45钢基体表面熔渗高熵合金组织及性能研究.docx
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1、45钢基体表面熔渗高熵合金组织及性能研究摘要:高熵合金是一种新型的合金,一般由五种以上主要元素构成,每种元素的原子百分比在5%35%之间。与传统合金相比,具有优良的性能。比如:耐高温、耐腐蚀、高强度、高硬度等。可以这样说,高熵合金的发现大大提高了合金的性能,与此同时,也扩大了金属的选择范围。涂层是涂料一次施涂所得到的固态连续膜,是为了防护,绝缘,装饰等目的,涂布于金属,织物,塑料等基体上的塑料薄层。涂料可以为气态、液态、固态,通常根据需要喷涂的基质决定涂料的种类和状态。近年来,金属表面的涂层引起了人们极大的注意。表面涂层可提高零件的耐腐蚀、摩擦、磨损和疲劳。人们都致力于寻找具有超高玻璃化形成能
2、力的合金。有人认为非晶或玻璃的原子混乱度高或熵高,而高熵必然导致高的玻璃化形成能力,所以有人提出一个混乱理论。但是,后来有学者发现高熵和高的玻璃化形成能力并不一致,倒是发现有些高混合熵合金可以形成单相固溶体。关键词:高熵合金,涂层,表面熔渗45 steel substrate surface aluminized high entropy alloys technology and performance studyAbstract: The high entropy alloy is one kind of new alloys. Generally it inclouds five or
3、more major elements, atomic percentage of each element in the 5% to 35%. Comparing with the traditional alloys, the high entropy alloy have excellent performance, for instance hight emperature resistant, corrosion resistant, high strength, high hardness, and soon. We can say that the discovery of hi
4、gh entropy alloy improves the properties of alloys, meanwhile, also expands metal selection.The coating is a solid continuous film coating a coating obtained, for protection,insulation, decoration and other objective, coating on the metal, fabric, plastic thin plastic substrates. Gaseous, liquid, pa
5、int can be solid, usually according to the decision matrix spraying type and the state of coating. In recent years,coating on the surface of metal has aroused great attention. Surface coating can improve the corrosion resistance of the parts, friction, wear and fatigue.This paper presents the high e
6、ntropy alloy is the development of bulk amorphous alloys based on twentieth Century 90s. Some people think that non crystalor glass atomic disorder or entropy is high, and the high entropy will inevitably lead to the high glass forming ability, so some people propose a chaos theory.However, later sc
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