TC11鈦合金轉子葉片斷裂分析
發布人：上海艾荔艾合金股份有限公司www.shailiai.cn
更新時間：2016-01-14
某型發動機在使用過程中一片鈦合金轉子葉片在葉根部發生斷裂故障。針對該故障葉片，開展了外觀形貌觀察、斷口宏微觀觀察、金相組織檢查、化學成分及硬度檢測等研究工作，結合發動機工作特點，確定了葉片斷裂性質和原因。
TC11鈦合金轉子葉片斷裂分析Fracture analysis of rotor blade of titanium alloy TC11某型發動機在使用過程中一片鈦合金轉子葉片在葉根部發生斷裂故障。針對該故障葉片，開展了外觀形貌觀察、斷口宏微觀觀察、金相組織檢查、化學成分及硬度檢測等研究工作，結合發動機工作特點，確定了葉片斷裂性質和原因。結果表明：壓氣機轉子葉片斷裂性質為高周疲勞斷裂，疲勞裂紋的形成與葉片局部應力狀態有關，而微動磨損促進了疲勞裂紋的萌生。
A rotor blade of titanium alloy TC11 in an aero-engine fractured at the root segment during service. Appearance observation, fracture surface observation, metallurgical structure examination, chemical composition analysis and hardness testing were carried out to find out the failure mode and cause of the fractured blade. The results show that the fracture mode of the rotor blade is high-cycle fatigue fracture. The initiation of the fatigue crack is related to local stress state of the blade, and inching wear promotes the initiation of fatigue crack.
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AILIAI has been a reliable partner and supplier of sophisticated and high-quality semi-finished products maed of alloys. In dialogue with our customers, we optimise our products to meet the specific application requirements. AILIAI develops the best alloy material solutions for current and future challenges.
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For more information on the alloys and services that we supply,?call us?at 086-021-67660801 or email us at kefu@ailiaigroup.com. You can also get in touch on social media, we are constantly active on?Weibo,?Weixin,?LinkedIn?and?Twitter.