisting of TiNi with the B2 type structure was identified in micro-alloyed materials proposed on the basis of the d-electrons concept. Experimentally, TiNi alloys were melted and solidified by the cold crucible levitation melting (CCLM) method. The TiNi-(Cr, Fe, Re) alloys with high purity and without contamination from a crucible were prepared, and the homogeneous microstructure was achieved by the diffusion mixing effect of CCLM even in the as-cast alloys which contained Re and Cr with higher melting temperatures and different specific gravities. The transformation from austenite to martensite phases occurred in all alloys below or above room temperature. Some alloys had the ability of shape memory even at room temperature. Ternary alloys showed a higher flow stress level compared with the binary TiNi alloy. On the other hand, the oxidation at 1273 K was promoted by the formation of titanium oxides (TiO 2 ) on the alloy surfaces. The oxidation resistance was improved by the formation of the continuous Cr 2 O 3 film in TiNi-Cr alloys. The alloying effects by ternary elements (Re, Fe, Cr) in the intermetallic TiNi as well as metallic materials were explained well using two parameters used in the d-electrons concept.

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Alloying Effects of Cr and Re on the Hot-corrosion of Nickel-based Single Crystal Superalloys Coated with a Na<SUB>2</SUB>SO<SUB>4</SUB>-NaCl Salt

Cited by 13 publications

References 4 publications

Study of a New Type High Strength Ni-Based Superalloy DZ468 with Good Hot Corrosion Resistance

Study of a New Type High Strength Ni-Based Superalloy DZ468 with Good Hot Corrosion Resistance

Advances in Gas Turbine Technology

Melting and solidification of TiNi alloys by cold crucible levitation method and evaluation of their characteristics

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