中国物理B ›› 2010, Vol. 19 ›› Issue (11): 117503-117503.doi: 10.1088/1674-1056/19/11/117503

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇    下一篇

Effects of pre-deformation on the martensitic transformation and magnetocaloric property in Ni–Mn–Co–Sn ribbons

马胜灿, 轩海成, 张成亮, 王辽宇, 曹庆琪, 王敦辉, 都有为   

  1. National Laboratory of Solid State Microstructures and Key Laboratory of Nanomaterials for Jiang Su Province, Nanjing University, Nanjing 210093, China
  • 收稿日期:2010-04-09 修回日期:2010-05-06 出版日期:2010-11-15 发布日期:2010-11-15
  • 基金资助:
    Project supported by the National Basic Research Program of China (Grant No. 2005CB623605), the National Natural Science Foundation of China (Grant Nos. 50701022 and 50831006) and the Program for New Century Excellent Talents of China (Grant No. NCET-08-0278).

Effects of pre-deformation on the martensitic transformation and magnetocaloric property in Ni–Mn–Co–Sn ribbons

Ma Sheng-Can(马胜灿), Xuan Hai-Cheng(轩海成), Zhang Cheng-Liang(张成亮), Wang Liao-Yu(王辽宇), Cao Qing-Qi(曹庆琪), Wang Dun-Hui(王敦辉), and Du You-Wei(都有为)   

  1. National Laboratory of Solid State Microstructures and Key Laboratory of Nanomaterials for Jiang Su Province, Nanjing University, Nanjing 210093, China
  • Received:2010-04-09 Revised:2010-05-06 Online:2010-11-15 Published:2010-11-15
  • Supported by:
    Project supported by the National Basic Research Program of China (Grant No. 2005CB623605), the National Natural Science Foundation of China (Grant Nos. 50701022 and 50831006) and the Program for New Century Excellent Talents of China (Grant No. NCET-08-0278).

摘要: This paper investigates the martensitic transformation and magnetocaloric effect in pre-deformed Ni-Mn-Co-Sn ribbons. The experimental results show that the reverse martensitic transformation temperature TM increases with the increasing pre-pressure, suggesting that pre-deformation is another effective way to adjust TM in ferromagnetic shape memory alloys. Large magnetic entropy changes and refrigerant capacities are obtained in these ribbons as well. It also discusses the origin of the enhanced martensitic transformation temperature and magnetocaloric property in pre-deformed Ni-Mn-Co-Sn ribbons.

Abstract: This paper investigates the martensitic transformation and magnetocaloric effect in pre-deformed Ni–Mn–Co–Sn ribbons. The experimental results show that the reverse martensitic transformation temperature TM increases with the increasing pre-pressure, suggesting that pre-deformation is another effective way to adjust TM in ferromagnetic shape memory alloys. Large magnetic entropy changes and refrigerant capacities are obtained in these ribbons as well. It also discusses the origin of the enhanced martensitic transformation temperature and magnetocaloric property in pre-deformed Ni–Mn–Co–Sn ribbons.

Key words: pre-deformation, martensitic transformation, magnetocaloric property

中图分类号:  (Deformation and plasticity)

  • 62.20.F-
75.30.Sg (Magnetocaloric effect, magnetic cooling) 81.40.Lm (Deformation, plasticity, and creep)