T12钢基体表面熔渗高熵合金(含Mo)工艺及性能研究.docx
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- T12 基体 表面 熔渗高熵 合金 Mo 工艺 性能 研究
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1、T12钢基体表面熔渗高熵合金工艺及性能研究摘要:高熵合金具有一些传统合金所无法比拟的优异性能,如高强度、高硬度、高耐磨耐腐蚀性、高热阻、高电阻等,从而成为在材料科学和凝聚态物理领域中继大块非晶之后一个新的研究热点。作为碳素工具钢的一种,T12钢常用来生产冲压模具和切削刃具,将高熵合金作为涂层涂到T12钢表面,可显著提高T12工具表面的硬度和耐磨性,提高产品的使用寿命。本文通过一系列实验来研究高熵合金在不同金属基体材料上获得的熔渗层的工艺、组织和性能。主要进行以下实验:高熵合金在T12钢和T8基体表面熔渗工艺实验,对熔渗高熵合金的材料表面进行显微组织观察,测定熔渗后材料的表面硬度。关键词:高熵合
2、金、T12钢、表面熔渗T12 steel substrate surface aluminized high entropy alloy organization and performance studyAbstract: high entropy alloys have the excellent properties of some traditional alloy, such as high strength, high hardness, high wear resistance, corrosion resistance, heat resistance, high resist
3、ance, etc., to become in the field of materials science and condensed matter physics relay bulk amorphous after a new research hotspot. At present, the research of high entropy alloys are more concentrated in the as-cast performance testing, we know that the as-cast under the performance of the prod
4、uct has a natural defects (such as caused by heat bilges cold shrink hole, osteoporosis, etc.), and after the heat treatment and hot working performance study lack of reports.As a kind of carbon tool steel, T12 steel with high hardness, wearability, but toughness is low, in view of high entropy allo
5、ys with high hardness, strength, wear resistance and other characteristics, considering the high entropy alloys as coatings to T12 steel surface, melt infiltration, so that we can get higher T12 steel strength.To this end, we will conduct a series of comparative experiments. To study the high entrop
6、y alloy melt infiltration in different metal substrate material for aluminized layer on organization and performance. We mainly make the following experiments: the high entropy alloys in T12 steel substrate surface melt infiltration process experiment, aluminized high entropy alloys microstructure o
7、bservation, mechanical properties such as hardness, wear resistance experiments.Keywords: high entropy alloys, T12 steel, surface melt infiltration目录1前言11.1概述11.2高熵合金的定义11.3 高熵合金的组织特点11.4高熵合金的性能特点21.4.1高强度与硬度21.4.2良好的耐磨性31.4.3良好的塑性和韧性31.4.4耐热性31.4.5耐腐蚀性41.5涂层技术41.5.1热喷涂技术41.5.2.物理气象沉积技术(PVD)41.5.3.化
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