Fracture behaviour of P/M Cr-V ledeburitic steel with different surface roughness

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F11%3A00361261" target="_blank" >RIV/68081723:_____/11:00361261 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Fracture behaviour of P/M Cr-V ledeburitic steel with different surface roughness

Original language description

The samples made from the Vanadis 6 PM ledeburitic tool steel were surface machined to different quality and heat treated by standard regime of the processing. Three point bending tests were carried out on processed samples. It was found that the flexural strength decreased with decreasing surface quality. The lowering of flexural strength has been accompanied with the decrease of the plastic component of plastic straining preceeding to fracture initiation (work of fracture) of the material. It indicates that the surface roughness leads to the crack initiation before a larger plastic deformation of the material can be developed. Based on the results it can be suggested that to prevent the cracking of tools in the practice it is essential to make a surfaře machining (grinding, lapping, polishing) to as high quality as possible.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

JG - Metallurgy, metal materials

OECD FORD branch

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Project

<a href="/en/project/GA101%2F09%2F1821" target="_blank" >GA101/09/1821: Mechanical and fracture properties of multilayered ceramic/ceramic and ceramic/metal materials with graded layers</a><br>

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2011

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Materiálové inžinierstvo - Materials Engineering

ISSN

1335-0803

e-ISSN

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Volume of the periodical

-

Issue of the periodical within the volume

18

Country of publishing house

SK - SLOVAKIA

Number of pages

8

Pages from-to

36-43

UT code for WoS article

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EID of the result in the Scopus database

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