Tensile Deformation of Si Single Crystals with Easy Glide Orientation
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- Suzuki Tubasa
- Department of Materials Science and Engineering, Kyushu University
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- Tanaka Masaki
- Department of Materials, Kyushu University Centre for Elements Strategy Initiative for Structural Materials, Kyoto University
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- Morikawa Tatsuya
- Department of Materials, Kyushu University
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- Fujise Jun
- Advanced Evaluation and Technology Development Department, SUMCO Corporation
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- Ono Toshiaki
- Advanced Evaluation and Technology Development Department, SUMCO Corporation
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説明
<p>Silicon single crystals were deformed in tensile tests along the [134] direction between 1173 K and 1373 K. The yield point phenomenon was observed in the specimens deformed below 1273 K, while a continuous yield was observed in the specimens deformed above 1323 K. The values of work-hardening rate in stage II were the same as those reported in other single crystals. Orientation maps of the specimen obtained by using electron backscattered electron diffraction method indicated that stage II starts before the Schmid factor of the secondary slip system became larger than that of the primary slip system. Because of the constraint due to the gripping of the test piece, kink bands are formed during stage I before the onset of stage II, and then the stress state becomes non-uniaxial. This suggests that the formation of kink bands triggers the activation of the secondary, i.e., conjugate slip system to increase the resolved shear stress on the conjugate slip systems.</p>
収録刊行物
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- MATERIALS TRANSACTIONS
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MATERIALS TRANSACTIONS 62 (7), 975-981, 2021-07-01
公益社団法人 日本金属学会
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詳細情報 詳細情報について
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- CRID
- 1390288480070532352
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- NII論文ID
- 130008056660
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- NII書誌ID
- AA1151294X
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- ISSN
- 13475320
- 13459678
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- NDL書誌ID
- 031532541
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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