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前言即使今天当提到“奥氏体材料”时．对有实践经验的超声波检验者也望而却步．面对高衰减伴随着异乎寻常的散射而常常使之放弃了许多用超声波法检验这件材料的无益努力。在很少提到的奥氏体焊缝的超高检验中，一些检验人员倾向于转而造现另一种无损检验方法：由于奥氏体焊缝?
Foreword Even today when referring to “austenitic material”. Experienced sonographers are also discouraged. Faced with the high attenuation accompanied by exotic scattering often give up many of the unprofessional efforts to test this material by ultrasound. In the rarely-mentioned austenitic weld ultra-high test, some inspectors tend to turn to another non-destructive test method: As the austenitic weld?