An Overview on the Fracture Behavior of Metals Processed by High Pressure Torsion

摘要：

Motivated by the large variety of enhanced properties of ultrafine and nanocrystalline materials such materials are under extensive investigation. Besides focusing on classical material parameters, like strength and ductility, the fracture toughness of these materials is also of great importance, especially when the damage tolerance is required. In this contribution an overview of the fracture behavior of different metals covering ultrafinegrained iron and nickel as well as a nanocrystalline steel processed via high pressure torsion (HPT) will be given. It will be shown that the specimen orientation can have a tremendous influence on the fracture behavior and toughness. Due to this toughness anisotropy an unexpectedly good combination of high strength and high fracture toughness can be achieved very often in these materials.

作者: A.Hohenwarter R.Pippa

作者单位: Erich Schmid Institute of Materials Science,Austrian Academy of Sciences,A-8700 Leoben,Austria

会议类型: 国际会议

会议名称: 5th International Conference on Nanomaterials by Severe Plastic Deformation(第五届剧烈塑性变形纳米材料国际会议)

会议地点: 南京

会议语种:英文

页码: 671-676

在线出版日期: 2011-03-01（万方平台首次上网日期，不代表论文的发表时间）