CN107723508A

CN107723508A - A kind of nontoxic high temperature resistant shape memory alloy

Info

Publication number: CN107723508A
Application number: CN201610652934.2A
Authority: CN
Inventors: 叶秀兰
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-08-11
Filing date: 2016-08-11
Publication date: 2018-02-23

Abstract

A kind of nontoxic high temperature resistant shape memory alloy, belong to Metallic Materials and Heat Treatment technical field, it is made up of Ti, Zn, C, Nb, Al, Mg, Cr and Ni element, its component is rationally clear, in the present invention, while alloy purity is improved, adding titanium elements further reduces negative difference effect, cathode hydrogen evolution and hydride generation, improves the corrosion resisting property of alloy；The solid solubility of titanium in the magnesium alloy is big, can play a part of solution strengthening, improves the intensity of alloy；The addition of titanium can reduce harmful trace meter such as Fe, Cu, Ni content in metal material, generate the higher binary of fusing point or multi-element compounds, these compounds can slagging separate out, reduce harmfulness of the metallic inclusion in solid metallic, key is that its plasticity at room temperature is greatly improved.

Description

A kind of nontoxic high temperature resistant shape memory alloy

Technical field

The invention belongs to Metallic Materials and Heat Treatment technical field, is related to a kind of nontoxic high temperature resistant shape memory alloy.

Background technology

Memorial alloy is due to super-elasticity, SME and good biocompatibility, it is considered to be a kind of Extremely promising bio-medical material, applied to biomedical sector, as each in the whole abnormal silk in dentistry, orthopedic Kind orthopaedics repair the device and pipe inner support etc..Biomedical material must also meet in physiology in addition to the physicochemical property to be necessary Job requirement under environment, i.e., there should be good biocompatibility, this is that biomedical material is different from the basic of other materials Feature.But alloy can corrode in the presence of body fluid, cause the tissue reaction of toxicity.It is single in existing memorial alloy High noble metal and the precious metal alloys biocompatibility of phase structure is best.But high noble metal and precious metal alloys are expensive. Thus, it is desirable to have what non-high noble metal and precious metal alloys manufactured, the memorial alloy of good biocompatibility.

The content of the invention

The present invention is high for existing marmem cost, and some memorial alloys also have the deficiencies of burn into intoxicating, The present invention provides a kind of nontoxic high temperature resistant shape memory alloy, by changing its formula, obtains marmem mechanical property To significantly improving, meet the requirement of medical domain.

The technical scheme is that：

A kind of nontoxic high temperature resistant shape memory alloy, it is characterised in that：It is made up of Ti, Zn, C, Nb, Al, Mg, Cr and Ni element, Its weight percent composition for Zn 0.25%~1.2%, C 1.5%~2.5%, Nb 0.8%~1.3%, Al 0.2%~1.2%, Mg 1.2%~4.5%, Cr 0.05%~0.1%, Ni 0.1%~2%, remaining is Ti.

The weight percent component is Zn 0.25%, C 1.5%, Nb 0.8%, Al 0.2%, Mg 1.2%, Cr 0.05%th, Ni 0.1%, remaining is Ti.

The weight percent component be Zn 1.2%, C 2.5%, Nb 1.3%, Al 1.2%, Mg 4.5%, Cr 0.1%, Ni 2%, remaining is Ti.

The weight percent component be Zn 0.5%, C 2%, Nb 1.2%, Al 0.8%, Mg 2.6%, Cr 0.08%, Ni 0.15%, remaining is Ti.

Beneficial effects of the present invention are：A kind of nontoxic high temperature resistant shape memory alloy proposed by the present invention, component are rationally clear Clear, in the present invention, while alloy purity is improved, adding titanium elements further reduces negative difference effect, cathode hydrogen evolution and hydrogen Compound generates, and improves the corrosion resisting property of alloy；The solid solubility of titanium in the magnesium alloy is big, can play a part of solution strengthening, carry The intensity of high alloy；The addition of titanium can reduce harmful trace meter such as Fe, Cu, Ni content in metal material, generation fusing point compared with High binary or multi-element compounds, these compounds can slagging separate out, reduce harmfulness of the metallic inclusion in solid metallic, Key is that its plasticity at room temperature is greatly improved.

Embodiment

The invention will be further described below：

A kind of nontoxic high temperature resistant shape memory alloy, is made up of Ti, Zn, C, Nb, Al, Mg, Cr and Ni element, its weight percent group As Zn 0.25%~1.2%, C 1.5%~2.5%, Nb 0.8%~1.3%, Al 0.2%~1.2%, Mg 1.2%~ 4.5%th, Cr 0.05%~0.1%, Ni 0.1%~2%, remaining is Ti.

Embodiment 1

Weight percent component is Zn 0.25%, C 1.5%, Nb 0.8%, Al 0.2%, Mg 1.2%, Cr 0.05%, Ni 0.1%, remaining is Ti.

Embodiment 2

Weight percent component is Zn 1.2%, C 2.5%, Nb 1.3%, Al 1.2%, Mg 4.5%, Cr 0.1%, Ni 2%, Remaining is Ti.

Embodiment 3

Weight percent component is Zn 0.5%, C 2%, Nb 1.2%, Al 0.8%, Mg 2.6%, Cr 0.08%, Ni 0.15%, remaining is Ti.

Instant component is rationally clear, and in the present invention, while alloy purity is improved, adding titanium elements further reduces Negative difference effect, cathode hydrogen evolution and hydride generation, improve the corrosion resisting property of alloy；The solid solubility of titanium in the magnesium alloy is big, Solution strengthening can be played a part of, improve the intensity of alloy；The addition of titanium can reduce harmful trace meter in metal material such as Fe, Cu, Ni content, the higher binary of generation fusing point or multi-element compounds, these compounds can slagging separate out, reduce metal clip Harmfulness of the debris in solid metallic, key are that its plasticity at room temperature is greatly improved.

Claims

A kind of 1. nontoxic high temperature resistant shape memory alloy, it is characterised in that：By Ti, Zn, C, Nb, Al, Mg, Cr and Ni element group Into, its weight percent composition be Zn 0.25%~1.2%, C 1.5%~2.5%, Nb 0.8%~1.3%, Al 0.2%~ 1.2%th, Mg 1.2%~4.5%, Cr 0.05%~0.1%, Ni 0.1%~2%, remaining is Ti.
A kind of 2. nontoxic high temperature resistant shape memory alloy according to claim 1, it is characterised in that：The weight percent group It is divided into Zn 0.25%, C 1.5%, Nb 0.8%, Al 0.2%, Mg 1.2%, Cr 0.05%, Ni 0.1%, remaining is Ti.
A kind of 3. nontoxic high temperature resistant shape memory alloy according to claim 1, it is characterised in that：The weight percent group It is divided into Zn 1.2%, C 2.5%, Nb 1.3%, Al 1.2%, Mg 4.5%, Cr 0.1%, Ni 2%, remaining is Ti.
A kind of 4. nontoxic high temperature resistant shape memory alloy according to claim 1, it is characterised in that：The weight percent group It is divided into Zn 0.5%, C 2%, Nb 1.2%, Al 0.8%, Mg 2.6%, Cr 0.08%, Ni 0.15%, remaining is Ti.