(中南工業(yè)大學(xué)材料科學(xué)與工程系， 長沙 410083)
摘 要: 采用取向分布函數(shù)(ODF)研究了純鋁板材單軸拉伸過程中的織構(gòu)演變規(guī)律。 結(jié)果表明， 單軸拉伸過程中存在著明顯的織構(gòu)變化。 相對(duì)于拉伸坐標(biāo)系而言， 穩(wěn)定性較好的織構(gòu)組分主要有{110}〈111〉， {112}〈111〉和{100}〈001〉， 穩(wěn)定性較差的織構(gòu)組分主要有{110}〈110〉和{112}〈110〉。 拉伸過程中晶粒的〈111〉和〈001〉方向分別為穩(wěn)定和較穩(wěn)定的拉伸方向， 〈110〉方向?yàn)椴环€(wěn)定的拉伸方向。
關(guān)鍵字: 織構(gòu) 單軸拉伸 鋁板 取向分布函數(shù)(ODF)
TENSION OF ALUMINUM SHEET
（Department of Materials Science and Engineering,Central South University of Technology, Changsha 410083, P. R. China
）
Abstract:Texture changes of aluminum sheet after different uniaxial tensile deformations were investigated with the aid of the experimentally determined orientation distribution functions. The results demonstrate that there are obvious texture changes during uniaxial tensile testing. Referring to the tensile coordinate system, texture components {110}〈111〉, {112}〈111〉 and {100}〈001〉 are stable, {110}〈001〉 is metastable and {110}〈110〉 and {112}〈110〉 are unstable. From the viewpoint of stability relative to the tensile direction, 〈111〉 and 〈001〉 directions of crystals are stable and metastable respectively, while 〈110〉 direction is unstable during uniaxial tension.
Key words: texture uniaxial tension aluminum sheet orientation distribution function (ODF)
