铸造2001，Vol.50Issue(5)：270-273，274,5.
水附着状态下奥贝球铁的拉伸性能及断裂机制
The Tensile Properties of Austempered Ductile Iron in Condition of Contact with Water and its Fracture Mechanism
蔡启舟 1魏伯康 1林汉同 1田中雄一2
作者信息
- 1. 华中科技大学材料科学与工程学院,
- 2. 日本室兰工业大学,
- 折叠
摘要
Abstract
The tensile properties of austempered ductile iron (ADI) were tested in condition of contact with water and its fracture mechanism was investigated in this paper. Both tensile strength and elongation of the iron were decreased drastically, it exhibited remarkable water-embrittlement in condition of contact with water. Especially, ADI austempered specimens of the iron in process window showed more remarkable embrittlement than others. White spot region regarded as fracture initiation point was observed on fracture surface tested in contact with water. From this result, it was suggested that embrittlement behavior of ADI resulted from a local embrittlement near the surface of specimen during plastic deformation and it led to a rapid fracture of the entire specimen.关键词
奥贝球铁/水附着/拉伸性能/断裂机制分类
矿业与冶金引用本文复制引用
蔡启舟,魏伯康,林汉同,田中雄一..水附着状态下奥贝球铁的拉伸性能及断裂机制[J].铸造,2001,50(5):270-273，274,5.
