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前言 1.钛合金涡轮盘超塑性等温锻造对防氧化保护—润滑剂(以下简称保护—润滑剂)的要求钛合金具有轻质、高强度、耐腐蚀、高温强度好等优良性能。这些性能使钛合金在国防工业,原子能工业,宇航工业中得到了广泛的应用。但钛合金又是一种活性金属,加热时,与大气中的氧、氢、氮作用,形成氧化—渗气层,导致毛坯锻造性能变坏,使一些复杂零件不能成形。另一方面,氧化—渗气层的产生、将加大锻件的加工余量。这不但浪费了宝贵的钛合金材料,也浪费了工时。在等温锻造中,要达到少无氧化加热
Preface 1. Titanium alloy turbine disc superplastic isothermal forging protection against oxidation - lubricant (hereinafter referred to as protection - lubricants) requirements Titanium alloy with light, high strength, corrosion resistance, high temperature strength and good performance. These properties make titanium alloy in the defense industry, nuclear industry, aerospace industry has been widely used. However, titanium is an active metal. When heated, it interacts with the oxygen, hydrogen and nitrogen in the atmosphere to form an oxidation-gas permeable layer, which deteriorates the forging performance of the blank and makes it impossible for some complex parts to be formed. On the other hand, the oxidation - the formation of air seepage will increase forging allowance. This is not only a waste of valuable titanium alloy material, but also a waste of working hours. In isothermal forging, to achieve less non-oxidized heating