Y.W.Yan1)
,
B.K.Wei2)
,
Z.Y.Fu1)
,
H.T.Lin2) and R.Z.Yuan1) 1) State Key Lab .of Advanced Technologyfor Materials Synthesisand Processing
,
Wuhan University of Technol ogy
,
Wuhan 430070
,
China 2) Institute of Materials
,
Huazhong University of Science and Technology
,
Wuhan 430074
,
China
金属学报(英文版)
Under aircondition,theinsitu TiCP/ Fecompositeshavebeen fabricated by a reactivecast ing route usingtheinexpensiveraw materials. The microstructuresofthecompositehavebeen studied by X ray diffraction,image analyzer and analyticalelectron microscopy. The me chanicalpropertiesand abrasive wearresistanceofboththeas castcompositeandthequenched composite havebeen measured. Theresultsshow thattheinsitu TiCparticles with a average sizeof 4 51μm exhibit a homogenous distribution inthe matrix, and an excellentinterface bonding between the particle and the matrix is achieved. As above microstructure features, thecomposite,especiallythequenched composite, hashigher mechanicalpropertiesand betterwear resistance,compared with high Cr whitecastiron.
关键词:
TiCP/ Fecomposite
,
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,
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Z.M.Xu1)
,
J.S.Zhen1)
,
H.F.Liu1) and L.M.Zhang2) 1)Departent of Chemistry
,
Huazhong University of Science and Technology
,
Wuhan 430074
,
China 2)Institute of Materials Science and Engineering
,
Wuhan University of Technology
,
Wuhan 430070
,
China
金属学报(英文版)
Thispaper proposed a new methodof producing Ceramic/ Metalfunctionally gradient mate rialby electroless platingtechnique. The experimentof producing SiC/ Ni PFGM wascar ried out with self made electroless plating facilities. The results show that the thickness of FGMcoating andthegradientdistribution ofcompositioncanbecontrolled byoptimizingelec trolessplating technology and changing the parameters such as plating time, the additionspeed and concentration of SiCparticles. Analysisdemonstratesthatthereisastrongrelation ship amongthe SiCcontent,the microstructureandthe mechanicalproperty ofthe FGM.
关键词:
electrolessplating
,
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