Ultrafine-grained treatment process on FGH4096 alloy
Ultrafine-grained treatment (multiple forging and heat treatment) were carried out on FGH4096 alloy to get ultrafine grain with grain being of 1-5μm. OM, SEM, TEM and tensile test were used to study the action of ultrafine-grained treatment on improving structure and properties. The tensile properties of the alloy processed under ultrafine-grained treated have shown quite satisfactory levels, which ultimate strength (UTS) reach 1730Mpa and yield strength (YS) values reach 1470Mpa at room temperature. The apperance of advanced strength has originated chiefly form not only the persence of fine grains, but also structure of grain boundaries and diaperce pricipitations of secondary phase. A better combination of mechanical properties achieved by use of ultrafine-grained treatment makes it possible to explore the dual property turbine disc to its maximum potential for FGH 4096 alloy.
Multiple forging ultrafine grain mechanical properties dual-property turbine disc
NING Yongquan YAO Zekun GUO Hongzhen TAO Yu ZHANG Yiwen
College of Materials Science and Engineering, Northwestern Polytechnical University, Xi’An 710072,Ch College of Materials Science and Engineering, Northwestern Polytechnical University, Xi’An710072,Chi High Temperature Materials Research Institute, China Iron and Steel Research Institute Group,Beijing
国际会议
第九届加工技术进展国际会议(9th International Conference on Progress of Machining Technology)
昆明
英文
694-697
2009-04-25（万方平台首次上网日期，不代表论文的发表时间）