粉末高温合金盘件超声波底损监控问题探讨

孙志坤，吕日红，于冬

Discussion about problem of ultrasonic bottom echo loss monitoring of powder metallurgy superalloy disc

SUN Zhi-kun，LU. Ri-hong，YU Dong

物理测试 . 2019, (6): 27 -31 . DOI: 10.13228/j.boyuan.issn1001-0777.20190010