1.1本试验方法建立了一个试验程序，用于确定飞机涡轮发动机清洁和维护材料导致钛合金零件应力腐蚀开裂的倾向。 1.2通过确定与清洁和维护材料接触对预应力钛合金在随后加热至高温时开裂趋势的影响，对具有代表性的钛合金进行评估。 1.3试验条件基于制造商建议的最大工作溶液浓度。 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户有责任在使用前制定适当的安全和健康实践，并确定监管限制的适用性。 有关具体的预防说明，请参阅和。 ====意义和用途====== 由于预应力钛合金零件在与某些化学试剂接触时受热容易开裂，因此有必要确保清洁和维护材料在受控条件下不会引发钛合金的应力腐蚀。对于试样，选择了两种常见的钛合金，一种对应力腐蚀开裂非常敏感（AMS 4916），另一种不太敏感（AMS 4911）。

1.1 This test method establishes a test procedure for determining the propensity of aircraft turbine engine cleaning and maintenance materials for causing stress corrosion cracking of titanium alloy parts. 1.2 The evaluation is conducted on representative titanium alloys by determining the effect of contact with cleaning and maintenance materials on tendency of prestressed titanium alloys to crack when subsequently heated to elevated temperatures. 1.3 Test conditions are based upon manufacturer's maximum recommended operating solution concentration. This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. For specific precautionary statements, see and. ====== Significance And Use ====== Because of the tendency of prestressed titanium alloy parts to crack if heated while in contact with certain chemical reagents, it is necessary to ensure that cleaning and maintenance materials will not initiate stress corrosion of titanium alloys under controlled conditions. For test specimens, two common titanium alloys are selected, one that is very susceptible (AMS 4916) and one that is not very susceptible (AMS 4911) to stress corrosion cracking.