Development of Novel Nickel Brazing Filler Metals Based on High Entropy Alloys

钎焊是一种连接材料的方法，具有许多独特和有用的特点。在这个过程中，一种额外的合金，称为填充金属，被熔化在两个要连接的部件之间。液体湿润接头，凝固后形成相对牢固的导电接头。独特的是，这种方法可以连接不同的金属和陶瓷，和零件的薄的横截面无视线到接头。钎焊接头在许多应用中都有应用，包括在航空航天喷气发动机等先进系统中。该项目建立在谢菲尔德大学和曼彻斯特大学以及VBC集团公司之间的CDT项目的最新发展基础上。在这项工作中，开发了几种用于钎焊镍的新型钎焊合金填充金属，我们打算在这项工作的基础上，进一步开发这些合金或设计新的合金，研究诸如用于金属与陶瓷结合的活性金属钎焊，或用于温度超过1200℃的高温钎焊等发展。

Brazing is a method of joining materials with many unique and useful features. In the process, an additional alloy, called a filler metal, is melted between the two parts to be joined. The liquid wets the joint and on solidification forms a relatively strong, conductive joint. Uniquely this method can join dissimilar metals and ceramics, and parts of thin cross section with no line of sight to the joint. Brazed joints feature in many applications, including in advanced systems such as aerospace jet engines. This project builds on recent developments in a CDT project between both the Universities of Sheffield and Manchester, and the company VBC group. In this work, several novel brazing alloy filler metals were developed for the brazing of nickel, and we intend to build on this work, potentially developing these alloys further or designing new ones, looking at such developments as active metal brazing for the bonding of metals to ceramics, or very high temperature brazing for use at temperatures in excess of 1200C.