書誌事項
- タイトル別名
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- The Effect of Alloying Addition and Heat Treatment on High Temperature Strength and Structure of 18Cr-12Ni-3Mo Austenitic Heat Resisting Steel Containing Boron
- ボロン オ フクム 18Cr-12Ni-3Moケイ オーステナイト タイネツ コウ ノ コウオン キョウド ト ソシキ ニ オヨボス テンカ ゲンソ ト ネツ ショリ ノ エイキョウ
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説明
The effect of alloying element such as C, B, Ti and Nb, and heat treatment on the high temperature strength and micro structure of 18Cr-12Ni-3Mo austenitic heat resisting steels containing boron were investigated.<BR>In B addition, creep rupture strength increased with increasing B content, whereas in C addition, tit reached maximum at 0.2%C. These effects were ascribed mainly to a precipitation hardening duevto M23C6 occurring during creep. The effects of Ti and Nb additions on creep rupture strength were given as a function of (Ti+Nb)/C (atomic percent ratis) irrespective of C contents, and gave a maximum effect at (Ti+Nb)/C=0.4-0.8. Therefore, these effects of Ti and Nb additions were ascribed partly to a change in morphology and growth rate of M23C6, into which Ti and Nb were dissolved.<BR>Moreover, creep rupture strength increased with increasing solution temperature, up to 1250°C. Surprisingly, the eutectic structures had no negative effect upon creep rupture strength of the steels.<BR>Also, the complex borides in these alloys were identified by X ray and chemical analyses. The relation between the sort of borides and eutectic temperature was also discussed.
収録刊行物
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- 鉄と鋼
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鉄と鋼 54 (1), 48-68, 1968
一般社団法人 日本鉄鋼協会
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詳細情報 詳細情報について
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- CRID
- 1390282680128426240
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- NII論文ID
- 130005616186
- 110001486927
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- NII書誌ID
- AN00151251
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- ISSN
- 18832954
- 00211575
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- NDL書誌ID
- 8310565
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- データソース種別
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- JaLC
- NDL
- Crossref
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- 使用不可