高手给翻一（英译汉）The behaviour of a few AI-Mg alloys (up to 7.1 wt%

高手给翻一（英译汉）
The behaviour of a few AI-Mg alloys (up to 7.1 wt% Mg) has been studied on heating in air at 500C for 8h or more. The precipitation of a spinel phase, MgAl2O4, is found to take place on the surface and along the transverse section (depth) of the specimen. The alloys seem to be resistant to internal oxidation below 4.5% Mg and thereafter prone to it. Beryllium modification does not suppress the progress of internal oxidation taking place in the AI-Mg alloys. The results have been interpreted on the basis of anodized photomicrographs and X-ray diffraction data.
Conclusions
1. The occurrence of internal oxidation in A1-Mg alloys has been demonstrated with the help of an anodic etching technique and X-ray diffraction work.
2. A1-Mg alloys when oxidized at 500 C seem to be resistant to internal oxidation below 4.5% Mg and are thereafter prone to internal oxidation.
3. The process manifests itself in the form of precipitates appearing mostly on cell boundaries while oxidizing the specimen in air at 500 C for 8 h or more. The precipitate appears after 24, 16 and 8 h for alloys containing 4.5%, 6% and 7% Mg.
4. The precipitate was identified by X-ray diffraction to be MgA1204.
5. Beryllium modification does not suppress the process of internal oxidation taking place in A1-Mg alloys.

一些AIMg合金(7.1 wt %行为Mg)在加热被学习了在500C的空气8h或更多的.发现一个尖晶石阶段,MgAl2O4的降雨雪发生在表面和沿横断面(深度)标本.合金似乎是有抵抗性对内部氧化作用在4.5%毫克以下和尔后有倾向对它.铍修改不压制发生在AIMg合金的内部氧化作用进展.结果根据正极化的显微象片和X光衍射数据被解释了.
结论
1.内部氧化作用发生在A1Mg合金的在阳极浸蚀法技术和X光衍射工作帮助下展示了.
2.A1Mg熔合,当氧化在C似乎是有抵抗性对内部氧化作用在4.5%毫克以下并且尔后是有倾向对内部氧化作用的500.
3.过程体现自己以出现主要在细胞界限的沉淀物的形式,当氧化在空气的标本在500 C 8的h或更多时.沉淀物在24,16和8包含4.5%,6%和7%毫克的合金的h以后出现.
4.沉淀物是由X光衍射确定的是MgA1204.
5.铍修改不压制发生在A1Mg合金的内部氧化作用的过程.