快速冷却的合金由于表面组织致密和缺陷少，耐蚀性较高。
The corrosion resistance of rapid-cooling alloys is high for their compact structure and little defects.
高速离心铸造，组织致密，无砂眼、夹渣，表面光滑、壁厚均匀。
Centrifugal casting, compact structure, free from pinhole porosity and slag, smooth surface and even wall thickness.
高速电弧喷涂镍铝涂层结合强度高，涂层组织致密，是优良的打底涂层。
It was proved that high velocity arc spraying Ni-Al coating is one of best intermediate coatings with high adhesive strength and fine structure.
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