TC4 is a titanium alloy, and its elastic modulus is lower than that of pure titanium, which can be measured.
The elastic modulus of titanium is about 55% of that of iron. When titanium is used as a structural material, its low elastic modulus is a disadvantage.
Industrial pure titanium is divided into three grades according to its impurity content: TA 1, TA2 and TA3.
The interstitial impurity elements of these three kinds of industrial pure titanium gradually increase, so their mechanical strength and hardness also increase step by step, but their plasticity and toughness decrease accordingly.
Extended data:
Properties of titanium alloys;
Titanium is a new metal, and its properties are related to impurities such as carbon, nitrogen, hydrogen and oxygen. The purity of titanium iodide is less than 0. 1%, but its strength is low and its plasticity is high.
The properties of 99.5% industrial pure titanium are: density ρ=4.5g/ cm3, melting point 1725℃, thermal conductivity λ= 15.24W/(m.K), tensile strength σb=539MPa, elongation δ=25%, and area shrinkage ψ =.
Classification of titanium alloys:
Titanium is an allotrope isomer with a melting point of 1668℃, and a close-packed hexagonal lattice structure below 882℃, which is called α titanium; It has a body-centered cubic lattice structure above 882℃, which is called β titanium.
Using the different characteristics of the above two structures of titanium, adding appropriate alloying elements, and gradually changing the phase transformation temperature and phase content, titanium alloys with different structures can be obtained. At room temperature, titanium alloys have three matrix structures. Titanium alloys can be divided into the following three categories: α alloy, (α+β) alloy and β alloy. China is represented by TA, TC and TB respectively.
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