JOINING METHOD OF AU AND AU ALLOY BLANK MATERIAL AND TI AND TI ALLOY BLANK MATERIAL

摘要

PURPOSE:To form a joint part having high joint strength in the stage of joining an Au or Au alloy blank material and Ti or Ti alloy blank material by forming preliminarily an impregnated layer contg. oxygen or nitrogen or both to the joint surface of the Ti or Ti alloy blank material. CONSTITUTION:The impregnated layer incorporated with oxygen or nitrogen or both at a ratio by weight % of 0.5-15.5% oxygen and 0.1-7% nitrogen is formed on the joint surface of the Ti or Ti alloy blank material. The joint surfaces of the Ti or Ti alloy blank material and the Au or Au alloy blank material are superposed on each other via the impregnated layer. Both blank materials are subjected to a pressurizing and heating treatment in an inert gaseous or vacuum atm. under the conditions of, for example, about 750 deg.C heating temp., above 0.5kg/mm.2 pressurizing force and about 10min heating time by which both materials are diffusion-joined.