本文選題：高硅鋁合金 + 攪拌摩擦加工��； 參考：《熱加工工藝》2017年20期

【摘要】：研究了攪拌摩擦加工(FSP)技術(shù)對(duì)高硅鋁合金Al Si30的抗拉強(qiáng)度、伸長(zhǎng)率的影響,探討了其斷裂機(jī)理。結(jié)果表明,隨著摩擦攪拌道次的增加,Al Si30的強(qiáng)度和塑性都顯著提高,材料的斷裂模式從脆性斷裂轉(zhuǎn)變?yōu)轫g性斷裂。當(dāng)摩擦攪拌道次較少時(shí),粗大硅相多,且不夠圓整,裂紋首先發(fā)源于粗大硅顆粒內(nèi)部,并引發(fā)基體斷裂,硅相的斷裂面與周?chē)w的斷裂面平齊;當(dāng)摩擦攪拌道次較多時(shí),粗大硅相少,而且圓整,裂紋基本上發(fā)源于粗大硅顆粒/鋁基體界面。
[Abstract]:The effects of friction stir processing (FSP) technology on tensile strength and elongation of Al Si30 alloy with high silicon content were studied. The fracture mechanism was discussed. The results show that the strength and plasticity of Al Si30 increase with the increase of friction stir pass, and the fracture mode changes from brittle fracture to ductile fracture. When the friction stir passage is less, the coarse silicon phase is more and less round, the crack originates in the coarse silicon particle at first, and causes the matrix fracture, the fracture surface of the silicon phase is even with the fracture surface of the surrounding matrix, and when the friction stir passage is more frequently, the fracture surface of the silicon phase is equal to the fracture surface of the surrounding matrix, and when the friction stir passage is more frequently, The coarse silicon phase is few, and the crack is round, the crack basically originates from the coarse silicon particle / aluminum matrix interface.
【作者單位】： 云南機(jī)電職業(yè)技術(shù)學(xué)院;
【分類(lèi)號(hào)】：TG146.21

【相似文獻(xiàn)】

相關(guān)期刊論文 前10條

1 盛桂林;;高硅鋁合金腐蝕評(píng)論[J];輕合金加工技術(shù);1975年04期

2 王湘君;;高硅鋁合金中銻、銅、錳、鎂、鐵的原子吸收分光光度法測(cè)定[J];湖南冶金;1977年04期

3 郝廷t，

本文編號(hào)：1925343