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Effect of Phosphorus on Reheat Cracking of Cr-Mo Steels
http://hdl.handle.net/10076/3906
http://hdl.handle.net/10076/3906cddff6da-6dc0-469f-8b53-bb8b1bdf1dbd
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
AA008163410090004.PDF (922.0 kB)
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| Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||||||||||
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| 公開日 | 2007-07-02 | |||||||||||||
| タイトル | ||||||||||||||
| タイトル | Effect of Phosphorus on Reheat Cracking of Cr-Mo Steels | |||||||||||||
| 言語 | en | |||||||||||||
| 言語 | ||||||||||||||
| 言語 | eng | |||||||||||||
| 資源タイプ | ||||||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||||||
| 資源タイプ | departmental bulletin paper | |||||||||||||
| 著者 |
玉置, 維昭
× 玉置, 維昭
× 鈴木, 実平
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| 抄録 | ||||||||||||||
| 内容記述タイプ | Abstract | |||||||||||||
| 内容記述 | This study was devoted to the influence of phosphorus on reheat cracking sensitivity of Cr-Mo steels from the view points of the combined effect of phosphorus, chromium and molybdenum. The systhetic Cr-Mo steels melted in our laboratory were used. Their phosphorus contents were varied from 0.004 to 0.1wt% for five sets of Cr-Mo contents. The cracking sensitivity of steels was evaluated by the term of critical restraint stress to produce cracking obtained by the modified implant method for reheat cracking. The cracking sensitivity was discussed being related to the phosphorus segregation to prior-austenite grain boundary. The phosphorus concentration of grain boundary was semi-quantitatively determined by measuring the depth of grain boundary etched by a certain etchant. The results are summarized as follows. (1)There exists a critical phosphorus content, pcrit, from which the cracking sensitivity remarkably increases with the increase of phosphorus content. pcrit values are : above 0.02, 0.01, 0.008, 0.014 and below 0.01wt% for 0Cr-0.5Mo, 0.5Cr-0.5Mo, 1Cr-0.5Mo, 1.3Cr-0.5Mo, and 2Cr-1Mo steels, respectively. (2)Phosphorus segregated to the prior-austenite grain boundary as early as in as-welded condition, and the degree of segregation corresponds to the degree of cracking sensitivity. (3)The grain boundary concentration of phosphorus becomes the maximum by tempering at about 500℃, which corresponds to the temperature of crack initiation. | |||||||||||||
| 書誌情報 |
Research reports of the Faculty of Engineering, Mie University 巻 9, p. 9-24, 発行日 1984-12-20 |
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| ISSN | ||||||||||||||
| 収録物識別子タイプ | PISSN | |||||||||||||
| 収録物識別子 | 0385-6208 | |||||||||||||
| 書誌レコードID | ||||||||||||||
| 収録物識別子タイプ | NCID | |||||||||||||
| 収録物識別子 | AA00816341 | |||||||||||||
| フォーマット | ||||||||||||||
| 内容記述タイプ | Other | |||||||||||||
| 内容記述 | application/pdf | |||||||||||||
| 著者版フラグ | ||||||||||||||
| 出版タイプ | VoR | |||||||||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||||||||
| その他のタイトル | ||||||||||||||
| 言語 | ja | |||||||||||||
| 値 | Cr-Mo鋼の再熱割れに及ぼすPの影響 | |||||||||||||
| 出版者 | ||||||||||||||
| 出版者 | Faculty of Engineering, Mie University | |||||||||||||
| 資源タイプ（三重大） | ||||||||||||||
| 値 | Departmental Bulletin Paper / 紀要論文 | |||||||||||||
