Aging strengthening type magnesium alloy and heat treatment process thereof
专利类型：发明专利
语 言：中文
申 请 号：CN201510273813.2
申 请 日：20150526
申 请 人：重庆大学
申请人地址：400044 重庆市沙坪坝区沙正街174号
公 开 日：20170118
公 开 号：CN104831137B
代 理 人：张先芸
代理机构：重庆博凯知识产权代理有限公司 50212
摘 要：Abstract：The invention provides an aging strengthening type magnesium alloy and a heat treatment process thereof. The alloy comprises, by weight, 6.8-8.0% of zinc, 0.8-1.5% of copper and 0.8-1.5% of manganese, with the balance being magnesium and inevitable impurities. According to the heat treatment process, an alloy ingot is subjected to two-stage homogenization treatment under the condition of (330-360) DEG C * (4-8)h+(400-420) DEG C * (16-20)h and is subjected to thermal forming at the temperature of 360-400 DEG C, a finished product is subjected to solution treatment at the temperature of 400-430 DEG C for 2-4 hours, and two-stage aging is performed under the condition of (80-100) DEG C * (3-5)h+(175-190) DEG C * (15-18)h after water cooling, so that an aging strengthening effect much better than that of a commercial high-strength ZK60 alloy can be achieved, and alloy strength can be improved obviously. The alloy does not contain heavy metal and is low in cost; the limitation that aging strengthening of conventional commercial magnesium alloys is achieved through MgZn2 phases is broken through; through proper heat treatment process, precipitated phases in the alloy can be precipitated in a small dispersed mode and the ageing strengthening potential of the alloy can be developed to the greatest extent.
主 权 项：一种时效强化型镁合金，其特征在于，所述镁合金由镁、锌、铜、锰组成，其重量百分组成为锌6.8%~8.0%、铜0.8~1.5%、锰0.8%~1.5%，其余为镁和不可避免的杂质。
关 键 词：
法律状态：公开
IPC专利分类号：C22F1/06; C22C23/04; C22C1/03