单相含Mg高熵耐腐蚀合金粉末及其制备方法技术
Single-phase Mg high entropy corrosion resistant alloy powder and its preparation method
The invention discloses a single phase Mg high entropy corrosion resistant alloy powder material and a preparation method, which belongs to the field of corrosion resistant alloy technology. The chemical formula of the corrosion resistant alloy powder is MgxTiAlFeNiCr (x = 0.6 ~ 1.4). According to the chemical formula of the metal powder, the Mg powder with purity higher than 99.5%, the rest of the metal powder is more than 99%, more than 200 of all the size of raw powder. The raw materials were poured into stainless steel tanks, and the mechanical alloying wet grinding 80 to 120h, the ball to material ratio of 20:1, the control agent is n-heptane, and the ball mill speed is 300 ~ 500rpm. After the ball milling, a high entropy alloy powder made up of a single FCC phase was obtained by vacuum removal of n-heptane in the glove box. The method has the advantages of simple preparation, high efficiency, high yield and no pollution. The high entropy alloy powder obtained has the advantages of low price, small density and excellent corrosion resistance.
【技术实现步骤摘要】
单相含Mg高熵耐腐蚀合金粉末及其制备方法
本专利技术属于耐腐蚀合金
，具体涉及一种单相含Mg高熵耐腐蚀合金粉末的材料体系及其制备方法。
技术介绍
高熵合金是近年来发展十分迅猛的一类合金材料，由于其能产生迟滞扩散效应、晶格畸变效应和“鸡尾酒”效应等高熵效应，从而导致一系列的优异特性，如：高的强度和硬度、优异的耐磨性能、耐高温性能和好的耐腐蚀性能等[A.V.Kuznetsova,D.G.Shaysultanov,N.D.Stepanov,G.A.Salishchev,O.N.Senkov,MaterialsScienceandEngineeringA,533(2012),107.]。最近人们发展了一系列的高熵耐腐蚀合金，例如：AlCoCrFeNi2.1、CuCoCrNiFe、CuYZrTiHf、CoCrFeNiW、CuZrAlTiNi、AlCoCrFeTi和TiNbHfZrTi等。这些合金具有简单的体心立方(BCC)或面心立方(FCC)晶体结构。其中，有些合金显示了比304不锈钢更高的腐蚀电位、更低的腐蚀电流速度；如AlCoCrFeNi2.1高熵合金粉末在10％...
【技术保护点】
一种单相含Mg高熵耐腐蚀合金粉末，其特征在于，所述合金粉末的分子式为MgxTiAlFeNiCr，其中：x＝0.6～1.4。
【技术特征摘要】
1.一种单相含Mg高熵耐腐蚀合金粉末，其特征在于，所述合金粉末的分子式为MgxTiAlFeNiCr，其中：x＝0.6～1.4。2.如权利要求1所述单相含Mg高熵耐腐蚀合金粉末的制备方法，其特征在于包括如下步骤：(1)按合金粉末分子式中的合金原子百分比称取原料金属粉末；其中：Mg粉的纯度不低于99.5％，其余原料金属粉末纯度不低于99％，所有原...
【专利技术属性】
技术研发人员：斯庭智，徐文祥，张庆安，柳东明，李永涛，
申请(专利权)人：安徽工业大学，
类型：发明
国别省市：安徽,34
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