Directional Solidification of a Nickel-Based Superalloy Product Structure Fabricated on Stainless Steel Substrate by Electron Beam Additive Manufacturing

Heat Input Effect on the Structure of ZhS6U Alloy Products Produced by Wire-Feed Electron-Beam Additive Manufacturing

“…In our previous research [10] we show that the inclination of the dendrite colonies toward the layer printing occurs due to a distortion of the crystallization front. In turn, the concave crystallization front results from its rather As presented in Fig.…”

“…This alloy relates to heat-resistant alloys of the first generation, which was intended for the production of aircraft engine parts with an equiaxial structure. But according to previous research [10,11], additive manufacturing allowed gaining a directed structure of heat-resistant alloy samples of the first and second generations. In our research [10], additive manufacturing of samples was conducted on an austenite steel, in vacuum conditions.…”

“…But according to previous research [10,11], additive manufacturing allowed gaining a directed structure of heat-resistant alloy samples of the first and second generations. In our research [10], additive manufacturing of samples was conducted on an austenite steel, in vacuum conditions. The heat-resistant alloy rods were fed to the electron beam for melting.…”

Формирование Изделий Из Жаропрочного Никелевого Сплава Методом Проволочной Электронно-Лучевой Аддитивной Технологии

“…Данная тенденция наблюдается и в аддитивных технологиях [2], когда в качестве подложки используют аналогичный монокристаллический материал. Однако ранее было показано [3], что условия локальной металлургии (малые размеры ванны расплава, высокие температурные градиенты и скорости охлаждения) реализуемые в аддитивном производстве позволяют добиться направленного роста структур при формировании изделия на подложке из чужеродного, но изоморфного материала.…”

Heat Input Effect on Microstructure and Mechanical Properties of Electron Beam Additive Manufactured (EBAM) Cu-7.5wt.%Al Bronze

“…Varying the heat input as a function of the built-up wall height makes it possible to control cooling and therefore the solidification rate. However, no approach for forming the desired grain structures is guaranteed, especially in materials inclined to form large columnar grains such as nickel superalloys [30], titanium [31], copper [32], bronze [33], nickel titanium [34,35], etc. In connection with this, finding out the limiting maximum and minimum values of the heat input for deposition of each material is an important task.…”