长大使涂层内Ni(Cr)相细化;在650℃下进行12或24 h热处理后,涂层结合强度增至 46.5 MPa;热处理温度为800℃时,BaF2发生严重氧化,致使涂层内组织疏松,局部形成大面积孔洞,涂层结合强度显著降低.
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