摘要
采用光学显微镜、扫描电镜、微机控制电子万能试验机等仪器研究了620、650、680、720、750、780℃单级时效和720℃+650℃双级时效对GH2132合金显微组织及力学性能的影响。结果表明:双级时效的抗拉强度和剪切强度高于单级时效的抗拉强度和剪切强度,抗拉强度达到1130 MPa,剪切强度达到720 MPa。且在620~780℃的温度范围内进行单级时效时,随着时效温度的提高,合金的抗拉强度和剪切强度呈现先升高后降低的趋势,在720℃时抗拉强度达到最大值1065 MPa,剪切强度达到最大值685 MPa。
Effects of single-stage aging at 620,650,680,720,750,780 ℃ and two-stage aging at 720 ℃ + 650 ℃ on the microstructure and mechanical properties of GH2132 alloy were studied by means of optical microscope and microcomputer controlled electronic universal testing machine. The results show that the tensile strength and shear strength of the alloy double aging reach 1130 MPa and 720 MPa respectively,both are higher than that of the single aging. In addition,for single-stage aging within the temperature range of 620-780 ℃,with the increase of aging temperature,the tensile strength and shear strength of the alloy show a trend of first increasing and then decreasing,reach 1065 MPa and 685 MPa respectively at 720 ℃.
作者
冯光勇
宫晓春
Feng Guangyong;Gong Xiaochun(School of Mechanical Engineering,Tianjin Sino-German University of Applied Sciences,Tianjin 300350,China;Xi'an Aerospace-Huayang Mechanical&Electrical Equipment Co.,Ltd.,Xi'an Shaanxi 721000,China)
出处
《金属热处理》
CAS
CSCD
北大核心
2020年第1期96-100,共5页
Heat Treatment of Metals
基金
天津市企业科技特派员项目(18JCTPJC50800)
