STP870

    Comparison of Depth-Dependent Microstructures of Ion-Irradiated Type 316 Stainless Steels

    Published: Jan 1985


      Format Pages Price  
    PDF (336K) 14 $25   ADD TO CART
    Complete Source PDF (10M) 14 $165   ADD TO CART


    Abstract

    The microstructural response of P7, a high-swelling, “pure” Type 316 stainless steel and the Magnetic Fusion Engineering (MFE) heat of Type 316 stainless steel were investigated after 14-Me V nickel-ion irradiation. Specimens of the P7 alloy were irradiated to fluences of 3.3 × 1016 14-Me V nickel ions/cm2. Irradiation temperatures ranged from 500°C to 650°C (0.45 to 0.6 Tm). In addition, a sample of Type 316 stainless steel was irradiated at 650°C (0.6 Tm) to a fluence of 3.3 × 1016 14-Me V nickel ions/cm2. The irradiated specimens were examined in cross section by electron microscopy. the 500°C irradiation of the P7 alloy produced a depth-dependent void distribution influenced by the excess interstitial effect of the bombarding ions. The 650°C irradiations of the P7 alloy produced a bimodal void distribution at the damage peak. The 650°C irradiation of Type 316 stainless steel produced needle-like precipitation in the entire damage region.

    Keywords:

    ion-irradiation, Type 316 stainless steels, oxygen effects, void formation, transmission electron microscopy cross section, bi-modal void distribution, radiation-induced precipitation, radiation


    Author Information:

    Sindelar, RL
    Research assistant/graduate student, professor, and professor, University of Wisconsin, Madison, WI

    Dodd, RA
    Research assistant/graduate student, professor, and professor, University of Wisconsin, Madison, WI

    Kulcinski, GL
    Research assistant/graduate student, professor, and professor, University of Wisconsin, Madison, WI


    Paper ID: STP37371S

    Committee/Subcommittee: E10.07

    DOI: 10.1520/STP37371S


    CrossRef ASTM International is a member of CrossRef.