Influence of Microdamage Metal of Energy Long Working Objects on Acoustic and Magnetic Characteristics

[摘要] The samples of damaged metal steam pipes are studied by acoustic and magnetic methods in the paper. In particular, there are studied sample without damage, samples with creep cracks and samples of with microdamage. All samples were made of 12H1MF steel and have different operating time. A graph of acoustic and magnetic characteristics of the operating time and score of microdamage are constructed. A values of acoustic and magnetic characteristics, corresponding to the maximum, defective score of micro steam pipes of metal specimens made of steel 12H1MF are established.

[发布机构] T.F. Gorbachev Kuzbass State Technical University, 28 str. Vesennyaya, Kemerovo; 650000, Russia^1

[效力级别] 机械制造

[关键词] Magnetic characteristic;Magnetic methods;Metal specimen;Micro-damage;Operating time;Steam pipe