Production and Characterization of Stainless Steel Matrix Functional Graded Materials
Batuhan Özusta Yasin Akgül Hayrettin Ahlatçı Süleyman Yaşın İsmail Esen Yavuz Sun Yunus Türen
AbstractPowder metallurgy method is production of parts widely used today. This use is widely used in many areas of the steel materials industry, especially from powder metal parts produced by powder metallurgy method. Since these materials take the form of the final product at the end of production without requiring any machining process. Also, these materials can be used as an iron based bearing material because of the machine parts such as filter, cutting tool bits and they have self-lubricating property due to its porosity. The aim of this study is; stainless steel matrix, boron carbide reinforcement in different ratios (5%, 10%, 15%) is the production of functional graded material. For this reason, stainless steel and boron carbide powders were mixed in V-type mixer for 3 hours. After this process, the samples were produced by means of powder metallurgy under pressure of 45 MPa at 900°C in the hot press machine. The microstructure and boron carbide distribution of the produced samples were examined in the SEM device and hardness measurements were made in order to observe the changes in mechanical properties. When microstructures were examined, it was determined that boron carbides were distributed homogeneously. It was observed that the hardness increased as the rate of support and the transition between the stages increased.