Modelling the plastic deformation of iron

• Tác giả: Zhiming Chen
• Ngôn ngữ: eng
• ISBN-13: 978-3866449688
• Thông tin xuất bản: KIT Scientific Publishing 2013
• Mô tả vật lý: 1 electronic resource (XII, 146 p. p.)
• Bộ sưu tập: Tài liệu truy cập mở
• ID: 204178

Tóm tắt

 The 1/2<
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  screw dislocations in bcc iron are studied by atomistic simulations. An analytical yield criterion captures correctly the non-Schmid plastic behavior. A model Peierls potential develops a link between the atomistic modeling at 0 K and the thermally activated dislocation motion. All predicted features agree well with experimental observations. This work establishes a consistent bottom-up model that provides an insight into the microscopic origins of the plastic behavior of bcc iron.