高压和热处理对铝青铜微观组织的影响  

Effect of High Pressure and Heat Treatment on Microstructure of Aluminum Bronze

作　　者：杨景茹[1] 刘琳[2] 任艳军[3] 刘建华[4] 张瑞军[4] 

机构地区：[1]河北建材职业技术学院信息机电系,河北秦皇岛066004 [2]唐山职业技术学院,河北唐山063000 [3]河北科技师范学院分析测试中心,河北秦皇岛066004 [4]燕山大学亚稳材料制备技术与科学国家重点实验室,河北秦皇岛066004

出　　处：《高压物理学报》2008年第3期318-322,共5页Chinese Journal of High Pressure Physics

摘　　要：借助金相、扫描电子显微镜(SEM)/能谱仪(EDS)及X射线衍射(XRD)等方法,研究了高压和热处理对铝青铜微观组织的影响。结果表明:铝青铜经750℃温度、6 GPa压力处理后所获得的α相的晶粒尺寸较经750℃温度、常压处理后所获得的α相晶粒尺寸小;当铝青铜经高压处理后再经750℃保温2 min常压处理时,组织中出现细条状的α相,且热处理后的冷却速度越大,细条状α相的数量越多,颗粒状α相的数量越少。The effects of high pressure and heat treatment on microstructure of aluminum bronze were investigated by means of metallographic,scanning electronic microscope（SEM）/energy disersive spectrometer（EDS） and X-ray diffraction（XRD）. Results showed that the grain size of a phase in the aluminum bronze after the treatment at 750℃ and 6 GPa high pressure is smaller than that after treatment at 750 ℃and normal pressure. When the aluminum bronze was treated at 750℃ and 6 GPa and followed by a treatment at 750 ℃ for 2 min,thin stripy a phase occurred in the aluminum bronze,and its amount increased but the amount of granular a phase decreased with increase of the cooling rate.

关 键 词：铝青铜 高压 热处理 微观组织 

分 类 号：TG146.2[一般工业技术—材料科学与工程]