Microstructure, mechanical property and corrosion behavior of interpenetrating (HA + β-TCP)/MgCa composite fabricated by suction casting

X. Wang; L. H. Dong; J. T. Li; X. L. Li; X. L. Ma; Y. F. Zheng

doi:10.1016/j.msec.2013.06.018

Microstructure, mechanical property and corrosion behavior of interpenetrating (HA + β-TCP)/MgCa composite fabricated by suction casting

X. Wang^*
, L. H. Dong
, J. T. Li
, X. L. Li
, X. L. Ma
, Y. F. Zheng

^*Corresponding author for this work

Harbin Engineering University
Harbin University of Science and Technology

Research output: Contribution to journal › Article › peer-review

45 Scopus citations

Abstract

The novel interpenetrating (HA + β-TCP)/MgCa composites were fabricated by infiltrating MgCa alloy into porous HA + β-TCP using suction casting technique. The microstructure, mechanical properties and corrosion behaviors of the composites have been evaluated by means of scanning electron microscopy (SEM), X-ray diffraction (XRD), mechanical testing, electrochemical and immersion tests. It was shown that the composites had compact structure and the interfacial bonding between MgCa alloy and HA + β-TCP scaffolds was very well. The ultimate compressive strength of the composites was about 500-1000 fold higher than that of the original porous scaffolds, and it still retained quarter-half of the strength of the bulk MgCa alloy. The electrochemical and immersion tests indicated that the corrosion resistance of the composites was better than that of the MgCa matrix alloy, and the corrosion products of the composite surface were mainly Mg(OH)₂, HA and Ca ₃(PO₄)₂. Meanwhile, the mechanical and corrosive properties of the (HA + β-TCP)/MgCa composites were adjustable by the choice of HA content.

Original language	English
Pages (from-to)	4266-4273
Number of pages	8
Journal	Materials Science and Engineering C
Volume	33
Issue number	7
DOIs	https://doi.org/10.1016/j.msec.2013.06.018
State	Published - Oct 2013
Externally published	Yes

Keywords

(HA + β-TCP)/MgCa composites
Corrosion behaviors
Mechanical property
Microstructure

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10.1016/j.msec.2013.06.018

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title = "Microstructure, mechanical property and corrosion behavior of interpenetrating (HA + β-TCP)/MgCa composite fabricated by suction casting",

abstract = "The novel interpenetrating (HA + β-TCP)/MgCa composites were fabricated by infiltrating MgCa alloy into porous HA + β-TCP using suction casting technique. The microstructure, mechanical properties and corrosion behaviors of the composites have been evaluated by means of scanning electron microscopy (SEM), X-ray diffraction (XRD), mechanical testing, electrochemical and immersion tests. It was shown that the composites had compact structure and the interfacial bonding between MgCa alloy and HA + β-TCP scaffolds was very well. The ultimate compressive strength of the composites was about 500-1000 fold higher than that of the original porous scaffolds, and it still retained quarter-half of the strength of the bulk MgCa alloy. The electrochemical and immersion tests indicated that the corrosion resistance of the composites was better than that of the MgCa matrix alloy, and the corrosion products of the composite surface were mainly Mg(OH)2, HA and Ca 3(PO4)2. Meanwhile, the mechanical and corrosive properties of the (HA + β-TCP)/MgCa composites were adjustable by the choice of HA content.",

keywords = "(HA + β-TCP)/MgCa composites, Corrosion behaviors, Mechanical property, Microstructure",

author = "X. Wang and Dong, \{L. H.\} and Li, \{J. T.\} and Li, \{X. L.\} and Ma, \{X. L.\} and Zheng, \{Y. F.\}",

year = "2013",

month = oct,

doi = "10.1016/j.msec.2013.06.018",

language = "英语",

volume = "33",

pages = "4266--4273",

journal = "Materials Science and Engineering C",

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TY - JOUR

T1 - Microstructure, mechanical property and corrosion behavior of interpenetrating (HA + β-TCP)/MgCa composite fabricated by suction casting

AU - Wang, X.

AU - Dong, L. H.

AU - Li, J. T.

AU - Li, X. L.

AU - Ma, X. L.

AU - Zheng, Y. F.

PY - 2013/10

Y1 - 2013/10

N2 - The novel interpenetrating (HA + β-TCP)/MgCa composites were fabricated by infiltrating MgCa alloy into porous HA + β-TCP using suction casting technique. The microstructure, mechanical properties and corrosion behaviors of the composites have been evaluated by means of scanning electron microscopy (SEM), X-ray diffraction (XRD), mechanical testing, electrochemical and immersion tests. It was shown that the composites had compact structure and the interfacial bonding between MgCa alloy and HA + β-TCP scaffolds was very well. The ultimate compressive strength of the composites was about 500-1000 fold higher than that of the original porous scaffolds, and it still retained quarter-half of the strength of the bulk MgCa alloy. The electrochemical and immersion tests indicated that the corrosion resistance of the composites was better than that of the MgCa matrix alloy, and the corrosion products of the composite surface were mainly Mg(OH)2, HA and Ca 3(PO4)2. Meanwhile, the mechanical and corrosive properties of the (HA + β-TCP)/MgCa composites were adjustable by the choice of HA content.

AB - The novel interpenetrating (HA + β-TCP)/MgCa composites were fabricated by infiltrating MgCa alloy into porous HA + β-TCP using suction casting technique. The microstructure, mechanical properties and corrosion behaviors of the composites have been evaluated by means of scanning electron microscopy (SEM), X-ray diffraction (XRD), mechanical testing, electrochemical and immersion tests. It was shown that the composites had compact structure and the interfacial bonding between MgCa alloy and HA + β-TCP scaffolds was very well. The ultimate compressive strength of the composites was about 500-1000 fold higher than that of the original porous scaffolds, and it still retained quarter-half of the strength of the bulk MgCa alloy. The electrochemical and immersion tests indicated that the corrosion resistance of the composites was better than that of the MgCa matrix alloy, and the corrosion products of the composite surface were mainly Mg(OH)2, HA and Ca 3(PO4)2. Meanwhile, the mechanical and corrosive properties of the (HA + β-TCP)/MgCa composites were adjustable by the choice of HA content.

KW - (HA + β-TCP)/MgCa composites

KW - Corrosion behaviors

KW - Mechanical property

KW - Microstructure

UR - https://www.scopus.com/pages/publications/84881155027

U2 - 10.1016/j.msec.2013.06.018

DO - 10.1016/j.msec.2013.06.018

M3 - 文章

C2 - 23910342

AN - SCOPUS:84881155027

SN - 0928-4931

VL - 33

SP - 4266

EP - 4273

JO - Materials Science and Engineering C

JF - Materials Science and Engineering C

IS - 7

ER -

Microstructure, mechanical property and corrosion behavior of interpenetrating (HA + β-TCP)/MgCa composite fabricated by suction casting

Abstract

Keywords

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