The phase structure and microstructure of materials were study by XRD, IR and SEM.
采用XRD、IR及SEM等方法研究材料的相组成与显微结构。
The phase structure and microstructure of as-cast and quenched alloys were analyzed and observed by XRD and SEM.
用XRD和SEM分析了铸态及快淬态合金的相结构，并观察了合金的微观组织形貌。
The phase structure and microstructure morphologies of the as-cast and quenched alloys were analysed and observed by XRD and SEM.
用XRD和SEM分析了铸态及快淬态合金的相结构及微观组织形貌。
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