کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7972901 | 1514622 | 2018 | 40 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
An experiment-based model of combined hardening and non-hardening embrittlement in an interstitial free steel
ترجمه فارسی عنوان
یک مدل مبتنی بر آزمایش باند ترکیبی سخت و غیر سخت کننده در فولاد آزاد بینابینی
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کلمات کلیدی
ضعف مرز دانه جداسازی، فلزات و آلیاژها،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
چکیده انگلیسی
The fracture appearance transition temperatures (FATTs) are evaluated for the samples of a Nb-stabilized and P-strengthened interstitial free (IF) steel. Based on the measurements, the combined effect of hardening and phosphorus grain boundary segregation on the embrittlement of the steel is investigated. Both hardening and P boundary segregation can raise the FATT of the steel, causing hardening embrittlement and non-hardening embrittlement, respectively. Meanwhile, the grain size influences both kinds of embrittlement, i.e., there is a synergistic effect between grain size and hardening or P boundary segregation on the FATT of the steel. With the aid of the Taylor expansion along with the experimental data, a combined hardening and non-hardening embrittlement equation is established, being expressed as FATTâ¯=â¯2.1Cp +â¯3.48Ïs ââ¯22.36dâ1â2 +â¯0.64(Cp ââ¯14)(dâ1â2 ââ¯3.06)â¯+â¯0.896(Ïs ââ¯14)(dâ1â2 ââ¯3.06)â¯ââ¯13.7, where FATT is the fracture appearance transition temperature in °C, Cp is the phosphorus boundary concentration in at%, Ïs is the yield strength in 10â¯MPa, and d is the grain size in mm. A comparison of the calculated and measured FATTs is made, demonstrating that the calculated FATTs are well consistent with the measured ones.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 721, 4 April 2018, Pages 189-199
Journal: Materials Science and Engineering: A - Volume 721, 4 April 2018, Pages 189-199
نویسندگان
Yu Zhao, Shenhua Song,