中国有色金属学报（英文版）
中國有色金屬學報（英文版）
중국유색금속학보（영문판）
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
2014年
z1期
68-74
,共7页
镁%连续铸造%可加工性%EBSD
鎂%連續鑄造%可加工性%EBSD
미%련속주조%가가공성%EBSD
magnesium%continuous casting%workability%electron backscatter diffraction (EBSD)
通过微观组织和固有内在缺陷观察，研究了加工方法对 ZK60A 变形镁合金加工性能的影响。利用半连续铸造、半连续铸造后挤压及模具铸造方法制备了3种合金，并在2种变形速率下进行高温压缩，研究合金的变形能力。利用EBSD和TEM研究了合金的晶粒结构，采用X 射线扫描仪检测了合金的内部缺陷。与传统模具铸造合金相比，半连续铸造合金具有更好的变形能力，且后续的挤压工艺可以提高合金的变形能力。
通過微觀組織和固有內在缺陷觀察，研究瞭加工方法對 ZK60A 變形鎂閤金加工性能的影響。利用半連續鑄造、半連續鑄造後擠壓及模具鑄造方法製備瞭3種閤金，併在2種變形速率下進行高溫壓縮，研究閤金的變形能力。利用EBSD和TEM研究瞭閤金的晶粒結構，採用X 射線掃描儀檢測瞭閤金的內部缺陷。與傳統模具鑄造閤金相比，半連續鑄造閤金具有更好的變形能力，且後續的擠壓工藝可以提高閤金的變形能力。
통과미관조직화고유내재결함관찰，연구료가공방법대 ZK60A 변형미합금가공성능적영향。이용반련속주조、반련속주조후제압급모구주조방법제비료3충합금，병재2충변형속솔하진행고온압축，연구합금적변형능력。이용EBSD화TEM연구료합금적정립결구，채용X 사선소묘의검측료합금적내부결함。여전통모구주조합금상비，반련속주조합금구유경호적변형능력，차후속적제압공예가이제고합금적변형능력。
The effects of fabrication processing methods on the workability of Mg-Zn-Zr wrought magnesium alloy (ZK60A) were investigated based on the microstructure and inherent internal defects. Three different billets, semi-continuously cast, semi-continuously cast and subsequently extruded, and die-cast, were fabricated and uniaxially compressed at elevated temperatures and two different strain rates to determine the deformation capabilities. The grain structure of the billets was investigated using electron backscatter diffraction (EBSD) and transmission electron microscopy (TEM). The internal defects were inspected by an X-ray scanner. The enhanced deformability was observed in semi-continuously cast billet compared to the one fabricated by conventional die-casting, and the subsequent extrusion further improved the deformability.
