دورية أكاديمية
The Effects of Laser Surface Hardening on Microstructural Characteristics and Wear Resistance of AISI H11 Hot Work Tool Steel
| العنوان: | The Effects of Laser Surface Hardening on Microstructural Characteristics and Wear Resistance of AISI H11 Hot Work Tool Steel |
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| المؤلفون: | Šebek M., Falat L., Kováč F., Petryshynets I., Horňak P., Girman V. |
| المصدر: | Archives of Metallurgy and Materials, Vol 62, Iss 3, Pp 1721-1726 (2017) |
| بيانات النشر: | Polish Academy of Sciences, 2017. |
| سنة النشر: | 2017 |
| المجموعة: | LCC:Mining engineering. Metallurgy LCC:Materials of engineering and construction. Mechanics of materials |
| مصطلحات موضوعية: | Hot work tool steel, laser hardening, microstructure, hardness, wear resistance, Mining engineering. Metallurgy, TN1-997, Materials of engineering and construction. Mechanics of materials, TA401-492 |
| الوصف: | The present study deals with the effects of laser surface treatment on microstructure evolution and wear resistance of AISI H11 hot work tool steel in quenched and tempered condition. The most upper laser-affected zone is characterized by re-melted microstructure consisting of dendrite cells with fresh non-tempered martensite, retained austenite and inter-dendritic carbidic network. The subsolidus microstructure just beneath the re-melted zone represents the most laser surface hardened zone consisting of fresh non-tempered martensite with fine and coarse carbides as a result of overheating the original QT substrate microstructure. The highest microhardness values in the range from 775 to 857 HV were measured for the LSH microstructure and the most softened microstructure exhibited the minimum hardness of 530 HV. The laser treated samples showed the improvement of their surface wear resistance by 35%. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2300-1909 2017-0262 |
| العلاقة: | http://www.degruyter.com/view/j/amm.2017.62.issue-3/amm-2017-0262/amm-2017-0262.xml?format=INTTest; https://doaj.org/toc/2300-1909Test |
| DOI: | 10.1515/amm-2017-0262 |
| الوصول الحر: | https://doaj.org/article/576d64d6df654f309b49819ede918a11Test |
| رقم الانضمام: | edsdoj.576d64d6df654f309b49819ede918a11 |
| قاعدة البيانات: | Directory of Open Access Journals |
| تدمد: | 23001909 20170262 |
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| DOI: | 10.1515/amm-2017-0262 |