铁对铸态高铝青铜组织和性能的影响  

Effect of Iron on As-cast High Aluminum Bronze’s Microstructure and Properties

作　　者：路阳[1] 张鹤[1] 苏义祥[1] 李文生[1] 卢凯[1] 张思成[1] 

机构地区：[1]兰州理工大学甘肃省有色金属新材料省部共建国家重点实验室,甘肃兰州730050

出　　处：《铸造》2007年第2期199-201,共3页Foundry

基　　金：甘肃省科技攻关项目(GS992-A52-052)。

摘　　要：研究了不同加入量的Fe对高铝青铜铸态组织和性能的影响。结果表明,随着Fe含量增加,合金晶粒得到细化,硬化相K相增多,其分布由弥散粒状向球状或梅花状转变,(α+γ2)共析体由少量不连续分布变为围绕K相的孤立点状分布,适量Fe(4%)可以提高合金抗压强度和硬度,过多Fe则将导致抗压强度和硬度降低。The influence of different iron content on As-cast High Aluminum Bronze＇s Microstructure and Properties have been studied. Results shown that with the increasing of Fe content, matrix grain size decreases, content of hard K-phase increases, and the sharp of K-phase changes from dispersed dot type to sphere and cinquefoil, eutectoid （α＋γ2） changes from discontinuous block to isolated point which surrounds the K-phase. Depress strength and hardness of the developed alloy have been increased with proper content （4%）, while mechanical properties have been deteriorated with overfull iron content.

关 键 词：铸态高铝青铜 铁 组织 性能 

分 类 号：TG113[金属学及工艺—物理冶金]