High quality joining of C/C composites and high temperature refractory metal with inter-metal layer
Project/Area Number |
24560126
|
Research Category |
Grant-in-Aid for Scientific Research (C)
|
Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Production engineering/Processing studies
|
Research Institution | Kinki University (2015) Tokyo Institute of Technology (2012-2014) |
Principal Investigator |
|
Project Period (FY) |
2012-04-01 – 2016-03-31
|
Project Status |
Completed (Fiscal Year 2015)
|
Budget Amount *help |
¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2013: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2012: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
|
Keywords | C/C複合材 / ろう付 / 活性金属 / 炭化物 / 熱膨張係数 / Ni基合金 / Nb合金 / 複合材料 / 耐熱超合金 / 接合 / 残留応力 / 炭素系複合材 / 耐熱合金 / 超合金 / 高温接合 / 応力緩和 / 炭素系複合材料 / ニッケル基超合金 |
Outline of Final Research Achievements |
For C/C composites/Ni-based refractory metal high quality joining, Ni-based alloy was made. 58Ni-20Cr-22Si alloy and 57Ni-20Cr-22Si alloy had good wettability on both C/C composites and Inconel-600 Ni-base alloy. These Ni-base alloy had the liquidus temperature lower than 1200ºC and can be used for high temperature brazing. The shear strength of C/C composites/Inconel-600 brazed joint with these metals was 2MPa. Crack was observed in C/C composites near joint interface. Enhancement of joint strength is considered to be due to the residual stress by CTE value difference between C/C composites and Inconel-600. By inserting Nb foil in the mating surfaces, the joint strength was improved. The interfacial bonding is, however, sound between both C/C composites and these alloys and Inconel-600 and these alloys, and with these alloys, high quality bonding is considered to be able to achieve.
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Report
(5 results)
Research Products
(14 results)