کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10620827 | 988703 | 2007 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of a laser pre-quenched steel substrate surface on the crack driving force in a coating-steel substrate system
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Effect of a laser pre-quenched steel substrate surface on the crack driving force in a coating-steel substrate system Effect of a laser pre-quenched steel substrate surface on the crack driving force in a coating-steel substrate system](/preview/png/10620827.png)
چکیده انگلیسی
A mechanical model of a coating/laser pre-quenched steel substrate specimen with a crack oriented perpendicular to the interface between the coating and the hardened layer is developed to quantify the effects of the residual stress and hardness gradient on the crack driving force in terms of the J-integral. It is assumed that the crack tip is in the middle of the hardened layer of the pre-quenched steel substrate. Using a composite double cantilever beam model, analytical solutions can be derived, and these can be used to quantify the effects of the residual stress and the hardness gradient resulting from the pre-quenched steel substrate surface on the crack driving force. A numerical example is presented to investigate how the residual compressive stress, the coefficient linking microhardness and yield strength and the Young's modulus ratio of the hardened layer to the coating influence the crack driving force for a given crack length.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Acta Materialia - Volume 55, Issue 13, August 2007, Pages 4349-4358
Journal: Acta Materialia - Volume 55, Issue 13, August 2007, Pages 4349-4358
نویسندگان
Ban-Quan Yang, Kun Zhang, Guang-Nan Chen, Geng-Xing Luo, Jing-Hua Xiao,