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    SHANG Yan-wei, ZHAO Mei-chun, CHEN Wei-feng . Crack Analysis of TP2 Copper Helical Pipe[J]. PHYSICAL TESTING AND CHEMICAL ANALYSIS PART A:PHYSICAL TESTING, 2009, 45(3): 172-174.
    Citation: SHANG Yan-wei, ZHAO Mei-chun, CHEN Wei-feng . Crack Analysis of TP2 Copper Helical Pipe[J]. PHYSICAL TESTING AND CHEMICAL ANALYSIS PART A:PHYSICAL TESTING, 2009, 45(3): 172-174.
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    Crack Analysis of TP2 Copper Helical Pipe

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    • The macroscopic analysis,chemical composition analysis,SEM observation and metallographic examination were developed to analyze cracks of the TP2 copper helical pipe. The results showed that multiple deformations made the products in a work-hardening state during the cold forming,so internal stress concentrated in the fin-site lead to cracks. And the improved measures were also brought forward.
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