[求助]:关于飞机钛合金构件损伤修理

不了解 冒个泡泡

<p>刚注册的ID就来问这个问题？如果是要写论文，去图书馆找别偷懒。如果是当网特，还是省点心吧。</p>

呵呵！[em41]

<p>呵呵&nbsp; 来了个菜鸟网特</p>

像大梁之类的东西鲜有坏了还能修的，要么换要么干脆就报废了，而且通常后者居多。<br/><br/>涡轮上的东西恐怕没有能修理一说，这就好比活塞发动机的气缸裂了焊上再用一样荒唐。<br/>

<div class="quote"><b>以下是引用<i>QBQ战鹰</i>在2006-4-7 22:15:00的发言：</b><br/>像大梁之类的东西鲜有坏了还能修的，要么换要么干脆就报废了，而且通常后者居多。<br/><br/>涡轮上的东西恐怕没有能修理一说，这就好比活塞发动机的气缸裂了焊上再用一样荒唐。<br/></div><p>赞一个~~！！</p>[em07]

<div class="quote"><b>以下是引用<i>QBQ战鹰</i>在2006-4-7 22:15:00的发言：</b><br/>像大梁之类的东西鲜有坏了还能修的，要么换要么干脆就报废了，而且通常后者居多。<br/><br/>涡轮上的东西恐怕没有能修理一说，这就好比活塞发动机的气缸裂了焊上再用一样荒唐。<br/></div><p><span style="FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体;"><span style="mso-spacerun: yes;">&nbsp;</span></span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">钛合金是当代飞机和发射极的主要结构材料之一，美国在</span><span lang="EN-US" style="FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体;">80</span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">年代以后设计的各种先进军用战斗机和轰炸机中，钛的饿用量已在</span><span lang="EN-US" style="FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体;">20%</span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">以上。如第三代</span><span lang="EN-US" style="FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体;">F-15</span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">战斗机的钛合金用量占</span><span lang="EN-US" style="FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体;">27%</span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">，而第四代</span><span lang="EN-US" style="FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体;">F-22H</span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">战斗机的钛合金用量占</span><span lang="EN-US" style="FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体;">41%。SU-27上用钛也很大，就都是用换？！不修？！荒谬！你家钱多啊！</span></p><p><span lang="EN-US" style="FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体;"><span lang="EN-US" style="FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体;">建议你们去看看：《Welding Repair of Aero-engine Impellers》&nbsp;<span style="mso-spacerun: yes;">&nbsp;&nbsp;——</span></span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">尔东；1993年第3期《航空工艺技术》的“发动机叶片与部件修复工程中的焊接修复——关桥。</span></span></p><span lang="EN-US" style="FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体;"><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;"><p style="LINE-HEIGHT: 16pt;"><span style="FONT-SIZE: 9pt;">[B]电子束物理气相沉积技术[/B]是表面工程技术中新兴的镀膜技术，主要用于航空发动机零件的各种防护涂层、新型材料制备、[U]叶片修复[/U]和获得大厚度结构涂层等领域。<span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;"><strong>激光熔敷技术</strong></span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">诞生以来</span><span lang="EN-US" style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体;">,</span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">作为一种修复技术已得到许多重要应用。如英国</span><span lang="EN-US" style="FONT-SIZE: 9pt; FONT-FAMILY: Arial; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体;">P.R</span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">航空发动机公司将它用于涡轮发动机叶片的修复。</span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">激光</span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">修复</span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">层与基体是冶金结合，层内组织均匀细致，消除了气孔、裂纹、夹渣等缺陷，修复材料要与基材基本性能一致，要与基材有互熔性，实现冶金结合。修复层中不能有裂纹、气孔，且层内组织均匀，与基材结合界面强度不低于基材强度。对损伤比较严重的部位，必须进行多层熔敷。每层厚度</span><span lang="EN-US" style="FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体;">0.54mm</span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">，计</span><span lang="EN-US" style="FONT-SIZE: 9pt; FONT-FAMILY: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体;">30</span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">层。每层间的组织与每层内组织比较，稍有些粗大，但总体来看，还是均匀的。多层激光系统熔敷可以获得大面积的组织和性能均匀的</span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">修复</span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">层。</span><span lang="EN-US"><p></p></span></span></p></span></span>

SU27身上没多少钛，这个大家都清楚，钢用的多呀！

科内舍夫在上，侧卫没打算飞到M3.3的计划呀。

<p>就算是米格-25都是用不锈钢的</p><p>貌似毛子的Ti都用去造大鱼了</p>

如果在航空发动机中尽可能使用钛合金取代镍基高温合金制造航空发动机的压气机盘、叶片和机匣等零部件，可以大大减轻发动机的重量和提高其推重比。当工作温度超过６００℃，氧化将对钛合金的性能产生明显的破坏作用，正在研究的表面防护措施主要有扩散涂层、气相沉积涂层、搪瓷涂层<br/>、离子注入及离子束辅助沉积法抗氧化表面改性。不过这几种方法各有其优点，也各有其缺陷。

F14对钛的需求比较高

<p>　　中国新自主研制的第三代涡扇发动机用钛量就达到了２５％！</p>

<p>自己去查核心期刊</p><p>或者搜索国外相对数据库</p><p></p><p>在坛里问这个不合适。</p>