Effect of Notch and Hardness on the Failure of Steel by Induction Hardening
碩士 === 大同大學 === 材料工程學系(所) === 102 === This study investigates in the different hardness and different groove, U-shaped, V-shaped and no groove, for medium carbon steel, S45C, SCM440, SNCM439, crack after high frequency hardened. Austenitized all specimens at 850℃ and tempered at 170~670℃. And we got...
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2014
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| Online Access: | http://ndltd.ncl.edu.tw/handle/xyw6zg |
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ndltd-TW-102TTU051590382019-05-15T21:32:55Z http://ndltd.ncl.edu.tw/handle/xyw6zg Effect of Notch and Hardness on the Failure of Steel by Induction Hardening 切槽及基材硬度對鋼材高週波硬化產生破裂之影響 Kuan-Chueh Liao 廖冠爵 碩士 大同大學 材料工程學系(所) 102 This study investigates in the different hardness and different groove, U-shaped, V-shaped and no groove, for medium carbon steel, S45C, SCM440, SNCM439, crack after high frequency hardened. Austenitized all specimens at 850℃ and tempered at 170~670℃. And we got the specimens for 28 to 55 HRC. Selected specimens were high frequency induction heated at 950℃ and oil quenched. Higher hardness specimens were appearing crack easier. Add alloying elements or not is influence the resistance of crack produce. Lower hardness SCM440 and SNCM439 specimens are no cracks, but all S45C specimens appearing cracks. The U-shaped groove edge discontinuous spot is stress concentration points. All U-shaped groove crack is appearing at stress concentration points. Liu-Ho Chiu 邱六合 2014 學位論文 ; thesis 79 zh-TW |
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NDLTD |
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zh-TW |
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Others
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NDLTD |
| description |
碩士 === 大同大學 === 材料工程學系(所) === 102 === This study investigates in the different hardness and different groove, U-shaped, V-shaped and no groove, for medium carbon steel, S45C, SCM440, SNCM439, crack after high frequency hardened. Austenitized all specimens at 850℃ and tempered at 170~670℃. And we got the specimens for 28 to 55 HRC. Selected specimens were high frequency induction heated at 950℃ and oil quenched. Higher hardness specimens were appearing crack easier. Add alloying elements or not is influence the resistance of crack produce. Lower hardness SCM440 and SNCM439 specimens are no cracks, but all S45C specimens appearing cracks. The U-shaped groove edge discontinuous spot is stress concentration points. All U-shaped groove crack is appearing at stress concentration points.
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| author2 |
Liu-Ho Chiu |
| author_facet |
Liu-Ho Chiu Kuan-Chueh Liao 廖冠爵 |
| author |
Kuan-Chueh Liao 廖冠爵 |
| spellingShingle |
Kuan-Chueh Liao 廖冠爵 Effect of Notch and Hardness on the Failure of Steel by Induction Hardening |
| author_sort |
Kuan-Chueh Liao |
| title |
Effect of Notch and Hardness on the Failure of Steel by Induction Hardening |
| title_short |
Effect of Notch and Hardness on the Failure of Steel by Induction Hardening |
| title_full |
Effect of Notch and Hardness on the Failure of Steel by Induction Hardening |
| title_fullStr |
Effect of Notch and Hardness on the Failure of Steel by Induction Hardening |
| title_full_unstemmed |
Effect of Notch and Hardness on the Failure of Steel by Induction Hardening |
| title_sort |
effect of notch and hardness on the failure of steel by induction hardening |
| publishDate |
2014 |
| url |
http://ndltd.ncl.edu.tw/handle/xyw6zg |
| work_keys_str_mv |
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| _version_ |
1719117300028669952 |