Joining of oxidation-resistant Mo-Si-B multiphase alloy to heat-resistant Mo-ZrC in-situ composite

N. Nomura; T. Suzuki; S. Nakatani; K. Yoshimi; S. Hanada

doi:10.1016/S0966-9795(02)00166-8

Joining of oxidation-resistant Mo-Si-B multiphase alloy to heat-resistant Mo-ZrC in-situ composite

N. Nomura, T. Suzuki, S. Nakatani, K. Yoshimi, S. Hanada

Research output: Contribution to journal › Article › peer-review

10 Citations (Scopus)

Abstract

Joining of oxidation-resistant Mo-Si-B multiphase alloy and to heat-resistant Mo-ZrC in-situ composite was studied through observation of microstructural evolution and measurement of hardness near the joint interface. As jointed at 1773 K for 7.2 ks, Mo₃Si is formed in Mo-ZrC because of the non-equilibrium state between Mo and Mo₅Si₃. As jointed at 1973 K for 5.4 ks, a reactant containing Mo, Zr and Si is formed along the interface between Mo-Si-B and Mo-ZrC. Si is enriched in prior ZrC particles away from the interface in distances of 0 to about 4 μm. The hardness of Mo-ZrC after jointed at 1773 K shows no change near the joint interface in the range beyond 5 μm. On the other hand, the hardness values of Mo-ZrC jointed at 1973 K increases in the range of 0-10 μm. This indicates that Si diffuses at least by 10 μm into Mo in Mo-ZrC during bonding at 1973 K for 5.4 ks.

Original language	English
Pages (from-to)	51-56
Number of pages	6
Journal	Intermetallics
Volume	11
Issue number	1
DOIs	https://doi.org/10.1016/S0966-9795(02)00166-8
Publication status	Published - 2003 Jan

Keywords

A. Molybdenum silicides
B. Phase identification
C. Joining

ASJC Scopus subject areas

Chemistry(all)
Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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10.1016/S0966-9795(02)00166-8

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title = "Joining of oxidation-resistant Mo-Si-B multiphase alloy to heat-resistant Mo-ZrC in-situ composite",

abstract = "Joining of oxidation-resistant Mo-Si-B multiphase alloy and to heat-resistant Mo-ZrC in-situ composite was studied through observation of microstructural evolution and measurement of hardness near the joint interface. As jointed at 1773 K for 7.2 ks, Mo3Si is formed in Mo-ZrC because of the non-equilibrium state between Mo and Mo5Si3. As jointed at 1973 K for 5.4 ks, a reactant containing Mo, Zr and Si is formed along the interface between Mo-Si-B and Mo-ZrC. Si is enriched in prior ZrC particles away from the interface in distances of 0 to about 4 μm. The hardness of Mo-ZrC after jointed at 1773 K shows no change near the joint interface in the range beyond 5 μm. On the other hand, the hardness values of Mo-ZrC jointed at 1973 K increases in the range of 0-10 μm. This indicates that Si diffuses at least by 10 μm into Mo in Mo-ZrC during bonding at 1973 K for 5.4 ks.",

keywords = "A. Molybdenum silicides, B. Phase identification, C. Joining",

author = "N. Nomura and T. Suzuki and S. Nakatani and K. Yoshimi and S. Hanada",

note = "Funding Information: The authors would like to thank Dr. T. Shima for helpful operation of the nano-indentaion system and Mr. S. Watanabe for technical assistance. This research was supported by a Grant-in-Aid for Scientific Research on Priority Area (No. 11221202) from the Ministry of Education, Science and Culture of Japan. A part of this work was performed under the inter-university cooperative research program of Laboratory for Advanced Materials, Institute for Materials Research, Tohoku Universtiy.",

year = "2003",

month = jan,

doi = "10.1016/S0966-9795(02)00166-8",

language = "English",

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pages = "51--56",

journal = "Intermetallics",

issn = "0966-9795",

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TY - JOUR

T1 - Joining of oxidation-resistant Mo-Si-B multiphase alloy to heat-resistant Mo-ZrC in-situ composite

AU - Nomura, N.

AU - Suzuki, T.

AU - Nakatani, S.

AU - Yoshimi, K.

AU - Hanada, S.

N1 - Funding Information: The authors would like to thank Dr. T. Shima for helpful operation of the nano-indentaion system and Mr. S. Watanabe for technical assistance. This research was supported by a Grant-in-Aid for Scientific Research on Priority Area (No. 11221202) from the Ministry of Education, Science and Culture of Japan. A part of this work was performed under the inter-university cooperative research program of Laboratory for Advanced Materials, Institute for Materials Research, Tohoku Universtiy.

PY - 2003/1

Y1 - 2003/1

N2 - Joining of oxidation-resistant Mo-Si-B multiphase alloy and to heat-resistant Mo-ZrC in-situ composite was studied through observation of microstructural evolution and measurement of hardness near the joint interface. As jointed at 1773 K for 7.2 ks, Mo3Si is formed in Mo-ZrC because of the non-equilibrium state between Mo and Mo5Si3. As jointed at 1973 K for 5.4 ks, a reactant containing Mo, Zr and Si is formed along the interface between Mo-Si-B and Mo-ZrC. Si is enriched in prior ZrC particles away from the interface in distances of 0 to about 4 μm. The hardness of Mo-ZrC after jointed at 1773 K shows no change near the joint interface in the range beyond 5 μm. On the other hand, the hardness values of Mo-ZrC jointed at 1973 K increases in the range of 0-10 μm. This indicates that Si diffuses at least by 10 μm into Mo in Mo-ZrC during bonding at 1973 K for 5.4 ks.

AB - Joining of oxidation-resistant Mo-Si-B multiphase alloy and to heat-resistant Mo-ZrC in-situ composite was studied through observation of microstructural evolution and measurement of hardness near the joint interface. As jointed at 1773 K for 7.2 ks, Mo3Si is formed in Mo-ZrC because of the non-equilibrium state between Mo and Mo5Si3. As jointed at 1973 K for 5.4 ks, a reactant containing Mo, Zr and Si is formed along the interface between Mo-Si-B and Mo-ZrC. Si is enriched in prior ZrC particles away from the interface in distances of 0 to about 4 μm. The hardness of Mo-ZrC after jointed at 1773 K shows no change near the joint interface in the range beyond 5 μm. On the other hand, the hardness values of Mo-ZrC jointed at 1973 K increases in the range of 0-10 μm. This indicates that Si diffuses at least by 10 μm into Mo in Mo-ZrC during bonding at 1973 K for 5.4 ks.

KW - A. Molybdenum silicides

KW - B. Phase identification

KW - C. Joining

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Joining of oxidation-resistant Mo-Si-B multiphase alloy to heat-resistant Mo-ZrC in-situ composite

Abstract

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