Effect of Forging Process on Microstructure and Mechanical Properties of Powder Forged alloy Contained Molybdenum
This study investigates the effects of forging process and Mo content on the density,microstructure,static mechanical properties and dynamic friction properties of the powder forging alloys.Fe-2Cu-1C-xMo(x=0.5,0.85 and 1.46)sintered samples are forged for this purpose.The results indicate that the forging process can effectively increase the alloy density.The average density of forged samples can reach 7.78 g/cm3 and the relative density can reach 98.32%.The forged microstructure is mainly composed of bainite,martensite and troostite.Moreover,The forging temperature has a great influence on the hardness,transverse rupture strength and wear resistance of the material.When the forging temperature is 1050℃,the hardness is as high as HRB116.38.When the forging temperature is 1000℃,the transverse rupture strength reaches 2578MPa.when the forging temperature is 950℃,the friction coefficient of the alloy that contains 1.46wt.%Mo is only 0.088,which is significantly lower than other materials and has small fluctuation.In addition,the bending fracture form of the forged sample is a ductile-brittle hybrid fracture.
Molybdenum content Forging temperature Microstructure Mechanical properties
Sun Lu Zhang Jifeng Qiu Tianxu Shen Xiaoping
School of Materials Science and Engineering,Nanjing University of Science and Technology,China Engineering Training Center,Nanjing University of Science and Technology,China
国际会议
北京
英文
225-231
2018-09-16（万方平台首次上网日期，不代表论文的发表时间）