[1]晁耀杰*,刘吉飞,巨 敏,等. 化学镀镍次数对TC2钛合金疲劳性能影响 [J].电镀与精饰,2022,(7):19-23.[doi:10.3969/j.issn.1001-3849.2022.07.004]
 CHAO Yaojie*,LIU Jifei,JU Min,et al.Influence of Electroless Nickel Plating Times on the Fatigue Properties of TC2 Titanium Alloy[J].Plating & Finishing,2022,(7):19-23.[doi:10.3969/j.issn.1001-3849.2022.07.004]
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化学镀镍次数对TC2钛合金疲劳性能影响
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《电镀与精饰》[ISSN:1001-3849/CN:12-1096/TG]

卷:
期数:
2022年7
页码:
19-23
栏目:
出版日期:
2022-07-15

文章信息/Info

Title:
Influence of Electroless Nickel Plating Times on the Fatigue Properties of TC2 Titanium Alloy
作者:
(大连长丰实业总公司,辽宁 大连 116038)
Author(s):
(Dalian Changfeng Industrial Corporation, Dalian 116038, China)
关键词:
化学镀镍次数 TC2 钛合金疲劳性能影响
Keywords:
electroless nickel plating times TC2 Titanium alloy fatigue properties influence
分类号:
TG174.4
DOI:
10.3969/j.issn.1001-3849.2022.07.004
文献标志码:
A
摘要:
为研究化学镀镍次数对钛合金疲劳性能的影响,选取 TC2 钛合金作为代表材料,采用疲劳试验机和扫描电子显微镜对其空白试样与 3 次和 5 次化学镀镍返修试样的疲劳寿命和疲劳断口形貌进行了测试分析。旋转弯曲疲劳试验结果表明:化学镀镍返修次数越多, TC2 试样在高载荷条件下的疲劳寿命越低;疲劳载荷越低,化学镀镍返修次数对 TC2 的疲劳寿命影响越小;当疲劳载荷接近疲劳极限时, 5 次以内的化学镀镍次数对疲劳极限数值无影响。疲劳断口观察结果表明:随着镀镍次数的增多,疲劳断口的疲劳源数量增多,疲劳扩展区和瞬断区形貌无差别。
Abstract:
: In order to study the influence of the number of electroless nickel plating on the fatigue properties of titanium alloys , TC2 titanium alloy was selected as the representative material. The fatigue properties of the blank specimens , three and five electroless nickel plating rework specimens were tested with a fatigue testing machine. The fatigue fracture morphology was tested and analyzed by a scanning electron microscope. The results of the rotating bending fatigue test show that the more the number of electroless nickel plating rework , the lower the fatigue life of the TC2 specimen under high load conditions. The lower the fatigue load , the less the number of electroless nickel plating rework will affect the fatigue life of TC2.When the load is close to the fatigue limit , the number of electroless nickel plating has little effect on the fatigue life value. Fatigue fracture observation results show that the number of fatigue sources of fatigue fracture increases , with the increase of nickel plating times. There is no difference in the morphology of fatigue expansion zone and instantaneous fracture zone.

参考文献/References:



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备注/Memo

备注/Memo:
收稿日期: 2021-10-06 修回日期: 2022-03-11 作者简介: 晁耀杰( 1988 — ),男,硕士,工程师,主要从事航空装备修理相关的技术及研究工作。 Email : chaoyaojie@163.com 基金项目: 大连市高层次人才创新支持计划项目( 2020RQ094 ),大连市揭榜挂帅科技攻关项目( 2021JB12GX007 ) .
更新日期/Last Update: 2022-07-09