Cracking has been a thorny issue during the forging of the Hasteloy C-276 alloy. To address this issue, we analyzed the causes of their cracking and investigated the effects of homogenization on their tissues. In this article, we will detail our research process and results aimed at improving the forging yield of the Hastelloy C-276 alloy. C276 Hastelloy
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First, we observed and analyzed the as-cast microstructure of the Hastelloy C-276 alloy. We found that there were a large number of precipitated phases in the as-cast structure, which led to cracking during the forging process. In order to solve this problem, we have taken measures to increase the homogenization heating temperature and extend the holding time.
Specifically, the specimen was kept incubated at 1170 for 10 hours and then air-cooled. After this treatment, we found that the segregation phenomenon was significantly improved, and the forging effect was good. The results show that the forging yield of Hastelloy C-276 alloy can be significantly improved by optimizing the homogenization process.
In our study, we used metallurgical microscopy, scanning electron microscopy and electron probes to analyze the structure and composition of the alloy in detail. These analytical methods provide us with critical information about the presence and distribution of precipitated phases, the degree of segregation of the elements, and the enrichment of the elements at the grain boundaries.
In addition, mechanical property tests such as tensile tests and impact tests were carried out to evaluate the properties of the optimized Hastelloy C-276 alloy. These test results show that the optimized alloy has excellent mechanical properties and can meet the requirements of practical applications.
In conclusion, our results show that the precipitated phase in the as-cast structure of Hastelloy C-276 alloy is the main cause of forging cracking. By optimizing the homogenization process, the dendrite segregation phenomenon can be reduced and the forging yield rate can be improved. At the same time, the optimized alloy also has excellent mechanical properties and can meet the requirements of practical applications. Our research results provide an important theoretical basis and technical support for the optimization of the forging process of Hastelloy C-276 alloy.