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| ELECTRIC FIELD MODIFICATION DURING SUPERPLASTIC DEFORMATION OF LY12CZ DURALUMIN |
| LI Miaoquan; WU Shidun(Northwestern Polytechnical University; Xi'an 710072) |
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Cite this article:
LI Miaoquan; WU Shidun(Northwestern Polytechnical University; Xi'an 710072). ELECTRIC FIELD MODIFICATION DURING SUPERPLASTIC DEFORMATION OF LY12CZ DURALUMIN. Acta Metall Sin, 1995, 31(6): 272-276.
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Abstract Quantitative examination was made of the influence of external intensive electric field on grain size and aspect ratio of grains during superplastic tension and free bulging of duralumin LY12CZ without any pretreatment by the Heyn's method. During tension subjected to electric field, more homogeneously distributed particulares of secondary phase,Al_2CuMg, may precipitate out to stabilize the microstructure and not only the coarsening of grains may be restrained in the primary stage but also the shape of grains may tend towards equiaxial state. Moreover, it is believed that the electric field improves firmly the superplasticity of LY12CZ duralumin alloy.
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Received: 18 June 1995
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| 1CaoWD,LuXP,SprecherAF,ConradH．MaterSciEng,1990;A129:157—1662LiMiaoquan,LiuYuli,WuShichun,WuXiaowei．JMaterProcTechnol,1994;40(3):3853李淼泉,吴诗惇．航空学报,1995;16(1):待出版4BaudeletB,SueryM．JMateriSci,1972;7:512—5205PoirierJP,关德林译．晶体的高温塑性变形,大连:大连理工大学出版社,1989:205-2086陈浦泉．组织超塑性．哈尔滨:哈尔滨工业大学出版社,1988:137-151 |
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