Creation and Development Technology Project of Shenzhen,China(2021Szvup050);Shanghai Sailing Program(23YF1417400);2020 Renewal Program of Jilin University(419080520464)。
采用Zn-6Sn-5Bi钎料对镀Cu/Ni的烧结Nd Fe B永磁体和DP1180钢进行钎焊连接,对比分析了2种镀层条件下钎焊接头的微观组织和力学性能。结果表明,对于镀Cu的烧结Nd Fe B永磁体和DP1180钢的钎焊接头,Cu在钎料中扩散并与Zn、Fe反应生成脆性...
National Science and Technology Key Support Projects of China(2012BAE02B01);Major Science and Technology Special Projects of Jiangxi Province(2010AZX00200);Science and Technology Plan Projects of Jiangxi Province(20121BBE50001);Science and Technology Plan Projects of Department of Education of Jiangxi Province(KJ201109132281)
通过酸洗、浸泡法和电化学腐蚀测试分析了烧结Nd Fe B永磁体在不同浓度的H2SO4溶液、HCl溶液和HNO3溶液中的腐蚀行为。结果表明,烧结Nd Fe B磁体在HNO3溶液中的腐蚀机制为均匀腐蚀,而在H2SO4溶液和HCl溶液中的腐蚀机制为选择性的晶间腐...