Transactions of Nonferrous Metals Society of China The Chinese Journal of Nonferrous Metals

您目前所在的位置:首页 - 期刊简介 - 详细页面

中国有色金属学报

ZHONGGUO YOUSEJINSHU XUEBAO

第14卷    第1期    总第58期    2004年1月

[PDF全文下载]    [Flash在线阅读]    

    

文章编号:1004-0609(2004)01-0060-04
喷丸对Ti-10V-2Fe-3Al钛合金拉-拉疲劳性能的影响
高玉魁

(北京航空材料研究院, 北京100095)

摘 要: 研究了高强度钛合金Ti-10V-2Fe-3Al表面喷丸强化所产生的表面形貌、 表面粗糙度、 表面残余应力和表面层残余压应力场变化及喷丸对其拉-拉疲劳性能的影响。 结果表明: 喷丸强化可使Ti-10V-2Fe-3A钛合金的表面粗糙度减小和表面层产生一定深度的残余压应力场, 喷丸强化引起的表面完整性的改善显著提高了疲劳性能。 疲劳试验结果证实了喷丸强化不仅可以显著延长高强度钛合金Ti-10V-2Fe-3Al的拉-拉高周疲劳寿命, 而且可使1×107周次下的疲劳极限提高约30%, 且表面喷丸强化后疲劳裂纹源由多个变为一个。

 

关键词: 钛合金; 疲劳; 喷丸; 残余应力

Influence of shot peening on tension-tension fatigue properties
in Ti-10V-2Fe-3Al titanium alloy
GAO Yu-kui

Institute of Aeronautical Materials, Beijing 100095, China

Abstract: The changes of surface topography, surface roughness, surface residual stress and compressive residual stress field caused by shot peening and their effects on tension-tension fatigue properties in Ti-10V-2Fe-3Al titanium alloy were studied. The results show that the fatigue limit for 1×107 cycles is improved by about 30% with shot peening and confirm that shot peening can improve tension-tension fatigue properties of metals. Moreover, fatigue crack source is single after shot peening. The reason why tension-tension fatigue properties of metals can be modified by shot peening is that the surface integrity such as better surface finish roughness and beneficial compressive residual stress field can be induced by shot peening.

 

Key words: titanium alloy; fatigue; shot peening; residual stress

ISSN 1004-0609
CN 43-1238/TG
CODEN: ZYJXFK

ISSN 1003-6326
CN 43-1239/TG
CODEN: TNMCEW

主管:中国科学技术协会 主办:中国有色金属学会 承办:中南大学
湘ICP备09001153号 版权所有:《中国有色金属学报》编辑部
------------------------------------------------------------------------------------------
地 址:湖南省长沙市岳麓山中南大学内 邮编:410083
电 话:0731-88876765,88877197,88830410   传真:0731-88877197   电子邮箱:f_ysxb@163.com