Study on Coercivity-Stress Relationship of X80 Steel under Biaxial Stress

<div>Binary one-time fitting of test piece experimental data. (a) Coercive force fitting of test piece 2 in <i>X</i> direction <span class="nowrap"><svg height="14.1649pt" id="M126" style="vertical-align:-5.529pt" version="1.1" viewbox="-0.0498162 -8.6359 188.971 14.1649" width="188.971pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M828 650H570L564 622C646 614 650 609 634 524L604 366H253L281 524C296 608 308 615 382 622L388 650H132L126 622C211 615 214 609 198 524L121 122C106 42 102 35 23 28L17 0H276L282 28C196 35 191 40 206 122L243 324H597L559 123C544 42 537 35 452 28L446 0H710L716 28C632 35 628 43 643 122L719 524C735 610 741 615 822 622L828 650Z"></path></g><g transform="matrix(.013,0,0,-0.013,10.662,0)"><path d="M383 397C383 424 344 448 299 448C244 448 172 409 132 375C66 319 23 227 23 146C23 42 74 -12 146 -12C208 -12 298 30 359 103L343 124C315 95 248 48 192 48C145 48 111 85 111 163C111 228 129 294 151 330C171 363 201 401 241 401C275 401 302 384 325 356C332 347 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Advances in Materials Science and Engineering

fig18

Figure 18

Figure 18: Study on Coercivity-Stress Relationship of X80 Steel under Biaxial Stress 