研究了低碳钢、普通市售x65钢和高洁净度X65钢三种超细晶粒钢焊接haz的晶粒长大倾向。
In this paper, the grain growth in the HAZ of three kinds of ultra - fine grain steels such as low carbon steel, commercial X65 steel and high purity X65 steel were evaluated.
超高碳钢中高的铝含量将降低球化处理过程中碳化物的长大倾向，减小基体晶粒的长大趋势。
With high content of Al, the carbide growth tendency of UHCS was decreased during spheroidization, which avail to restrain the growth of matrix.
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