往 Fe C Si B激光熔覆专用合金粉末中加入 Ti粉 ,结果表明 ,加 Ti粉后熔覆层与基体润湿性非常好 ,并且裂纹倾向大大减少。控制 Ti的加入量 ,可以获得组织均匀的细化的过共晶、共晶和亚共晶熔覆层 ,整个熔覆层弥散、均匀分布着大量硬颗...往 Fe C Si B激光熔覆专用合金粉末中加入 Ti粉 ,结果表明 ,加 Ti粉后熔覆层与基体润湿性非常好 ,并且裂纹倾向大大减少。控制 Ti的加入量 ,可以获得组织均匀的细化的过共晶、共晶和亚共晶熔覆层 ,整个熔覆层弥散、均匀分布着大量硬颗粒 ,而硬颗粒的数量、尺寸及形状随 Ti元素加入量的不同而有所改变 ,熔覆层显微硬度分布也非常均匀。展开更多
The influences of micro alloy and heat treatment procedure on the hardening of DJ108Ti alloy, which is based on the electrolytic Al Si(2 05%) Ti(0 25%) Fe(0 30%) multi component alloy, have been investigated...The influences of micro alloy and heat treatment procedure on the hardening of DJ108Ti alloy, which is based on the electrolytic Al Si(2 05%) Ti(0 25%) Fe(0 30%) multi component alloy, have been investigated. The results indicate that the micro alloy based on the multi component alloy makes α Al dendrites in DJ108Ti alloy refined; that the improved heat treatment procedure makes the eutectic Si phases granulated , the Fe phase refined, and the strengthening phases of Mg2Si and Al2Cu fully precipitated. The micro alloy and the heat treatment procedure harden DJ108Ti alloy and benefit the abrasion resistance of the alloy展开更多
文摘The influences of micro alloy and heat treatment procedure on the hardening of DJ108Ti alloy, which is based on the electrolytic Al Si(2 05%) Ti(0 25%) Fe(0 30%) multi component alloy, have been investigated. The results indicate that the micro alloy based on the multi component alloy makes α Al dendrites in DJ108Ti alloy refined; that the improved heat treatment procedure makes the eutectic Si phases granulated , the Fe phase refined, and the strengthening phases of Mg2Si and Al2Cu fully precipitated. The micro alloy and the heat treatment procedure harden DJ108Ti alloy and benefit the abrasion resistance of the alloy
