Mechanical degradation of porous titanium with entangled structure filled with biodegradable magnesium in Hanks' solution.
The degradation behavior of the porous titanium with entangled structure filled with biodegradable magnesium (p-Ti/Mg) in Hanks' solution was investigated. It was found that the p-Ti/Mg composite had higher strength than pure magnesium and porous titanium with entangled structure (p-Ti). Although the magnesium in p-Ti/Mg was completely dissolved in Hanks' solution after immersion for 104 h, the rest of the sample still maintained strength of about 86 MPa. Moreover, the produced porousness (due to magnesium-degradation) could provide channels for the ingrowth and transportation of bone cells. However, the high corrosion rate of p-Ti/Mg is still a problem when used as a candidate biomedical material, which needs further improvement.
State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.
Qiuyan
Q
Li
State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.
Guofeng
G
Jiang
State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; National Engineering Research Center of Light Alloys Net Forming, Shanghai Jiao Tong University, Shanghai 200240, China.
Cunlong
C
Wang
State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; National Engineering Research Center of Light Alloys Net Forming, Shanghai Jiao Tong University, Shanghai 200240, China.
Jie
J
Dong
State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China. Electronic address: ghe@sjtu.edu.cn.
Guo
G
He
D020341:Absorbable Implants; D000497:Alloys / Q000737:chemistry; D001826:Body Fluids / Q000737:chemistry*; D018786:Bone Substitutes / Q000737:chemistry*; D003343:Corrosion; D055119:Elastic Modulus; D006244:Hardness; D007552:Isotonic Solutions / Q000737:chemistry*; D008274:Magnesium / Q000737:chemistry*; D008422:Materials Testing; D016062:Porosity; D013718:Tensile Strength; D014025:Titanium / Q000737:chemistry*
D000497:Alloys; D018786:Bone Substitutes; C072670:Hanks Balanced Salt Solution; D007552:Isotonic Solutions; D014025:Titanium; D008274:Magnesium
Corrosion; Hanks' solution; Hydrogen evolution; Semi-biodegradable biomaterial; Titanium–magnesium composite