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Experimentelle Untersuchung der mechanischen Eigenschaften und der Verschleißcharakterisierung der mittels Rühr‐Gieß‐Prozess hergestellten mit Titandiborid und Borkarbid verstärkten Aluminiumlegierung Al‐Si12CulMg1
Author(s) -
Vadivel P.,
Velmurugan C.,
Chelladurai S.J.S.
Publication year - 2020
Publication title -
materialwissenschaft und werkstofftechnik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.285
H-Index - 38
eISSN - 1521-4052
pISSN - 0933-5137
DOI - 10.1002/mawe.201800166
Subject(s) - materials science , titanium diboride , boron carbide , microstructure , composite material , ultimate tensile strength , alloy , aluminium , aluminium alloy , titanium carbide , metallurgy , boron , casting , 6063 aluminium alloy , carbide , ceramic , chemistry , organic chemistry
Abstract LM13 aluminium alloy (Al−Si12CulMg1) with titanium diboride (TiB 2 ) and boron carbide (B 4 C) particulate hybrid composites have been prepared using stir casting process. Wt% of titanium diboride is varied from 0–10 and constant 5 wt% boron carbide particles have been used to reinforce LM13 aluminium alloy. Microstructure of the composites has been investigated and mechanical properties viz., hardness, the tensile strength of composites have been analyzed. Wear behavior of samples has been tested using a pin on disc apparatus under varying load (20 N–50 N) for a sliding distance of 2000 m. Fracture and wear on the surface of samples have been investigated. Microstructures of composites show uniform dispersion of particles in LM13 aluminium alloy. Hardness and tensile strength of composites increased with increasing wt % of reinforcements. Dry sliding wear test results reveal that weight loss of composites increased with increasing load and sliding distance. Fracture on the surface of composites reveals that the initiation of crack is at the interface of the matrix and reinforcement whereas dimples are observed for LM13 aluminium alloy. Worn surface of composites shows fine grooves and delamination is observed for the matrix.