output
发表于 2025-3-28 18:28:17
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CHASE
发表于 2025-3-28 22:14:31
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Flirtatious
发表于 2025-3-28 23:30:21
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委派
发表于 2025-3-29 04:33:18
Enhancing the Weldability of C-Mn Pressure Vessel Steels — A Tale of Two Elementst be economically achieved without its presence. It is unfortunate, therefore, that some national and international pressure vessel specifications are still written in such a way as to, apparently, dissuade the steelmaker from making the best use of this unique and effective element..Fortunately, he
auxiliary
发表于 2025-3-29 08:09:10
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moribund
发表于 2025-3-29 12:48:27
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上涨
发表于 2025-3-29 16:00:43
Creep Strength Behavior of Boron Added P91 Steel and its Weld in the Temperature Range of 600–650°C stress levels) exposure creep crack moves from weld metal to HAZ (Type II crack). Rupture life was found to superior for the base and weld in the boron containing steel when higher normalizing temperature is used. Estimation of 10. h was attempted based on short term rupture data available and weld
小溪
发表于 2025-3-29 21:50:44
Development of Ferritic Heat-Resistant Steels Based on New Materials Design Concept for Advanced Higentional 9Cr ferric heat-resistant steels at every temperatures. The creep rupture lives of the steel were 10 to 100 times longer than that of the conventional versions. The creep rupture strength of the 15Cr steels after 100 000 h was estimated to be 100 to 130 MPa at 923 K and 45 to 70 MPa at 973
confide
发表于 2025-3-30 02:39:56
Alloy Design of Martensitic 9Cr-Boron Steel for A-USC Boiler at 650 °C — Beyond Grades 91, 92 and 12 60–90 ppm nitrogen, where no boron nitride forms during normalizing heat treatment, exhibits not only much higher creep strength of base metal than Grades 91, 92 and 122 but also substantially no degradation in creep strength due to Type IV fracture in HAZ of welded joints at 650°C. The protective
高贵领导
发表于 2025-3-30 07:48:54
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