CAJ | 학술논문

介绍了用X射线衍射法与剥层法对小口径钛合金（Ti6Al4V）管开展的残余应力测试研究,用冷径向精锻制备的钛合金管锻件内径为φ20mm,外径为φ40mm,将外径机加至φ25,φ24,φ23mm,分别测试φ40,φ25,φ24,φ23mm外表面的轴向、周向残余应力,结果表明：φ40mm外表面的残余应力主要是拉应力,其他直径外表面的残余应力为压应力,研究对该类产品的工艺与产品设计具有重要参考价值。
개소료용X사선연사법여박층법대소구경태합금（Ti6Al4V）관개전적잔여응력측시연구,용랭경향정단제비적태합금관단건내경위φ20mm,외경위φ40mm,장외경궤가지φ25,φ24,φ23mm,분별측시φ40,φ25,φ24,φ23mm외표면적축향、주향잔여응력,결과표명：φ40mm외표면적잔여응력주요시랍응력,기타직경외표면적잔여응력위압응력,연구대해류산품적공예여산품설계구유중요삼고개치。
Titanium alloy has large resistance to cold plastic deformation. Residual stress will emerge after cold deformtion. The paper introduces the investigation of measurement of residual stress for titanium alloy（Ti6A14V） tube with small caliber by X-ray diffraction and layer removal technique. The titanium alloy tube made by cold radial forging with inner diameter 4,20 mm and external diameter 4,40 mm was machined to 4,25,4,24,4,23 mm for external diameter. The axial and circumferen cial residual stresses on the external surface were measured to 4,40,4,25,4,24,4,23mm for external diameter separately. The resuits show that the residual stresses on the 4,40 mm are mainly tensile stresses, the residual stresses on the other diameters are compressive stresses. The results provide a valuable insight into the process and provide a useful tool for better design of this kind of process and product.