作 者: ; ; ; (陈慧); (刘志铭); (李慎兰);
机构地区: 中南大学材料科学与工程学院
出 处: 《轻合金加工技术》 2012年第2期38-41,共4页
摘 要: 对7003铝合金挤压型材样品在试验室进行了固溶热处理工艺试验研究,在淬火后经双级时效处理,其抗拉强度、屈服强度和伸长率分别可达405 N/mm2、351 N/mm2和13%。在此基础上,在挤压生产线上进一步试验,研究了型材在线淬火工艺、停放时间及时效热处理等工艺参数对其力学性能的影响。经在线淬火,停放15 d及单、双级时效后,型材的抗拉强度、屈服强度和伸长率分别可达到407 N/mm2、353 N/mm2和15.5%及390 N/mm2、353 N/mm2和15.8%。 At laboratory condition the solution process technology of 7003 alloy has been researched, then quenched and two-step aged; the tensile strength, yield strength and elongation of 7003 alloy with T6 temper can get to 405 N/mm2 ,351 N/mm2 and 13% respectively. Based on this researching, the influence of on line quenching technology, holding time in air and aging process on mechanical properties has been investigated. The tensile strength, yield strength and elongation of 7003-T6 can get to 407 MPa,353 MPa,15.5% ,while after on line quenching it being hold in air for 15 days and two-step aged, but the mechanical properties will be 390 N/mm2 ,353 N/mm2, 15.8% respectively if it being single step aged.