6Kumar A N, Murray E Stress corrosion cracking of reactor feed pump wear rings [J]. J. Fail. Anal. Prev., 2006, (6): 83.
7Elshawesh F, Abusowa K, Mahfud H, et al. Stress corrosion cracking and galvanic corrosion of internal bolts from a multistage water injection pump [J]. J. Fail. Anal. Prev., 2008, (8): 48.
9King G E. Hydraulic fracturing 101: What every repre-sentative, environmentalist, regulator, reporter, in-vestor, university reseacher, neighbor and engineershould know about estimating frac risk and improvingfrac performance in unconventional gas and oil wells[R] . SPE 152596, 2012.
10Badr E A, Sorem J R, Tipton S M, et al. An analyticalprocedure for estimating residual stresses in blocks con-taining crossbores [J] . International Journal of Pres-sure Vessels and Piping, 2000, 77 (12): 737-749.
