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| 041 |
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|a eng
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| 044 |
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|b ليبيا
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| 100 |
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|9 407761
|a Abudaia, Fouad B.
|e Author
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| 245 |
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|a Effectiveness of Cryotreatment on Steel With Lowpotential for Carbide Pricipitation and Austenite Retention
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| 260 |
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|b جامعة طرابلس - نقابة أعضاء هيئة التدريس
|c 2015
|g خريف
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| 300 |
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|a 41 - 51
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| 336 |
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|a بحوث ومقالات
|b Article
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| 520 |
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|b The improvement of hardness and wear resistance of tool steels due to deep cryogenic treatment (DCT) is attributed to the ability of the process to transform the retained austenite. Additional contribution could be due to stimulation of carbides precipitation and the generated dislocations. All above effects act simultaneously and their assessments in the DCT process is usually done collectively. It is aimed in this study to assess the significance of applying of DCT to a tool steel which has low potential for carbide precipitation and austenite retention over conventional hardening treatment (CT). For this purpose hot worked tool steel L6 was chosen. Structure with and without retained austenite is then obtained by varying the austenitization temperature. Samples to receive DCT were deep freeze for 10 hours before tempering. Results showed that DCT had improved the hardness and wear resistance even when the structure contain no retained austenite or carbide precipitation. The improvement is even better when transformation of retained austenite is involved. XRD profiles revealed broader peaks for DCT samples comparing with conventionally treated samples which attributed more probably to the refinement of the martensitic structure rather than to the increase in dislocation density.
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| 653 |
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|a الصحة
|a الوقاية والعلاج
|a مستخلصات الأبحاث
|a الأمراض
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| 692 |
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|b Deep Cryogenic Treatment (Dct)
|b Hardness
|b Wear Resistance
|b Retained Austenite
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| 700 |
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|9 572854
|a Fessatwi, Enas Abdulnaser
|e Co-Author
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| 773 |
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|4 التربية والتعليم
|6 Education & Educational Research
|c 011
|e Al-OstaTh
|l 009
|m ع9
|o 1594
|s مجلة الأستاذ
|v 000
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| 856 |
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|u 1594-000-009-011.pdf
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| 930 |
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|d y
|p y
|q n
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| 995 |
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|a EduSearch
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| 999 |
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|c 770779
|d 770779
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