Generation of Plastically Deformed Layer Induced by Drill Cutting of Ferrous Sintered Steels

Autor:	Satoshi Wakihama, Nobuyasu Kawai
Rok vydání:	2003
Předmět:	Materials science Drill Mechanical Engineering Metallurgy Metals and Alloys Microstructure Layer thickness Indentation hardness Industrial and Manufacturing Engineering Ferrous Drill hole Metal flow Materials Chemistry Layer (electronics)
Zdroj:	Journal of the Japan Society of Powder and Powder Metallurgy. 50:571-576
ISSN:	1880-9014 0532-8799
DOI:	10.2497/jjspm.50.571
Popis:	The plastically deformed layer induced by drill cutting of 4650 sintered steels using prealloyed and elemental powders were investigated in this study. The microstructures, pore elimination and microhardness on the surface of cut holes were determined to evaluate the surface deformed layer thickness. The results obtained are summarized as follows;1. The internal pore area tends to increase from the drill hole surface toward inside.2. The metal flow is observed at the drill hole surface, but the boundary is not so clear that the thickness of plastically deformed layer cannot be measured.3. Microhardness is comparatively easy to estimate the thickness of plastically deformed layer.4. The rate of pore area becomes smaller with the progress of cutting.5. It is easy to measure the plastically deformed layer thickness of ferrous sintered steels in order of microhardness, internal pores area and microstructures.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::ecb6bed8fb09a4943e512b9b5f6f1b28 https://doi.org/10.2497/jjspm.50.571 Zobrazit plný text záznamu