MECHANICAL PROPERTIES OF SQUEEZE INFILTRATED AS52 MAGNESIUM MATRIX COMPOSITES

摘要：

Aluminum borate whisker (9(Al2O3)·2(B2O3) reinforced AS52(with and without strontium modification) metal matrix composites (MMC) were fabricated by the squeeze infiltration method. Creep rupture test was carried out at 150℃ and 100 MPa condition. Results showed that Alborex reinforcement and modified polygonal shape Mg2Si phase contributed to the enhancement of mechanical properties and creep resistance. Creep rupture time was increased 11％ and minimum creep rate was decreased 17％ in the composite. At the Alborex/matrix interface, uniform thin layer of MgO was formed. The initiation of micro-voids at the reinforcement/matrix or Mg2Si/matrix interface was followed by their growth and coalescence to macro-cracks.

关键词： AS52 Mg alloys Alborez reinforcement Mg matriz composite Mg2Si shape modification creep resistance crack initiation

作者: YONG-HA PARK YONG-HO PARK IK-MIN PARK KYUNG-MOX CHO JEONG-JUNG OAK HISAMICHI KIMURA

作者单位: School of Materials Science & Engineering, Pusan National University, 30 Jangjeon-dong, Geumjeong-gu Institute of Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Senaai, 980-8577, Japan

会议类型: 国际会议

会议名称: 第五届先进材料与加工国际会议(Fifth International Conference on Advanced Materials and Processing ICAMP-5)

会议地点: 哈尔滨

会议语种:英文

页码: 1510-1515

在线出版日期: 2008-09-03（万方平台首次上网日期，不代表论文的发表时间）