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Effect of Tempering Time on Fatigue Strength of Ni-Cr.Steel
https://nagano-nct.repo.nii.ac.jp/records/427
https://nagano-nct.repo.nii.ac.jp/records/427f4e909bc-81c3-4728-83fd-5e77a3b66783
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
nagano_nct-27-07.pdf (1.4 MB)
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| アイテムタイプ | Departmental Bulletin Paper(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2013-02-19 | |||||
| タイトル | ||||||
| タイトル | Effect of Tempering Time on Fatigue Strength of Ni-Cr.Steel | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | nickel-chromium steel | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | tempering, explane bending test | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | fatigue strength | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | fractography | |||||
| 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 |
TakeshiHaga, Takeshi
× TakeshiHaga, Takeshi× NOGUCHI, Toru |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | A bending fatigue test was carried out on the Ni-Cr steel specimen quenched and tempered at various temperatures, and a compariative study was made on fatigue limit and crack expanstion rates, particularly with regard to the influence of tempering time. The results were as follows: (1) Fatigue strength was clearly influenced by tempering time, while hardness showed little variation with the tempering time. Specimens tempered at 623K and 723K showed the lowest fatigue limit at holding time of 2.4ks, but it increased in specimens with both shorter holding time of 4.8ks and 7.2ks, showing that the fatigue strength was improved. (2) However, the specimens tempered at 673K and 873K showed the highest fatigue at holding times of 2.4ks, and it decreased with shorter and holding times. (3) In all the specimens, the lowering fatigue strength was identified by characteristic microfracture appearance with quasi-cleavage facts in striation-like markings. (4) With long holding times of 7.2ks, the m value, that characterizes crack propagation rates, was decreased to 1.4 for all the specimens as compared with the m value of 1.7 to 2.4 in specimens tempered for 2.4ks. This suggested that the crack propagation rate was in relation to tempering time. (Received September, 1993) | |||||
| 書誌情報 |
長野工業高等専門学校紀要 巻 27, p. 53-65, 発行日 1993-12-28 |
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| 出版者 | ||||||
| 出版者 | 長野工業高等専門学校 | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0286-1909 | |||||
| 書誌レコードID | ||||||
| 収録物識別子タイプ | NCID | |||||
| 収録物識別子 | AN00179170 | |||||
| フォーマット | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | application | |||||
| 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 | |||||
