文献类型：期刊文章

作　　者：曹晓卿[1,2] 徐平平[1,2] 樊奇[1,2] 王文先[1,2]

机构地区：[1]太原理工大学材料科学与工程学院,太原030024 [2]太原理工大学先进镁基材料山西省重点实验室,太原030024

出　　处：《Transactions of Nonferrous Metals Society of China》

基　　金：Project(51375328)supported by the National Natural Science Foundation of China;Project(20143009)supported by Graduates Innovation Project of Shanxi Province,China;Project(2015-036)supported by Shanxi Scholarship Council of China

年　　份：2016

卷　　号：26

期　　号：9

起止页码：2426-2432

语　　种：中文

收录情况：0、AJ、CAS、CSA、CSA-PROQEUST、CSCD、CSCD2015_2016、EBSCO、EI(收录号：20164803049786)、IC、INSPEC、JST、SCI-EXPANDED(收录号：WOS:000386345500019)、SCIE、SCOPUS、WOS、ZGKJHX、普通刊

摘　　要：A theoretical prediction on forming limit diagram（FLD） of AZ31 magnesium alloy sheet was developed at warm temperatures based on the M-K theory. Two different yield criteria of von Mises and Hill＇48 were applied in this model. Mechanical properties of AZ31 magnesium alloy used in the prediction were obtained by uniaxial tensile tests and the Fields-Backofen equation was incorporated in the analysis. In addition, experimental FLDs of AZ31 were acquired by conducting rigid die swell test at different temperatures to verify the prediction. It is demonstrated from a comparison between the predicted and the experimental FLDs at 473 K and 523 K that the predicted results are influenced by the type of yield criterion used in the calculation, especially at lower temperatures. Furthermore, a better agreement between the predicted results and experimental data for AZ31 magnesium alloy sheet at warm temperatures was obtained when Hill＇48 yield criterion was applied.

关 键 词：magnesium alloy  forming limit diagram  theoretical prediction  yield criterion  sheet warm forming  

分 类 号：TG146.22[材料类]