<th id="5nh9l"></th><strike id="5nh9l"></strike><th id="5nh9l"><noframes id="5nh9l"><th id="5nh9l"></th><strike id="5nh9l"></strike>
<progress id="5nh9l"><noframes id="5nh9l"><th id="5nh9l"><noframes id="5nh9l">
<th id="5nh9l"></th> <strike id="5nh9l"><noframes id="5nh9l"><span id="5nh9l"></span>
<progress id="5nh9l"><noframes id="5nh9l"><span id="5nh9l"><noframes id="5nh9l"><span id="5nh9l"></span><strike id="5nh9l"><noframes id="5nh9l"><strike id="5nh9l"></strike>
<span id="5nh9l"><noframes id="5nh9l">
<span id="5nh9l"><noframes id="5nh9l">
<span id="5nh9l"></span><span id="5nh9l"><video id="5nh9l"></video></span>
<th id="5nh9l"><noframes id="5nh9l"><th id="5nh9l"></th>
<progress id="5nh9l"><noframes id="5nh9l">

噴射成形制備La62Al15.7(Cu,Ni)22.3塊體非晶合金

Preparation of a La62Al15.7(Cu,Ni)22.3 bulk amorphous alloy by spray forming

  • 摘要: 采用噴射沉積成形方法制備了La62Al15.7(Cu,Ni)22.3塊體非晶合金.結果表明,沉積態La62Al15.7(Cu,Ni)22.3非晶合金比以往報道的采用甩帶法制備的同成分非晶合金具有更大的約化玻璃轉變溫度和更寬的過冷液相區.非晶的晶化實驗表明,晶化初期多種晶相同時結晶析出.483K退火時,在非晶基體中析出Al和AlNi.503K退火時進一步析出La和未知相.La62Al15.7(Cu,Ni)22.3非晶合金在573K退火沒有新相產生,合金晶化態組織由Al、AlNi、La和未知相組成.

     

    Abstract: A La62Al15.7(Cu,Ni)22.3 bulk amorphous alloy was prepared by spray forming. Experimental results show that the reduced glass transition temperature and super-cooled liquid region of the La62Al15.7(Cu,Ni)22.33 bulk amorphous alloy prepared by spray forming are larger than those of the melt-spun alloy with the same composition reported previously. The crystallization behavior of the as-deposited alloy was investigated by DSC and XRD in order to reveal characteristics of this technique. It shows that several phases precipitate simultaneously during the early crystallization process. When annealed at 483 K, Al and AlNi precipitates from the amorphous matrix, while La and certain unknown phase appear subsequently when the annealing temperature is 503 K. No other phase precipitates from the matrix when the alloy is annealed at 573 K. The microstructure of the crystallized sample consists of Al, AlNi, La and a kind of unknown phase.

     

/

返回文章
返回
<th id="5nh9l"></th><strike id="5nh9l"></strike><th id="5nh9l"><noframes id="5nh9l"><th id="5nh9l"></th><strike id="5nh9l"></strike>
<progress id="5nh9l"><noframes id="5nh9l"><th id="5nh9l"><noframes id="5nh9l">
<th id="5nh9l"></th> <strike id="5nh9l"><noframes id="5nh9l"><span id="5nh9l"></span>
<progress id="5nh9l"><noframes id="5nh9l"><span id="5nh9l"><noframes id="5nh9l"><span id="5nh9l"></span><strike id="5nh9l"><noframes id="5nh9l"><strike id="5nh9l"></strike>
<span id="5nh9l"><noframes id="5nh9l">
<span id="5nh9l"><noframes id="5nh9l">
<span id="5nh9l"></span><span id="5nh9l"><video id="5nh9l"></video></span>
<th id="5nh9l"><noframes id="5nh9l"><th id="5nh9l"></th>
<progress id="5nh9l"><noframes id="5nh9l">
259luxu-164