n.肉眼圖
The failure of a gear shaft was analyzed by SEM analysis, macrograph, metallographical examination, mechanical test, chemical analysis and etc. 摘要采用掃描電鏡、低倍檢驗(yàn)、金相檢驗(yàn)、力學(xué)試驗(yàn)和化學(xué)分析等方法,分析了人字齒輪軸發(fā)生劈裂的原因。
From the macrograph of the W-coating after heat treatment can see abscission of W-coating ,and which deposited 5 hours is very serious. 涂層的表面有延伸的微裂紋,鎢涂層的宏觀照片顯示沉積了鎢涂層5個(gè)小時(shí)的試樣熱處理后有嚴(yán)重的脫落現(xiàn)象。
The macrograph, micrograph and fracture surface of a failiure conduit of the primary reformer were analyzed with optical microscope and SEM. 用光學(xué)顯微鏡、掃描電鏡對(duì)一段爐下集氣管鼓脹破裂的導(dǎo)淋管的宏觀、微觀組織,斷口形貌進(jìn)行了分析。
In addition,The general macrograph characters of spalling of bonding layer and shallow working lining,and their causes were described. 總結(jié)了軋輥磨損預(yù)報(bào)模型的研究現(xiàn)狀,并詳細(xì)介紹了典型的磨損預(yù)報(bào)模型,最后展望了冷軋輥研究工作的方向。
Abstract The failure of a gear shaft was analyzed by SEM analysis, macrograph, metallographical examination, mechanical test, chemical analysis and etc. 摘要 采用掃描電鏡、低倍檢驗(yàn)、金相檢驗(yàn)、力學(xué)試驗(yàn)和化學(xué)分析等方法,分析了人字齒輪軸發(fā)生劈裂的原因。