Transactions of Materials and Heat Treatment

Title：Segregation improvement in steel by changing forging technology

Authors： Xiang Xiaoqin Yu Tao

Unit： Chongqing Chang Zheng Heavy Industry Co. Ltd. Acceptance Inspection Office at Chongqing of The Ministry of China Railway

KeyWords： tissue segregation forging diffusion annealing heating temperature

ClassificationCode：

year,vol(issue):pagenumber：2014,39(1):11-14

Abstract：

To solve the quality problem of different degree tissue segregation in large or middle-size alloy steel forgings,the corresponding measures were studied. Taking 42CrMo diesel engine link rod and 17CrNiMo6 input gear roller as research objects,the forging micro-tissue segregation was improved effectively by improving forging temperature(link rod is 1250 ℃ and input gear roller is 1280 ℃), increasing upsetting times(upsetting and stretching for three times instead of directly stretching) and keeping warm for enough time at forging temperature(link rod is 2 h and input gear roller is 2.5 h).

Funds：

向小琴（1976-），女，学士，工程师

Reference：

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