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- Wakui Takashi
- J-PARC Center Japan Atomic Research Agency
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- Ishii Hideaki
- Metal Technology Co. Ltd.
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- Naoe Takashi
- J-PARC Center Japan Atomic Research Agency
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- Kogawa Hiroyuki
- J-PARC Center Japan Atomic Research Agency
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- Haga Katsuhiro
- J-PARC Center Japan Atomic Research Agency
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- Wakai Eiichi
- J-PARC Center Japan Atomic Research Agency
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- Takada Hiroshi
- J-PARC Center Japan Atomic Research Agency
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- Futakawa Masatoshi
- J-PARC Center Japan Atomic Research Agency
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<p>The structure of the target vessel for the spallation neutron source will be modified. The Invar alloy which has a low coefficient of thermal expansion has to be reinforced by enclosing it completely in stainless steel using hot isostatic pressing bonding to reduce the thermal deformation of the additional flange. We examined the optimum temperature conditions for HIP bonding the Invar alloy and 316L stainless steel. The metallographic observation and mechanical tests on specimens bonded at 700°C, 900°C, 1100°C and 1200°C were conducted. The experimental results showed that the bonding region increased when the bonding temperature increased, but the tensile strength reduced when the bonding temperatures increased. The tensile strength of a specimen bonded at 1200°C was approximately 10% lower than that of the Invar bulk. From the residual stress analysis using the ABAQUS code, the tensile stress near the bonding region of the specimen bonded at 700°C was found to be 84 MPa; this stress increased with the bonding temperature up to 90 MPa. From these results, it is concluded that the optimum temperature for bonding temperature was 900°C.</p>
収録刊行物
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- MATERIALS TRANSACTIONS
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MATERIALS TRANSACTIONS 60 (6), 1026-1033, 2019-06-01
公益社団法人 日本金属学会
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詳細情報 詳細情報について
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- CRID
- 1390845713069576448
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- NII論文ID
- 40021904668
- 130007653142
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- NII書誌ID
- AA1151294X
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- ISSN
- 13475320
- 13459678
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- NDL書誌ID
- 029707413
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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