{"id":14004,"date":"2021-02-02T14:16:18","date_gmt":"2021-02-02T13:16:18","guid":{"rendered":"https:\/\/montipower.com\/service-support\/academy\/dr-prepper-edition-5\/"},"modified":"2023-08-22T15:21:34","modified_gmt":"2023-08-22T13:21:34","slug":"dr-prepper-edition-5","status":"publish","type":"page","link":"https:\/\/montipower.com\/nl\/service-support\/academy\/dr-prepper-edition-5\/","title":{"rendered":"Dr. Prepper edition 5"},"content":{"rendered":"<div class=\"wpb-content-wrapper\"><p>[vc_section full_width=&#8221;stretch_row&#8221; content_placement=&#8221;bottom&#8221; css=&#8221;.vc_custom_1569320141112{padding-top: 30px !important;padding-bottom: 0px !important;background-color: #ff1212 !important;background-position: center !important;background-repeat: no-repeat !important;background-size: cover !important;}&#8221; el_class=&#8221;topbig&#8221;][vc_row css=&#8221;.vc_custom_1569318223776{padding-right: 100px !important;padding-left: 100px !important;}&#8221;][vc_column width=&#8221;1\/2&#8243;][vc_column_text]<\/p>\n<h1>Dr. Prepper<br \/>\nedition 5<\/h1>\n<p>[\/vc_column_text][\/vc_column][vc_column width=&#8221;1\/2&#8243;][\/vc_column][\/vc_row][vc_row full_width=&#8221;stretch_row_content_no_spaces&#8221; content_placement=&#8221;bottom&#8221; css=&#8221;.vc_custom_1572526136907{padding-top: 0px !important;padding-bottom: 100px !important;background-position: 0 0 !important;background-repeat: no-repeat !important;}&#8221; el_class=&#8221;hometopfotorij&#8221;][vc_column][\/vc_column][\/vc_row][\/vc_section][vc_section full_width=&#8221;stretch_row&#8221; el_class=&#8221;textcomp&#8221; css=&#8221;.vc_custom_1589963507382{margin-top: -250px !important;margin-bottom: 0px !important;}&#8221;][vc_row][vc_column][vc_single_image image=&#8221;5721&#8243; img_size=&#8221;700&#215;700&#8243; alignment=&#8221;center&#8221;][\/vc_column][\/vc_row][vc_row full_width=&#8221;stretch_row&#8221; css=&#8221;.vc_custom_1572525974229{background-color: #f1f1f1 !important;}&#8221;][vc_column][vc_column_text el_class=&#8221;montbreadcrumbs&#8221; css=&#8221;.vc_custom_1569318576735{padding-right: 100px !important;padding-left: 100px !important;}&#8221;]<nav aria-label=\"breadcrumbs\" class=\"rank-math-breadcrumb\"><p><span class=\"last\">Home<\/span><\/p><\/nav>[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column width=&#8221;2\/3&#8243;][vc_column_text]<\/p>\n<h3 class=\"p1\">Compressive Residual Stress generated by Bristle Blasting Process with Implication upon Stress Corrosion Cracking<\/h3>\n<p class=\"p1\">In this 5 th edition Dr. Prepper presents the abstract summarizes of Professor Stango\u2019s work published by NACE International, addressing key aspects of surfaces that are generated by the Bristle Blasting process.<\/p>\n<p class=\"p1\">Important differences are discussed between striation-based (e.g., grinding or power brushing) and crater-based processes (e.g., abrasive blasting or Bristle Blasting). Special emphasis is placed on examining compressive residual stresses that are generated during the Bristle Blasting process and it\u2019s repercussions on component life.<\/p>\n<p>[\/vc_column_text][\/vc_column][vc_column width=&#8221;1\/3&#8243;][vc_single_image image=&#8221;13761&#8243;][vc_column_text]<\/p>\n<p style=\"text-align: right;\"><em>The regular RED PAPER from MontiPower<sup>\u00ae<\/sup>. Full of nice to know &#8211; and need to know &#8211; facts about the most optimal surface preparation since 1987.<\/em><\/p>\n<p>[\/vc_column_text][\/vc_column][\/vc_row][\/vc_section][vc_section full_width=&#8221;stretch_row&#8221; el_class=&#8221;textcomp&#8221; css=&#8221;.vc_custom_1589962725517{margin-top: -10px !important;margin-bottom: 0px !important;}&#8221;][vc_row][vc_column][vc_single_image image=&#8221;13773&#8243; img_size=&#8221;800&#215;800&#8243; alignment=&#8221;center&#8221;][\/vc_column][\/vc_row][vc_row][vc_column width=&#8221;1\/2&#8243;][vc_column_text]<\/p>\n<p class=\"p1\"><span class=\"s1\">Striation-based surface preparation is characterized by score markings due to extended sliding contact duration between abrasive media and metallic surface. Thus, workpiece surfaces are subjected to greater material removal rates and frictional heating. <\/span><\/p>\n<p class=\"p1\"><span class=\"s1\">Excessive temperature can even lead <\/span><span class=\"s1\">to burn marks, also referred to as grinding burn, and is known to create extreme tensile residual stress that reduces the component life and increases susceptibility to stress corrosion cracking (ssc).<\/span> <strong><span class=\"s1\" style=\"color: #ff0000;\"><sup>1<\/sup><\/span><\/strong><\/p>\n<p>[\/vc_column_text][\/vc_column][vc_column width=&#8221;1\/2&#8243;][vc_single_image image=&#8221;13785&#8243; alignment=&#8221;center&#8221;][\/vc_column][\/vc_row][vc_row][vc_column width=&#8221;1\/2&#8243;][vc_single_image image=&#8221;13790&#8243; alignment=&#8221;center&#8221;][\/vc_column][vc_column width=&#8221;1\/2&#8243;][vc_column_text]<\/p>\n<p class=\"p1\">In contrast, crater-based processes generate minimal frictional heat, and create anchor profiles that are deemed essential for the subsequent adhesion and stability of applied protective coatings. Surface fragmentation provides the basis for rust removal and exposure of subsequent base-metal.<\/p>\n<p class=\"p1\">That is, as a result of these micro-indentations, surfaces are cleaned and profiled simultaneously. Moreover, the appealed compressive residual stress in the workpiece is verifiable to a significant subsurface depth <span class=\"s1\" style=\"color: #ff0000;\">(Fig. 1). <strong><sup>1<\/sup><\/strong><\/span><\/p>\n<p><a name=\"craterbased\"><\/a>[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_empty_space][\/vc_column][\/vc_row][vc_row][vc_column][vc_single_image image=&#8221;13823&#8243; img_size=&#8221;large&#8221; alignment=&#8221;center&#8221;][vc_column_text]<\/p>\n<p class=\"p1\"><span class=\"s1\" style=\"color: #ff0000;\">Figure 1: <\/span>Cross sectional micrograph depicting worked layer and 100 \u00b5m undisturbed substrate of a Bristle Blasted surface (ABS-A steel)<strong> <span class=\"s1\" style=\"color: #ff0000;\"><sup>2<\/sup> <\/span><\/strong><\/p>\n<p>[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text]<\/p>\n<p class=\"p1\"><span class=\"s1\">Stango machined a common ship construction steel (ABS-A) by using the Bristle Blasting process and investigated thoroughly the developing longitudinal and transverse stress, respectively, via x-ray diffraction. Both follow a similar pattern and reach the greatest compressive residual stress within the vicinity of 30 \u2013 50 \u03bcm. <\/span><\/p>\n<p class=\"p1\"><span class=\"s2\" style=\"color: #ff0000;\">Fig. 2<\/span><span class=\"s1\"> illustrates that compressive residual stress is measurable to a depth of ~300 \u03bcm before normalization. From this Stango infers an enhancement of component life, because of improved resistance to crack growth, as well as delaying the onset of stress corrosion cracking.<strong><span class=\"s1\" style=\"color: #ff0000;\"><sup> 3<\/sup><\/span><\/strong><\/span><\/p>\n<p>[\/vc_column_text][vc_single_image image=&#8221;13828&#8243; img_size=&#8221;large&#8221; alignment=&#8221;center&#8221;][vc_column_text]<\/p>\n<p class=\"p1\"><span class=\"s1\" style=\"color: #ff0000;\">Figure 2:<\/span> Residual stresses measured using x-ray diffraction for a Bristle Blasted surface (ABS-A steel)<strong><span class=\"s1\" style=\"color: #ff0000;\"><sup> 2<\/sup><\/span><\/strong><\/p>\n<p>[\/vc_column_text][\/vc_column][\/vc_row][\/vc_section][vc_section full_width=&#8221;stretch_row&#8221; el_class=&#8221;textcomp&#8221; css=&#8221;.vc_custom_1589962315313{margin-top: -10px !important;margin-bottom: 0px !important;}&#8221;][vc_row][vc_column][vc_empty_space][\/vc_column][\/vc_row][vc_row][vc_column][vc_single_image image=&#8221;13853&#8243; img_size=&#8221;700&#215;600&#8243;][\/vc_column][\/vc_row][vc_row][vc_column width=&#8221;1\/2&#8243;][vc_single_image image=&#8221;13842&#8243; img_size=&#8221;medium&#8221;][\/vc_column][vc_column width=&#8221;1\/2&#8243;][vc_column_text]<\/p>\n<h5><span style=\"color: #ff0000;\"><i>REFERENCES:<br \/>\n<\/i><\/span><span class=\"s1\"><i>[1]<\/i><\/span><i> Stango, R.J., \u201cCompressive Residual Stress Generated by Bristle Blasting Process with Implication upon SCC\u201d. In NACE Corrosion Conference 2014, San Antonio, Paper no. C2014-5152, Page 3.\u00a0<\/i><span class=\"s1\"><i>[2]<\/i><\/span><i> Ibid., page 4.<span class=\"Apple-converted-space\">\u00a0 <\/span><\/i><span class=\"s1\"><i>[3] <\/i><\/span><i>Ibid., page 4.<\/i><\/h5>\n<p>[\/vc_column_text][vc_single_image image=&#8221;12180&#8243; img_size=&#8221;medium&#8221;][\/vc_column][\/vc_row][\/vc_section][vc_section full_width=&#8221;stretch_row&#8221; el_class=&#8221;textcomp&#8221; css=&#8221;.vc_custom_1589962373636{margin-top: -10px !important;}&#8221;][vc_row][vc_column][vc_separator color=&#8221;custom&#8221; style=&#8221;shadow&#8221; border_width=&#8221;2&#8243; accent_color=&#8221;#a5adb0&#8243;][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text]<\/p>\n<h3><a href=\"https:\/\/heyzine.com\/flip-book\/fa5650607d.html#page\/1\" target=\"_blank\" rel=\"noopener\">Download Dr. Prepper No. 5<\/a><\/h3>\n<p>You can also download the complete Dr. Prepper editions:[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column width=&#8221;1\/2&#8243;][vc_btn title=&#8221;Dr. Prepper No. 1&#8243; style=&#8221;classic&#8221; shape=&#8221;square&#8221; align=&#8221;left&#8221; link=&#8221;url:https%3A%2F%2Fheyzine.com%2Fflip-book%2Ffedfab452b.html|title:Dr.%20Prepper%20No.%201|target:_blank&#8221; el_class=&#8221;hometopfotobutton&#8221;][vc_empty_space height=&#8221;10px&#8221;][vc_btn title=&#8221;Dr. Prepper No. 3&#8243; style=&#8221;classic&#8221; shape=&#8221;square&#8221; align=&#8221;left&#8221; link=&#8221;url:https%3A%2F%2Fheyzine.com%2Fflip-book%2Ff58c97a2cf.html|title:Dr.%20Prepper%20No.%203|target:_blank&#8221; el_class=&#8221;hometopfotobutton&#8221;][\/vc_column][vc_column width=&#8221;1\/2&#8243;][vc_btn title=&#8221;Dr. Prepper No. 2&#8243; style=&#8221;classic&#8221; shape=&#8221;square&#8221; align=&#8221;left&#8221; link=&#8221;url:https%3A%2F%2Fheyzine.com%2Fflip-book%2F39528c7f76.html|title:Dr.%20Prepper%20No.%202|target:_blank&#8221; el_class=&#8221;hometopfotobutton&#8221;][vc_empty_space height=&#8221;10px&#8221;][vc_btn title=&#8221;Dr. Prepper No. 4&#8243; style=&#8221;classic&#8221; shape=&#8221;square&#8221; align=&#8221;left&#8221; link=&#8221;url:https%3A%2F%2Fheyzine.com%2Fflip-book%2F2be7d30897.html%23page%2F1|title:Dr.%20Prepper%20No.%204|target:_blank&#8221; el_class=&#8221;hometopfotobutton&#8221;][\/vc_column][\/vc_row][vc_row][vc_column][vc_empty_space height=&#8221;35px&#8221;][vc_separator color=&#8221;custom&#8221; style=&#8221;shadow&#8221; border_width=&#8221;2&#8243; accent_color=&#8221;#a5adb0&#8243;][\/vc_column][\/vc_row][\/vc_section]<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>[vc_section full_width=&#8221;stretch_row&#8221; content_placement=&#8221;bottom&#8221; css=&#8221;.vc_custom_1569320141112{padding-top: 30px !important;padding-bottom: 0px !important;background-color: #ff1212 !important;background-position: center &#8230; <\/p>\n","protected":false},"author":19,"featured_media":9595,"parent":10543,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"content-type":"","footnotes":""},"class_list":["post-14004","page","type-page","status-publish","has-post-thumbnail","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/montipower.com\/nl\/wp-json\/wp\/v2\/pages\/14004","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/montipower.com\/nl\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/montipower.com\/nl\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/montipower.com\/nl\/wp-json\/wp\/v2\/users\/19"}],"replies":[{"embeddable":true,"href":"https:\/\/montipower.com\/nl\/wp-json\/wp\/v2\/comments?post=14004"}],"version-history":[{"count":4,"href":"https:\/\/montipower.com\/nl\/wp-json\/wp\/v2\/pages\/14004\/revisions"}],"predecessor-version":[{"id":46889,"href":"https:\/\/montipower.com\/nl\/wp-json\/wp\/v2\/pages\/14004\/revisions\/46889"}],"up":[{"embeddable":true,"href":"https:\/\/montipower.com\/nl\/wp-json\/wp\/v2\/pages\/10543"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/montipower.com\/nl\/wp-json\/wp\/v2\/media\/9595"}],"wp:attachment":[{"href":"https:\/\/montipower.com\/nl\/wp-json\/wp\/v2\/media?parent=14004"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}