对铸态20%SiCw/6A02Al复合材料进行了表面喷丸处理,测量了表层基体残余应力的分布情况,建立了复合材料表层基体屈服强度的X射线试验方法,探讨了其表层喷丸强化效应.结果表明:经喷丸处理后复合材料表层基体呈现出较大残余压应力状态,X射线衍射峰半高宽度即显微组织强化效应明显增大,导致复合材料表层基体屈服强度提高.
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