Tensile Strength Properties of Niobium Alloyed Austempered Ductile Iron on different austempering time

摘要：

This study focused on tensile strength properties inclusive of ultimate tensile strength and elongation values of niobium alloyed ductile iron in as cast and austempered conditions. The tensile specimens were machined according to TS 138 EN 10002-1 standard. Austempering heat treatment was conducted by first undergoing austenitizing process at 900ⅹC before rapidly quenched in salt bath furnace and held at 350ⅹC for 1 hour, 2 hours and 3 hours subsequently. The findings indicated that austempering the samples for 1 hour had resulted in improvement of almost twice of the tensile strength in niobium alloyed ductile iron. Improvement of elongations values were also noted after 1 hour austempering times. Increasing the austempering holding times to 2 hour and 3 hours had resulted in decrement in both tensile strength and elongations values.

关键词： Austempered ductile iron niobium Tensile properties

作者: B.Abdullah S.K.Alias A.Jaffar A.A.Rashid M.Haskil A. Ramli

作者单位: Faculty of Mechanical Engineering, Universiti Teknologi MARA, Malaysia Faculty of Sciences & Biotechnology, Universiti Selangor, Malaysia

会议类型: 国际会议

会议名称: 2011 International Conference on Advanced Materials and Engineering Materials(2011先进材料与工程材料国际会议 ICAMEM 2011)

会议地点: 沈阳

会议语种:英文

页码: 1155-1158

在线出版日期: 2011-11-22（万方平台首次上网日期，不代表论文的发表时间）