Influence of pore characteristics on microstructure, mechanical properties and corrosion resistance of selective laser sintered porous Ti–Mo alloys for biomedical applications

2013 ◽  
Vol 105 ◽  
pp. 121-129 ◽  
Author(s):  
Fangxia Xie ◽  
Xinbo He ◽  
Shunli Cao ◽  
Min Mei ◽  
Xuanhui Qu
Keyword(s):  
Mechanical Properties ◽  
Corrosion Resistance ◽  
Biomedical Applications ◽  
Pore Characteristics ◽  
Porous Ti ◽  
Mechanical Properties And Corrosion

scholarly journals CHARACTERIZATION AND COMPARISON OF MECHANICAL PROPERTIES AND CORROSION RESISTANCE OF TI-10MO-20NB, TI-6AL-4V AND TI-CP ALLOYS FOR BIOMEDICAL APPLICATIONS

2021 ◽  
Author(s):  
Patrick de Lima Vieira ◽  
Lucas de Mendonça Neuba ◽  
Raí Felipe Pereira Junio ◽  
Sergio Neves Monteiro
Keyword(s):  
Mechanical Properties ◽  
Corrosion Resistance ◽  
Elastic Modulus ◽  
Biomedical Applications ◽  
The Body ◽  
Ti Alloy ◽  
Promising Alternative ◽  
Biomedical Material ◽  
Biological Compatibility ◽  
Mechanical Properties And Corrosion

One of the main biomedical material for implants, the Ti-6Al-4V alloy, over time generates oxides of V and Al that accumulate in the body and cause cytotoxic effects. Researches have been making an effort for developing an alternative β metastable Ti alloy that combines corrosion resistance, biocompatibility and good mechanical properties. In view of this scenario, the present work aims to characterize a Ti-10Mo-20Nb alloy and compare the results obtained with a commercial purity Ti alloy and Ti-6Al-4V alloy. Ti-10Mo-20Nb samples were subjected to heat treatment at 1000°C, after that they were water quenched. A hot swagging process at 900°C was applied resulting on a cross section reduction of 80%. The alloy was characterized by optical microscopy, scanning electron microscopy (SEM), Vickers microhardness and the linear polarization technique. For the Ti-10Mo-20Nb alloy the ratio between the hardness and the elastic modulus was of 3.22, the hardness value of 238 HV and the elastic modulus of 74 GPa. The Ti-10Mo-20Nb alloy showed a better mechanical as well as biological compatibility due to the non-cytotoxic of its alloy elements, Mo and NB, in spite of the lower corrosion resistance value when compared to other alloys, it is still possessing reasonable resistance to corrosion and develops a remarkable passivation layer. As such Ti-10Mo-20Nb is a promising alternative for biomedical applications due to its superior mechanical properties and better biocompatibility with human bone.

REMANIT 4439

Alloy Digest ◽  
1993 ◽  
Vol 42 (11) ◽  
Keyword(s):  
Mechanical Properties ◽  
Corrosion Resistance ◽  
Stainless Steels ◽  
Crevice Corrosion ◽  
Heat Treating ◽  
Corrosion Resistant Steel ◽  
Resistant Steel ◽  
Low Carbon ◽  
Corrosion Resistant ◽  
Mechanical Properties And Corrosion

Abstract REMANIT 4439 is a highly corrosion resistant steel with low carbon content, an addition of nitrogen to enhance both mechanical properties and corrosion resistance, and higher molybdenum than most stainless steels to resist pitting and crevice corrosion in chloride media. This datasheet provides information on composition, physical properties, and elasticity. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SS-556. Producer or source: Thyssen Stahl AG.

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