英语翻译铝密度小,质量轻.纯铝的可塑性很髙,可进行各种压力加工,但纯铝强度低,不能做结构材料,人们发现向铝中加入适量的某些合金元素,再经冷加工或热处理制成铝合金,可以大幅度地提

英语翻译铝密度小,质量轻.纯铝的可塑性很髙,可进行各种压力加工,但纯铝强度低,不能做结构材料,人们发现向铝中加入适量的某些合金元素,再经冷加工或热处理制成铝合金,可以大幅度地提
英语翻译
铝密度小,质量轻.纯铝的可塑性很髙,可进行各种压力加工,但纯铝强度低,不能做结构材料,人们发现向铝中加入适量的某些合金元素,再经冷加工或热处理制成铝合金,可以大幅度地提髙强度.强度极限值可提高至50〜60公斤/平方毫米,相当于低合金钢的强度
铝合金因具有质轻、强度髙、良好的导电导热性、易于加工变形,无毒环保等优良的特点,且铝资源丰富,因而铝及其合金的用途是相当广泛的.研究具有高强、高韧性的铝铜合金是当今铝合金研究领域的一个热门.
铝中最常加入的合金元素是铜（Cu）、镁（Mg)、硅（Si)、锰（Mn〉、锌（Zn),在各种铝合金中,Al-Cu系合金具有较髙的强韧化潜力.通过熔炼铸造工艺得到铝合金铸件,由于低的气体含量,可以通过对铸件进行充分的固溶处理来实现合金元素的固溶强化,提髙合金的力学性能.固溶处理之后又可以通过时效强化,进一步提髙铸件的强度和硬度.本实验以铝铜合金为研究对象,通过熔炼Al-50%Cu合金与纯铝得到含铜5%的铝合金,将得到的铸件经过不同时间的固溶和时效热处理,通过观察金相,得到热处理时间对合金的组织和性能的影响规律.
关键词:铝铜合金、熔炼、固溶处理、时效处理.
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英语翻译铝密度小,质量轻.纯铝的可塑性很髙,可进行各种压力加工,但纯铝强度低,不能做结构材料,人们发现向铝中加入适量的某些合金元素,再经冷加工或热处理制成铝合金,可以大幅度地提
Aluminium is small in density with light quality. Pure aluminium possesses high plasticity thus could be fabricated under pressures, yet is low in intensity, which makes it unable to be served as a structure material. It is discovered that mixture with some alloying elements in appropriate amount following with cold/hot machining to be made into alufer(或：aluminium alloy) may improve its density significantly. Thereon the density extreme of it could be raised to 50 to 60 kilograms per square millimeter, equaling to high-intensity aluminum alloy made from low alloy steel.
With superiorities as light quality, high intensity, good electrical/temperature conductivity, easiness to be fabricated/transformed, innocuity besides environment friendliness, etc, and being abundant in resource, applications of aluminium as well as its alloy cover a large range. Therefore, it is, as for research on aluminium alloy at present, a major topic to study aluminium-copper alloy with high intensity plus good tenacity.
Those alloying elements mostly added are copper(Cu), magnesium(Mg), silicon(Si), manganese(Mn) and zinc(Zn). Among alufers, Al-Cu system alloys have high potential of toughness. Aluminium alloy foundries are made with smelting and casting techniques and, considering gas content at low level, solution strengthening for alloy elements can be achieved while mechanical properties of the alloy could be improved by sufficient solution treatment for the foundries. Then intensity and rigidity of the foundries may be further improved with aging strengthening after solution treatment. This study does get aluminium alloy contained with 5% of copper through smelting Al-50%Cu alloy and pure aluminium, taking as aluminium-copper alloy as subjects and, reach to impact regulations of hot-machining time(或：period) on the texture and properties of the alloy through observation for metallographic phase.
Keywords: aluminum-copper alloy, smelting, solution treatment, aging strengthening
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