Some new characteristics of the strengthening phase in β-phase magnesium–lithium alloys containing aluminum and beryllium
Some new characteristics of the strengthening phase in β-phase magnesium–lithium alloys containing aluminum and beryllium
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DOI：
10.1016/j.msea.2004.01.017
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发表时间：
2004-04
期刊：
影响因子：
6.4
通讯作者：
G. Song;M. Staiger;M. Kral
中科院分区：
文献类型：
--
作者：
G. Song;M. Staiger;M. Kral
对不同铝含量的β相镁锂合金中的强化相进行了硬度、光学显微镜和X射线衍射研究，给出了强化相影响β基体中晶格畸变和α-Mg析出的一些新特征。在强化相沉淀物的存在下，基体晶格经历显著的应变，其特征在于峰加宽。β-基质相图案中的峰宽可以提供由强化相沉淀物引起的晶格应变的指示。本文还解释了强化相分解为稳定的AlLi化合物而产生α-Mg析出的原因。
Hardness, optical-microscopy and X-ray diffraction studies on the strengthening phase in β-phase magnesium–lithium alloys containing different content of aluminum were carried out to give some new characteristics of the strengthening phase affecting lattice distortion and α-Mg precipitation in the β-matrix. In the presence of the strengthening-phase precipitates, the matrix lattice undergoes substantial strain characterized by peak broadening. The peak width in the β-matrix phase pattern can provide an indication of lattice strain caused by the strengthening-phase precipitates. The origin of α-Mg precipitation resulting from the decomposition of the strengthening phase into stable AlLi compound is also explained in the present work.